The students are invited to answer the questions:
1.What are the causes of water (river) pollution?
2. What are the consequences of water (river) pollution?
Give the answers to the questions in comments below.
Add links to articles, photos, videos, if possible
1.Predators fall into fresh water in various ways: as a result of accidents, deliberate emissions of garbage, spills from factories
ReplyDelete2.the consequences of such dying fish, people though drinking water purified through the filter all the way some kind of extraneous matter gets into the body. And just not beautiful when you sit by the water, and to the coast floats a package
Dyba Maksym 9-G form
1.Predators fall into fresh water in various ways: as a result of accidents, deliberate emissions of garbage, spills from factories
Delete2.the consequences of such dying fish, people though drinking water purified through the filter all the way some kind of extraneous matter gets into the body. And just not beautiful when you sit by the water, and to the coast floats a package
Dyba Maksym 9-G form
many rivers and streams are significantly polluted all around the world.
ReplyDeleteA primary reason for this is that all three major sources of pollution (industry, agriculture and domestic) are concentrated along the rivers. Industries and cities have historically been located along rivers because the rivers provide transportation and have traditionally been a convenient place to discharge waste. Agricultural activities have tended to be concentrated near rivers, because river floodplains are exceptionally fertile due to the many nutrients that are deposited in the soil when the river overflows.
https://www.lenntech.com/rivers-pollution-quality
Kyiv Ukraine
Causes of water pollution
ReplyDeleteIndustrial waste
Industries cause huge water pollution with their activities. These come mainly from:
Sulphur – non-metallic substance that is harmful to marine life.
Asbestos – this pollutant has cancer-causing properties.
Lead and Mercury – these are metallic elements and can cause environmental and health problems for humans and animals. It is also poisonous. It is usually very hard to clean it up from the environment once it gets into it because it is non-biodegradable.
Nitrates & Phosphates– these are found in fertilizers, and are often washed from the soils to nearby water bodies.
Oils – Oils form a thick layer on the water surface because they do not dissolve in water. This can stop marine plants receiving enough light. It is also harmful to fish and marine birds. A classic example is the BP oil spill in 2012 wich killed thousands of animal species.
Sewage and waste water
Water is one of the basic needs of the human being. We use it to quench our thirst, give energy to our body, and wash our clothes, dishes, and other parts of our home. Without water, we will die.
Every day, we cook, do laundry, flush the toilet, wash our cars, shower and do many things that use water. In many developed communities, wastewater and soluble waste (called sewage) is treated, cleaned and dumped into the sea or river. Even though they are treated, they are never the same as fresh water. In some not-so-developed countries, the sewage is not treated but quickly dumped into the sea or water bodies. This is VERY dangerous because they contaminate the environment and water bodies and bring many deadly diseases to us.
Ocean and marine dumping
Paper waste, food waste, plastic, rubber, metallic and aluminum waste. In some countries, they are deposited into the sea. These waste types take some time to decompose. For example, it is known that paper takes about 6 weeks, aluminum takes about 200 years and glass takes even more years. They harm sea animals and cause a lot of water animal deaths.
Atmospheric
Atmospheric deposition is the pollution of water bodies caused by air pollution. Each time the air is polluted with sulphur dioxide and nitrogen oxide, they mix with water particles in the air and form a toxic substance. This falls as acid rain to the ground and gets washed into water bodies. The result is that water bodies also get contaminated and this affects animals and water organisms.
Many water bodies near urban areas (cities and towns) are highly polluted. This is the result of both garbage dumped by individuals and dangerous chemicals legally or illegally dumped by manufacturing industries, health centers, schools and market places.
Consequences of water pollution:
Death of water animals
The main problem caused by water pollution is that it kills organisms that depend on these water bodies. Dead fish, crabs, birds and sea gulls, dolphins, and many other animals often wind up on beaches, killed by pollutants in their habitat (living environment).
Disruption of food-chains
Pollution disrupts the natural food chain as well. Pollutants such as lead and cadmium are eaten by tiny animals. Later, these animals are consumed by fish and shellfish, and the food chain continues to be disrupted at all higher levels.
Diseases
Humans are affected by this process as well. People can get diseases such as hepatitis by eating seafood that has been poisoned. In many poor nations, there is always outbreak of cholera and diseases as a result of poor drinking water treatment from contaminated waters.
Destruction of ecosystems
Ecosystems (the interaction of living things in a place, depending on each other for life) can be severely changed or destroyed by water pollution. Many areas are now being affected by careless human pollution, and this pollution is coming back to hurt humans in many ways.
Economic cost
It can cost a lot more to purify drinking water that takes its source from polluted water bodies.
Tarasenko Katya 9-a
http://eschooltoday.com/pollution/water-pollution/industrial-causes-of-water-pollution.html
Yehor Dadiveren, 9-G
ReplyDeleteGang
1.The main causes of water pollution in the Ganges river are the increase in the population density, various human activities such as bathing, washing clothes, the bathing of animals, and dumping of various harmful industrial waste into the rivers.
2.The consequence of this can be a complete extinction of fish and living organisms in the river. Also, pollution of the Ganges River leads to dangerous infections. In this way the river becomes dangerous for man and the surrounding fauna.
https://en.m.wikipedia.org/wiki/Pollution_of_the_Ganges
Thames
1.Sewage Influences;
Direct Industrial Discharge;
Rivers - Tributaries;
Upper Freshwater Thames;
Storm Water;
Each of these factors of pollution affect the Thames by different amounts. Data collected was by the Thames Water Authorities in 1976 they recorded how much each factor contributes towards the total pollution of the Thames.
2.This can lead to increased garbage and dirty water. As a result, the reproduction of infections in water and the extinction of fish.
https://sites.google.com/site/waterquality101/home/affects-of-rainwater-run-off
Dnieper
1.Causes of pollution of the Dniepro River:
-the construction of numerous industrial complexes in the basin river;
- huge volumes of water with drawls for industry and accretion;
-the enterprises pollute the waters of the Dnipro pouring their waste water into the river.
2.As a result, fish in the river dies. Also, the Dnipro begins to blossom and turn into a swamp due to pollution.
http://confcontact.com/2013_04_04_dnu/26_Moskaleva.htm
Colorado
1.The 2015 Gold King Mine waste water spill:
Miners caused the accident while attempting to drain ponded water near the entrance of the mine on August 5.
Workers accidentally
destroyed the plug holding the water trapped inside the mine, which caused a overflow Colorado , spilling three million US gallons of wastewater and waste, including heavy metals such as cadmium and lead, and other toxic elements.
2.As a result, people can not eat fish from the river in the near future. It is also forbidden to settle near the river in some areas, because of the rich content of chemicals.
https://en.m.wikipedia.org/wiki/2015_Gold_King_Mine_waste_water_spill
Kyiv, Ukraine
A lot of speech and lakes are getting dirtier and dirtier. This happens because of the fact that people throw out their trash.
ReplyDeleteRoma Musiienko
Ukraine Kyiv
http://google.translater.com
1)Water pollution is caused due to several reasons. Here are the few major causes of water pollution: Sewage And Waste Water: Sewage, garbage and liquid waste of households, agricultural lands and factories are discharged into lakes and rivers.
ReplyDelete2)Humans are the main cause of water pollution, which is triggered in many ways: by the dumping of industrial waste; due to temperature rise, that cause the alteration of water by reducing the oxygen in its composition;
https://www.activesustainability.com/water/causes-consequences-water-pollution/
1) Infested with waste ranging from floating plastic bags to chemical waste, our water bodies have turned into a pool of poison. The contamination of water bodies in simplest words means water pollution. Thereby the abuse of lakes, ponds, oceans, rivers, reservoirs etc is water pollution. Pollution of water occurs when substances that will modify the water in negative fashion are discharged in it.
ReplyDeletehttps://www.conserve-energy-future.com/sources-and-causes-of-water-pollution.php
Humans are the main cause of water pollution, which is triggered in many ways: by the dumping of industrial waste; due to temperature rise, that cause the alteration of water by reducing the oxygen in its composition; Or due to deforestation, which causes sediments and bacteria to appear under the soil and therefore contaminate groundwater. In the same way, the pesticides used in agricultural fields filter through underground channels and reach the consumption networks; And also as a result of accidental spillage of oil.https://www.activesustainability.com/water/causes-consequences-water-pollution/
2)Diseases: In humans, drinking or consuming polluted water in any way has many disastrous effects on our health. It causes typhoid, cholera, hepatitis and various other diseases.
Destruction of Ecosystems: Ecosystems are extremely dynamic and respond to even small changes in the environment. Water pollution can cause an entire ecosystem to collapse if left unchecked.
Eutrophication: Chemicals in a water body, encourage the growth of algae. These algae form a layer on top of the pond or lake. Bacteria feed on this algae and this decreases the amount of oxygen in the water body, severely affecting the aquatic life there.
Effects the food chain: Disruption in food chains happens when toxins and pollutants in the water are consumed by aquatic animals (fish, shellfish etc) which are then consumed by humans.
https://www.toppr.com/guides/biology/natural-resources/water-and-water-pollution/
Bye
1) Water pollution may be caused by the intentional or unintentional disposal of hazardous chemicals and materials into a body of water. 2) Rainfall may cause polluted landscapes to disperse their poisonous materials into the water and poison the surrounding water.
ReplyDeleteDubyk Andriy
Pollution in the Lachine Canal, Canada
ReplyDeleteWater is typically referred to as polluted when it is impaired by anthropogenic contaminants. Due to these contaminants it either does not support a human use, such as drinking water, or undergoes a marked shift in its ability to support its biotic communities, such as fish. Natural phenomena such as volcanoes, algae blooms, storms, and earthquakes also cause major changes in water quality and the ecological status of water.
Water pollution is a major global problem. It requires ongoing evaluation and revision of water resource policy at all levels (international down to individual aquifers and wells). It has been suggested that water pollution is the leading worldwide cause of death and diseases,[2][1] and that it accounts for the deaths of more than 14,000 people daily.[1]
India and China are two countries with high levels of water pollution: An estimated 580 people in India die of water pollution related illness (including waterborne diseases) every day.[8] About 90 percent of the water in the cities of China is polluted.[9] As of 2007, half a billion Chinese had no access to safe drinking water.[10]
In addition to the acute problems of water pollution in developing countries, developed countries also continue to struggle with pollution problems. For example, in a report on water quality in the United States in 2009, 44 percent of assessed stream miles, 64 percent of assessed lake acres, and 30 percent of assessed bays and estuarine square miles were classified as polluted.[11]
https://en.wikipedia.org/wiki/Water_pollution
Valeriia Kalchenko
Ukrain, Kiev
1. A number of factors cause pollution:
ReplyDeletethe physical disturbance of land due to construction of houses, industries, roads, etc.;
chemical pollution from industries, mines, etc.;
inadequate sewage collection and treatment;
increase in fertilisers to grow more food. This results in an increase in nutrients (nitrates and phosphates) in the water which causes enhanced plant growth (algal blooms). When this plant material dies and decays the bacteria uses the oxygen in the water. This lowering of oxygen levels results in the death of other water life that needs oxygen to survive, eg. fish, etc. This process is called eutrophication;
litter, which causes disease and has a negative visual impact.
http://www.waterwise.co.za/site/water/environment/causes-of-water-pollution.html
2. What are the main consequences of water pollution? Firstly, the disappearance of biodiversity and aquatic ecosystems. Also, humans are harmed by the alteration in the food chain and by contracting illnesses when drinking or using contaminated water. As you can see, water pollution has a great impact in the environment.
https://www.activesustainability.com/water/causes-consequences-water-pollution/
Kyiv, Ukraine
Mariia Batih
1.the main causes of water pollution are waste from factories, garbage, oil and sewage.
ReplyDelete2.Water pollution leads to the extinction of most species of fish and marine life, and so on.Water pollution also has a strong environmental impact.
Melnik Gleb
9-V
Kyiv,Ukraine.
1.Lots of factors lead to water pollution and reducing overall quality of river water. Some of the most serious contributing factors are:
ReplyDeleteIndustrial wastes, mixtures of chemicals, heavy metals are all discharged in water and these are difficult to clean up.Agricultural wastes, chemicals, feritilisers, pesticides used in agriculture have made the river water bodies contaminated.Nature’s rain also brings with it pollutants as it falls through polluted air. We call this acid rain, which when reached the soil, releases harmful substances.Domestic wastes from households and the sewage that we throw into rivers increases the pollution levels.Regular disposal of plastic bags and plastic objects, solid wastes, flowers, garlands is another cause of pollution.People responding to nature’s call in open spaces near the water bodies also contribute to river pollution.Animals washing, car washing, clothes washing are other causes.Another cause of river pollution is the dumping of human remains, partially burned bodies, dead bodies, which pose serious health threats. https://www.quora.com/What-are-the-reasons-of-river-pollution
2. Consequences of river pollution
1. Human Health
We all drink water that comes from a source: this may be a lake or local river. In countries that have poor screening and purification practices, people often get water-borne disease outbreaks such as cholera and tuberculosis. Every year, there are an estimated 3–5 million cholera cases and 100,000–120,000 deaths due to cholera. (WHO estimates that only 5–10% of cases are officially reported.)
In developed countries, even where there are better purification methods, people still suffer from the health effects of water pollution. Take toxins emitted by algae growth for instance: this can cause stomach aches and rashes. Excess nitrogen in drinking water also poses serious risks to infants. EPA’s 2010 National
Lakes Assessment found that almost 20 per cent of the nation’s lakes have high levels of nitrogen and phosphorus pollution. The report also showed that poor lake conditions related to nitrogen or phosphorus pollution doubled the likelihood of poor ecosystem health1.
2. Ecosystems
Nutrient pollution from upstream (creeks and streams) often flow downhill and even travel miles into other larger water bodies. The effect is that, it breeds algae growth and causes the growth of many more water organism. This algae attack affects fish and other aquatic animals by absorbing and reducing their oxygen supply. Algae growth also clogs fish gills. Naturally, the order of ecosystems in that water are affected negatively, as the destruction or introduction of any foreign organism alter the entire food chain in there.
3. Death of animals
Animals, including water animals die when water is poisoned for various reasons. Other animals are stressed and their populations are endangered. In a classic case of marine pollution in recent time, 16000 miles of a US coastline was affected by an oil spill. That water pollution caused a lot of damage and deaths of many animals. Over 8,000 animals (birds, turtles, mammals) were reported dead just 6 months after the spill, including many that are already on the endangered species list. Immediate impact on the wildlife includes oil-coated birds and sea turtles, mammal ingestion of oil, and dead or dying deep-sea coral2. Animals are also affected by solid waste thrown into water bodies, as they harm them in many ways. https://enviropol.com/green/2018/06/18/effects-of-water-pollution/
Ira Kolisnichenko
9-V
Kyiv, Ukraine
1. Industrial waste: Industries produce huge amount of waste which contains toxic chemicals and pollutants which can cause air pollution and damage to us and our environment.
ReplyDeleteSewage and waste water: The sewage and waste water that is produced by each household is chemically treated and released in to sea with fresh water.
Marine dumping: The garbage produce by each household in the form of paper, aluminum, rubber, glass, plastic, food if collected and deposited into the sea in some countries. These items take from 2 weeks to 200 years to decompose.
Accidental Oil leakage: Oil spill pose a huge concern as large amount of oil enters into the sea and does not dissolve with water
https://www.conserve-energy-future.com/sources-and-causes-of-water-pollution.php
2. Diseases: In humans, drinking or consuming polluted water in any way has many disastrous effects on our health. It causes typhoid, cholera, hepatitis and various other diseases.
Destruction of Ecosystems: Ecosystems are extremely dynamic and respond to even small changes in the environment. Water pollution can cause an entire ecosystem to collapse if left unchecked.
Eutrophication: Chemicals in a water body, encourage the growth of algae. These algae form a layer on top of the pond or lake. Bacteria feed on this algae and this decreases the amount of oxygen in the water body, severely affecting the aquatic life there.
Effects the food chain: Disruption in food chains happens when toxins and pollutants in the water are consumed by aquatic animals (fish, shellfish etc) which are then consumed by humans.
https://www.toppr.com/guides/biology/natural-resources/water-and-water-pollution/
1)Water pollution occurs when unwanted materials enter in to water, changes the quality of water .and harmful to environment and human health .Water is an important natural resource used for drinking and other developmental purposes in our lives . Safe drinking water is necessary for human health all over the world. Being a universal solvent, water is a major source of infection. According to world health organization (WHO) 80% diseases are water borne. Drinking water in various countries does not meet WHO standards. 3.1% deaths occur due to the unhygienic and poor quality of water .
ReplyDeleteDischarge of domestic and industrial effluent wastes, leakage from water tanks, marine dumping, radioactive waste and atmospheric deposition are major causes of water pollution. Heavy metals that disposed off and industrial waste can accumulate in lakes and river, proving harmful to humans and animals. Toxins in industrial waste are the major cause of immune suppression, reproductive failure and acute poisoning. Infectious diseases, like cholera, typhoid fever mand other diseases gastroenteritis, diarrhea, vomiting, skin and kidney problem are spreading through polluted water . Human health is affected by the direct damage of plants and animal nutrition. Water pollutants are killing sea weeds, mollusks, marine birds, fishes, crustaceans and other sea organisms that serve as food for human. Insecticides like DDT concentration is increasing along the food chain. These insecticides are harmful for humans .
http://www.alliedacademies.org/articles/water-pollution-and-human-health-7925.html
2)Effects of Water Pollution
* Groundwater contamination from pesticides causes reproductive damage within wildlife in ecosystems.
* Sewage, fertilizer, and agricultural run-off contain organic materials that when discharged into waters, increase the growth of algae, which causes the depletion of oxygen. The low oxygen levels are not able to support most indigenous organisms in the area and therefore upset the natural ecological balance in rivers and lakes.
* Swimming in and drinking contaminated water causes skin rashes and health problems like cancer, reproductive problems, typhoid fever and stomach sickness in humans. Which is why it’s very important to make sure that your water is clean and safe to drink.
* Industrial chemicals and agricultural pesticides that end up in aquatic environments can accumulate in fish that are later eaten by humans. Fish are easily poisoned with metals that are also later consumed by humans. Mercury is particularly poisonous to small children and women. Mercury has been found to interfere with the development of the nervous system in fetuses and young children.
* Ecosystems are destroyed by the rising temperature in the water, as coral reefs are affected by the bleaching effect due to warmer temperatures. Additionally, the warm water forces indigenous water species to seek cooler water in other areas, causing an ecological damaging shift of the affected area.
* Human-produced litter of items such as plastic bags and 6-pack rings can get aquatic animals caught and killed from suffocation.
* Water pollution causes flooding due to the accumulation of solid waste and soil erosion in streams and rivers.
* Oil spills in the water causes animal to die when they ingest it or encounter it. Oil does not dissolve in water so it causes suffocation in fish and birds
https://www.quora.com/What-are-the-causes-and-effects-of-river-pollution
1. Water pollution is caused due to several reasons. Here are the few major causes of water pollution:
ReplyDeleteSewage And Waste Water: Sewage, garbage and liquid waste of households, agricultural lands and factories are discharged into lakes and rivers. These wastes contain harmful chemicals and toxins which make the water poisonous for aquatic animals and plants.
Dumping: Dumping of solid wastes and litters in water bodies causes huge problems. Litters include glass, plastic, aluminum, styrofoam etc. Different things take different amount of time to degrade in water. They affect aquatic plants and animals.
Industrial Waste: Industrial waste contains pollutants like asbestos, lead, mercury and petrochemicals which are extremely harmful to both people and environment. Industrial waste is discharged into lakes and rivers by using fresh water making the water contaminated.
Oil Pollution: Sea water gets polluted due to oil spilled from ships and tankers while traveling. The spilled oil does not dissolve in water and forms a thick sludge polluting the water.
Acid Rain: Acid rain is pollution of water caused by air pollution. When the acidic particles caused by air pollution in the atmosphere mix with water vapor, it results in acid rain.
Global Warming: Due to global warming, there is an increase in water temperature. This increase in temperature results in death of aquatic plants and animals. This also results in bleaching of coral reefs in water.
Eutrophication: Eutrophication is an increased level of nutrients in water bodies. This results in bloom of algae in water. It also depletes the oxygen in water, which negatively affects fish and other aquatic animal population.
https://www.quora.com/What-are-the-causes-of-river-pollution-How-can-it-be-prevented
2.
Firstly, the disappearance of biodiversity and aquatic ecosystems. Also, humans are harmed by the alteration in the food chain and by contracting illnesses when drinking or using contaminated water. As you can see, water pollution has a great impact in the environment.
https://www.activesustainability.com/water/causes-consequences-water-pollution/
A.Kurnosenko 9-B
Artur Buryi. Kyiv, Ukraine.
ReplyDeleteRiver water quality and pollution. A river is defined as a large natural stream of water emptying into an ocean, lake, or other body of water and usually fed along its course by converging tributaries. Rivers and streams drain water that falls in upland areas.
1.The human being is the main responsible for water pollution Humans are the main cause of water pollution, which is triggered in many ways: by the dumping of industrial waste; due to temperature rise, that cause the alteration of water by reducing the oxygen in its composition; Or due to deforestation, which causes sediments and bacteria to appear under the soil and therefore contaminate groundwater. In the same way, the pesticides used in agricultural fields filter through underground channels and reach the consumption networks; And also as a result of accidental spillage of oil.
ReplyDelete2. What are the main consequences of water pollution? Firstly, the disappearance of biodiversity and aquatic ecosystems. Also, humans are harmed by the alteration in the food chain and by contracting illnesses when drinking or using contaminated water. As you can see, water pollution has a great impact in the environment.
https://youtu.be/71IBbTy-_n4
VALERIIA SHELIUK,9-G
KYIV,UKRAINE
1. Water is uniquely vulnerable to pollution. Known as a “universal solvent,” water is able to dissolve more substances than any other liquid on earth. It’s the reason we have Kool-Aid and brilliant blue waterfalls. It’s also why water is so easily polluted. Toxic substances from farms, towns, and factories readily dissolve into and mix with it, causing water pollution.
ReplyDelete2. The disappearance of biodiversity and aquatic ecosystems. Also, humans are harmed by the alteration in the food chain and by contracting illnesses when drinking or using contaminated water. As you can see, water pollution has a great impact in the environment.
Kyiv, Ukraine. 9-V.
River water quality and pollution
ReplyDeleteA river is defined as a large natural stream of water emptying into an ocean, lake, or other body of water and usually fed along its course by converging tributaries.
Rivers and streams drain water that falls in upland areas. Moving water dilutes and decomposes pollutants more rapidly than standing water, but many rivers and streams are significantly polluted all around the world.
A primary reason for this is that all three major sources of pollution (industry, agriculture and domestic) are concentrated along the rivers. Industries and cities have historically been located along rivers because the rivers provide transportation and have traditionally been a convenient place to discharge waste. Agricultural activities have tended to be concentrated near rivers, because river floodplains are exceptionally fertile due to the many nutrients that are deposited in the soil when the river overflows.
Sources of pollution
Farmers put fertilizers and pesticides on their crops so that they grow better. But these fertilizers and pesticides can be washed through the soil by rain, to end up in rivers. If large amounts of fertilizers or farm waste drain into a river the concentration of nitrate and phosphate in the water increases considerably. Algae use these substances to grow and multiply rapidly turning the water green. This massive growth of algae, called eutrophication, leads to pollution. When the algae die they are broken down by the action of the bacteria which quickly multiply, using up all the oxygen in the water which leads to the death of many animals.
Chemical waste products from industrial processes are sometimes accidentally discharged into rivers. Examples of such pollutants include cyanide, zinc, lead, copper, cadmium and mercury. These substances may enter the water in such high concentrations that fish and other animals are killed immediately. Sometimes the pollutants enter a food chain and accumulate until they reach toxic levels, eventually killing birds, fish and mammals.
Factories use water from rivers to power machinery or to cool down machinery. Dirty water containing chemicals is put back in the river. Water used for cooling is warmer than the river itself. Raising the temperature of the water lowers the level of dissolved oxygen and upsets the balance of life in the water.
People are sometimes careless and throw rubbish directly into rivers.
Read more: https://www.lenntech.com/rivers-pollution-quality#ixzz5Xmui2v9C
What Is Water Pollution?
ReplyDeleteWater pollution occurs when harmful substances—often chemicals or microorganisms—contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
What Are the Causes of Water Pollution?
Water is uniquely vulnerable to pollution. Known as a “universal solvent,” water is able to dissolve more substances than any other liquid on earth. It’s the reason we have Kool-Aid and brilliant blue waterfalls. It’s also why water is so easily polluted. Toxic substances from farms, towns, and factories readily dissolve into and mix with it, causing water pollution.
Categories of Water Pollution
Groundwater
When rain falls and seeps deep into the earth, filling the cracks, crevices, and porous spaces of an aquifer (basically an underground storehouse of water), it becomes groundwater—one of our least visible but most important natural resources. Nearly 40 percent of Americans rely on groundwater, pumped to the earth’s surface, for drinking water. For some folks in rural areas, it’s their only freshwater source. Groundwater gets polluted when contaminants—from pesticides and fertilizers to waste leached from landfills and septic systems—make their way into an aquifer, rendering it unsafe for human use. Ridding groundwater of contaminants can be difficult to impossible, as well as costly. Once polluted, an aquifer may be unusable for decades, or even thousands of years. Groundwater can also spread contamination far from the original polluting source as it seeps into streams, lakes, and oceans.
Surface water
Covering about 70 percent of the earth, surface water is what fills our oceans, lakes, rivers, and all those other blue bits on the world map. Surface water from freshwater sources (that is, from sources other than the ocean) accounts for more than 60 percent of the water delivered to American homes. But a significant pool of that water is in peril. According to the most recent surveys on national water quality from the U.S. Environmental Protection Agency, nearly half of our rivers and streams and more than one-third of our lakes are polluted and unfit for swimming, fishing, and drinking. Nutrient pollution, which includes nitrates and phosphates, is the leading type of contamination in these freshwater sources. While plants and animals need these nutrients to grow, they have become a major pollutant due to farm waste and fertilizer runoff. Municipal and industrial waste discharges contribute their fair share of toxins as well. There’s also all the random junk that industry and individuals dump directly into waterways.
1.Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment. For example, releasing inadequately treated wastewater into natural water bodies can lead to degradation of aquatic ecosystems. In turn, this can lead to public health problems for people living downstream.
ReplyDelete2.Humans are the main cause of water pollution, which is triggered in many ways: by the dumping of industrial waste; due to temperature rise, that cause the alteration of water by reducing the oxygen in its composition; Or due to deforestation, which causes sediments and bacteria to appear under the soil and therefore contaminate groundwater.
https://www.activesustainability.com/water/causes-consequences-water-pollution/
Hi, my name is Dom from Doral Academy of Colorado. I agree that this is a very serious problem. Do you have to drink water from your tap or bottled water? Write back when you get a chance.
DeleteHello, Dom! In my family we use bottled water.Some people use tap water, but it is not very clean and it is not very useful. Most people buy bottled water for drinking.
DeleteWater pollution is any chemical, physical or biological change in the quality of water that has a harmful effect on any living thing that drinks or uses or lives (in) it. When humans drink polluted water it often has serious effects on their health. Water pollution can also make water unsuited for the desired use.
ReplyDeleteWater pollution is usually caused by human activities. Different human sources add to the pollution of water. There are two sorts of sources, point and nonpoint sources. Point sources discharge pollutants at specific locations through pipelines or sewers into the surface water. Nonpoint sources are sources that cannot be traced to a single site of discharge.
Examples of point sources are: factories, sewage treatment plants, underground mines, oil wells, oil tankers and agriculture.
Read more: https://www.lenntech.com/water-pollution-faq.htm#ixzz5Xqm6yZZB
Natural chemicals are found everywhere in the environment. Unfortunately, many of the chemicals that are produced by industries are not found naturally in the environment or are only found in very small amounts. Different industrial processes produce different types of products and waste products. Unfortunately many industries release their waste products directly into rivers or let them leak into the groundwater. These chemicals are poisonous or toxic to plants, animals and people. Some examples are:
1. Insecticides
Insecticides are chemicals that are sprayed onto crops to kill the insects that eat crops.
2. Heavy Metals
Heavy metals such as nickel, molybdenum, zinc, cadmium and lead are mined and processed by the mining and ore-smelting industries, many of which occur in Gauteng. These metals are easily washed into streams and groundwater.
3. Problem Products
We all know about the destruction that oil pollution causes along the marine coastline. However, a lot of oil pollution also occurs inland. Petrol and diesel is stored in underground tanks at petrol depots.
4. Chlorine and Detergents
Paper and pulp mills and textile factories are amongst the worst water polluters. Paper and pulp mills use up large amounts of water and produce a lot of polluted wastewater.
Ten Things You Can Do To Reduce Water Pollution
“Just because it disappears, doesn’t mean it goes away”
DO NOT pour fat from cooking or any other type of fat, oil, or grease down the sink. Keep a “fat jar” under the sink to collect the fat and discard in the solid waste when full.
DO NOT dispose of household chemicals or cleaning agents down the sink or toilet.
DO NOT flush pills, liquid or powder medications or drugs down the toilet. For recommendations on proper disposal for all types of medical wastes, visit the CT DEP publication here.
Avoid using the toilet as a wastebasket. Most tissues, wrappers, dust cloths, and other paper goods should be properly discarded in a wastebasket. The fiber reinforced cleaning products that have become popular should never be discarded in the toilet.
Avoid using a garbage disposal. Keep solid wastes solid. Make a compost pile from vegetable scraps.
Install a water efficient toilet. In the meantime, put a brick or 1/2 gal container in the standard toilet tank to reduce water use per flush.
Run the dishwasher or clothes washer only when you have a full load. This conserves electricity and water.
Use the minimum amount of detergent and/or bleach when you are washing clothes or dishes. Use only phosphate free soaps and detergents.
Minimize the use of pesticides, herbicides, fertilizers. DO NOT dispose of these chemicals, motor oil, or other automotive fluids into the sanitary sewer or storm sewer systems. Both of them end at the river.
If your home has a sump pump or cellar drain, make certain it does not drain into the sanitary sewer system.
http://www.waterwise.co.za/site/water/environment/substances.html
https://www.simsbury-ct.gov/water-pollution-control/pages/ten-things-you-can-do-to-reduce-water-pollution
Today it is no secret to anyone that sad truth is our planet is in danger, and plants and animals have to survive in the conditions of anthropogenic pollution. In even photographs, appearing in the press from time to time, are not capable of conveying the seriousness and extent of the problem of pollution. In this review, little-known and shocking facts that make it possible to understand the seriousness of the problem.
ReplyDeleteRoma Musiienko
Ukraine Kyiv
http://xn--b1amnebsh.ru-an.info
Because of India’s lax environmental regulations, industries along the river release chemicals and other poisonous material into the Ganges. In some places they are a thousand times over the allowed limit. Especially India’s traditional leather industry needs great amounts of water. In addition, fertilizers from the fields find their way into the ground water, and ultimately flow into the river. Altogether, the amount of industrial pollution has doubled in the past 20 years.
ReplyDeleteThis widespread pollution of the Ganges River has also led to major health problems. Many diseases are common, including cholera, hepatitis and diarrhea.
While India’s population keeps growing, more and more people are leaving the countryside and moving to big cities along the Ganges. As a result, the river will not be able to cope with even more people.
Life in the river is also at risk. Recent reports have shown that there is a high level of mercury in some fish. The construction of dams is destroying forests and vegetation, killing off many animal and plants.
Indian authorities are fighting an upward battle towards cleaning up the Ganges River. International organizations have offered help. The World Bank has agreed to give India a loan of up to a billion dollars to clean up the Ganges River.
https://www.english-online.at/news-articles/environment/ganges-river-pollution.htm
1. Water is uniquely vulnerable to pollution. Known as a “universal solvent,” water is able to dissolve more substances than any other liquid on earth. It’s the reason we have Kool-Aid and brilliant blue waterfalls. It’s also why water is so easily polluted. Toxic substances from farms, towns, and factories readily dissolve into and mix with it, causing water pollution.
ReplyDelete2. Firstly, the disappearance of biodiversity and aquatic ecosystems. Also, humans are harmed by the alteration in the food chain and by contracting illnesses when drinking or using contaminated water. As you can see, water pollution has a great impact in the environment.
Look this video https://youtu.be/71IBbTy-_n4
DeleteHello! My name is Adria, I’m from Doral Academy of Colorado. I really enjoyed your post, it had good information! Here are somethings I found about the beautiful Dnieper River. The Dnieper river is one of three rivers that discharge pollution and it is dying due to excessive water extraction. Also there is a huge risk of flooding because the dams are failing, due to weak material. Is it true that Dnieper is an imoratant source of drinking water in Ukraine? I found this page and i think it might be helpful.
https://www.canadianconsultingengineer.com/features/identification-of-pollution-sources-in-the-dnieper-river-basin/
Thanks for you time Dasha Shylko
Thank you very much! Your information was very important. Especially: "Identification and analysis of Sources of Pollution developed an effective, efficient and practical methodology of screening. As a result of the preliminary screening, a list of 130 enterprises was compiled as major polluters." Write me back about your work.
DeleteAlso the Dnieper is important for Kyiv, but we drink from the River Desna, which, by the way is the inflow of the Dnieper River.
Delete“The River Thames is the cleanest river in the world that flows through a major city. This is a major feat considering that fifty years ago the river was so polluted that it was declared
ReplyDeletebiologically dead. … Sewage was being discharged directly into the Thames.”
90% of London’s water comes from The Thames
Tens of thousands of people died of Cholera
Dom , Doral Colorado
Dnieper River (pollution)
ReplyDeleteBy Adria and Maddie G
Doral Academy, Colorado
One of the rivers that discharge pollution
It is dying due to excessive water extraction
There is a major risk of the towns near by flooding
Utilities, ferrous, and nonferrous metallurgy
Important source of drinking water in Ukraine
Deteriorated because of pollution from many sources
There is no systematic data about the nature around it
The Dnieper has pollution “Hotspots” of pollution rather than the whole river
They have prioritized 20 “hotspots” in three countries where the pollution is the worst
The sources of pollution are too many to define the main cause of the pollution
Every year, new sources of pollution of the Dnieper River threaten to destroy the main nutrient artery of Ukraine. Discharge of sewage, industrial effluents, building banks narrowing the course and deforming the bottom of the appearance of atypical microorganisms, changing the chemical composition of water. Industrial waste dumps about 300 enterprises, some do not always legitimately overestimate the limits on dumping. Radioactive contamination of sludge with cesium-137 and strontium-90 located at the bottom of the Kiev reservoir since the time of the Chernobyl disaster. Discharge of poorly cleaned on outdated sewage treatment equipment of urban sewage.
ReplyDeletehttps://watertechnologies.com.ua/stati/istochniki-zagryazneniya-reki-dnepr
Volodya Kyrychenko, Kyiv, Ukraine
Concentrations of total dissolved solids (salinity) in Colorado River basin streams are identified as a major problem for lower basin water users. Salinity concentrations in unregulated streams of the basin comprise two distinct populations that are grouped into base flow months and runoff months. Statistically significant increases in salinity have occurred with increasing water use, and in downstream progression. Upper basin salt load contributions are: runoff, 52 percent; irrigated agriculture, 37 percent; natural point sources and flowing wells, 9 percent; and municipal and industrial, 7 percent. Lower basin contributors are: upper basin inflow, 72 percent; natural point sources, 15 percent; irrigated agriculture, 9 percent; runoff, 4 percent; and municipal and industrial, less than 1 percent. Salt yields from irrigated lands range from near 0 to 8.5 tons/yr/acre (3,120 kg/yr/ha). Greatest yields are from irrigation of and runoff from lands underlain by Mancos shale and Tertiary lake beds. Headwater areas yield predominantly calcium bicarbonate waters. Saline sediments in lower valleys cause waters to become predominantly high in sodium calcium sulfate ions.
ReplyDeleteRoma Musiienko
Ukraine Kyiv
https://www.jstor.org/stable/25037925?seq=1#page_scan_tab_contents
Causes of Water Pollution
ReplyDeleteWater pollution is caused due to several reasons. Here are the few major causes of water pollution:
Sewage And Waste Water: Sewage, garbage and liquid waste of households, agricultural lands and factories are discharged into lakes and rivers.
Dumping: Dumping of solid wastes and litters in water bodies causes huge problems. Litters include glass, plastic, aluminum, styrofoam etc.
Industrial Waste: Industrial waste contains pollutants like asbestos, lead, mercury and petrochemicals which are extremely harmful to both people and environment.
Oil Pollution: Sea water gets polluted due to oil spilled from ships and tankers while traveling. The spilled oil does not dissolve in water and forms a thick sludge polluting the water.
Acid Rain: Acid rain is pollution of water caused by air pollution. When the acidic particles caused by air pollution in the atmosphere mix with water vapor, it results in acid rain.
Global Warming: Due to global warming, there is an increase in water temperature. This increase in temperature results in death of aquatic plants and animals. This also results in bleaching of coral reefs in water.
Eutrophication: Eutrophication is an increased level of nutrients in water bodies. This results in bloom of algae in water. It also depletes the oxygen in water, which negatively affects fish and other aquatic animal population.
The consequences of water pollution
Death of aquatic (water) animals
The main problem caused by water pollution is that it kills organisms that depend on these water bodies.
Disruption of food-chains
Pollution disrupts the natural food chain as well. Pollutants such as lead and cadmium are eaten by tiny animals. Later, these animals are consumed by fish and shellfish, and the food chain continues to be disrupted at all higher levels.
Diseases
Eventually, humans are affected by this process as well. People can get diseases such as hepatitis by eating seafood that has been poisoned.
Destruction of ecosystems
Ecosystems (the interaction of living things in a place, depending on each other for life) can be severely changed or destroyed by water pollution. Many areas are now being affected by careless human pollution, and this pollution is coming back to hurt humans in many ways.
Read more here:
1.http://eschooltoday.com/pollution/water-pollution/effects-of-water-pollution.html
2. https://www.commonfloor.com/guide/what-are-the-major-causes-of-water-pollution-in-india-27741.html (that one tells about India, but the situation in general is similar)
Anna Chepurna,Ukraine
ReplyDelete1. Industrial waste, sewage and waste water, mining activities, accidental Oil leakage and other( https://www.conserve-energy-future.com/sources-and-causes-of-water-pollution.php )
2. The main problem caused by water pollution is that it kills organisms that depend on these water bodies. Dead fish, crabs, birds and sea gulls, dolphins, and many other animals often wind up on beaches, killed by pollutants in their habitat (living environment).Pollution disrupts the natural food chain as well. Pollutants such as lead and cadmium are eaten by tiny animals. Later, these animals are consumed by fish and shellfish, and the food chain continues to be disrupted at all higher levels. Read more: http://eschooltoday.com/pollution/water-pollution/effects-of-water-pollution.html
The Colorado was a clean river, until The 2015 Gold King Mine waste water spill was an environmental disaster that began at the Gold King Mine near Silverton, Colorad.
ReplyDeletePeople wanted to get rich, but they don't think about river pollution.
The employers didn't sleep, and at one time they built hotels near the river, and made huge money
1.Water is uniquely vulnerable to pollution. Known as a “universal solvent,” water is able to dissolve more substances than any other liquid on earth. It’s the reason we have Kool-Aid and brilliant blue waterfalls. It’s also why water is so easily polluted. Toxic substances from farms, towns, and factories readily dissolve into and mix with it, causing water pollution. (https://www.nrdc.org/stories/water-pollution-everything-you-need-know)
ReplyDelete2.What are the main consequences of water pollution? Firstly, the disappearance of biodiversity and aquatic ecosystems. Also, humans are harmed by the alteration in the food chain and by contracting illnesses when drinking or using contaminated water. As you can see, water pollution has a great impact in the environment.
(https://www.activesustainability.com/water/causes-consequences-water-pollution/)
watercourse and water bodies in quantities or combinations that impair the quality of water and cause adverse effects, as well as the ingress of various dirt into rivers, lakes, and groundwater.
ReplyDeleteEmissions of sewage or cattle that are not treated also lead to water pollution in the same way as fertilizers. Human wastewater also contains microcosms that cause diseases such as hepatitis and cholera. ... Natural chemicals can cause clogging of problems similar to those caused by the crop.
ReplyDeleteHumans are the main cause of water pollution, which is triggered in many ways: by the dumping of industrial waste; due to temperature rise, that cause the alteration of water by reducing the oxygen in its composition; Or due to deforestation, which causes sediments and bacteria to appear under the soil and therefore contaminate groundwater. In the same way, the pesticides used in agricultural fields filter through underground channels and reach the consumption networks; And also as a result of accidental spillage of oil.
https://www.activesustainability.com/water/causes-consequences-water-pollution/
Generally, rivers are the main source of life because they provide fresh water, which is critical for survival of both flora and fauna. The uniqueness of rivers is that they provide homes to fishes, reptiles, mammals and amphibians. For this reason, the conservation of rivers is needed since the cycle of the ecosystem is dependent on it. However, there has been massive global pollution on rivers thereby causing a shift in the ecosystem. This has been caused by the increased pressure on the water bodies and the rapid increase in human population.
ReplyDeleteMoreover, the releases of toxic wastes from industries, urban centers, and agricultural pollution have saturated rivers with pollutants resulting in serious water problems such as the lack of clean drinking water.
https://www.conserve-energy-future.com/most-polluted-rivers-world.php
Dom, Doral Academy, Colorado
ReplyDeleteThe River Thames is the cleanest river in the world that flows through a major city. This is a major feat considering that fifty years ago the river was so polluted that it was declared
biologically dead. … Sewage was being discharged directly into the Thames.”
90% of London’s water comes from The Thames
Tens of thousands of people died of Cholera
http://www.primaryhomeworkhelp.co.uk/riverthames/pollution.htm
http://www.primaryhomeworkhelp.co.uk/riverthames/industry.htm
Dnieper River (pollution)
ReplyDeleteBy Adria and Maddie G
Doral Academy, Colorado
One of the rivers that discharge pollution
It is dying due to excessive water extraction
There is a major risk of the towns near by flooding
Utilities, ferrous, and nonferrous metallurgy
Important source of drinking water in Ukraine
Deteriorated because of pollution from many sources
There is no systematic data about the nature around it
The Dnieper has pollution “Hotspots” of pollution rather than the whole river
They have prioritized 20 “hotspots” in three countries where the pollution is the worst
The sources of pollution are too many to define the main cause of the pollution
Oil Pollution by Oil Industries
ReplyDeleteRoutine shipping, run-offs and dumping of oils on the ocean surfaces happen every day. Oil spills make up about 12% of the oil that enters the ocean. Oil spills cause major problems, and can be extremely harmful to local marine wildlife such as fish, birds and sea otters and other aquatic life. Because oil does not dissolve, it stays on the water surface and suffocates fish. Oil also gets caught in the feathers of seabirds, making it difficult for them to fly. Some animals die as a result.
http://eschooltoday.com/pollution/water-pollution/industrial-causes-of-water-pollution.html
9-A
ReplyDeleteDasha Zhavoronkova
The main causes of water pollution in the Ganges river are the increase in the population density, various human activities such as bathing, washing clothes, the bathing of animals, and dumping of various harmful industrial waste into the rivers.
https://sites.google.com/site/waterquality101/home/affects-of-rainwater-run-off
Generally, rivers are the main source of life because they provide fresh water, which is critical for survival of both flora and fauna. The uniqueness of rivers is that they provide homes to fishes, reptiles, mammals and amphibians. For this reason, the conservation of rivers is needed since the cycle of the ecosystem is dependent on it. However, there has been massive global pollution on rivers thereby causing a shift in the ecosystem. This has been caused by the increased pressure on the water bodies and the rapid increase in human population.
ReplyDeletehttps://www.conserve-energy-future.com/most-polluted-rivers-world.php
Anastasia Volovik
ReplyDelete9-A
There are many causes for water pollution. The main one is plastics. The reason for that is that plastics take four hundred and fifty years to decompose in the water. Also many companies use plastic and people throw it in the waterways.
Such waste includes bags, bottles, cups, straws, cup lids, six pack holders, cling wrap, fishing line, bait bags, and floats.
The second highest cause of water pollution is ship waste. Ships used to take much garbage with them on their ships and dump them. Water is our main source of our life. We need it to live, drink, bathe, recreation, manufacturing, and power. We need water for almost everything, if we don't start cleaning up we will be in big trouble.
https://www.bartleby.com/essay/Causes-and-Effects-of-Water-Pollution-P39QTYYVC
We know that pollution is a human problem because it is a relatively recent development in the planet's history: before the 19th century Industrial Revolution, people lived more in harmony with their immediate environment. As industrialization has spread around the globe, so the problem of pollution has spread with it. When Earth's population was much smaller, no one believed pollution would ever present a serious problem. It was once popularly believed that the oceans were far too big to pollute. Today, with around 7 billion people on the planet, it has become apparent that there are limits. Pollution is one of the signs that humans have exceeded those limits.
ReplyDeleteZhitchenko Vlad.
The River Thames, known alternatively in parts as the Isis, is a river that flows through southern England including London. At 215 miles (346 km), it is the longest river entirely in England and the second longest in the United Kingdom, after the River Severn. It flows through Oxford (where it is called the Isis),
ReplyDeleteFACTS ABOUT THAMES RIVER It’s part of the longest river in England, it has 45 locks, is home to over 25 species of fish, boasts three areas of outstanding natural beauty and it’s the only river in Europe to have a national trail follow its entire length. Starting as a small trickle in the Cotswolds the River Thames travels over 210 miles through the heart of some of England’s most picturesque towns, right into the center of London and eventually, out into the North Sea.
Nobody knows exactly what ‘Thames’ even means – The Middle English word Temese is derived from the Celtic name Tamesas for this river. As for where the name comes from – is thought that the name meant the word ‘dark’ or ‘muddiness.’
POLLUTION IN RIVER THAMES The River Thames is the cleanest river in the world that flows through a major city. This is a major feat considering that fifty years ago the river was so polluted that it was declared biologically dead.
From1830 to 1860 tens of thousands of people died of cholera as a result of the pollution in the Thames. Sewage was being discharged directly into the Thames. Despite the foul smell, people continued to wash and bathe and drink from the river. In 1855, a letter from Michael Faraday in The Times newspaper, London, described the polluted state of the River Thames he had observed on a boat trip: "The whole of the river was an opaque pale brown fluid. ....... surely the river which flows for so many miles through London ought not to be allowed to become a fermenting sewer
THANK YOU
NAME SIDDHARTH RANA
CLASS VIII
Ecology of River Thames
ReplyDeleteThe river Thames longest in England which is 215 miles and important trade route through its history, but because of being largest river people just jump into it, because of which 50 people die in this river due to suicide. Thames means 'dark' or 'muddiness'. The rare breed of seahorse, short snouted seahorse is found in this river. This river is not only Thames as when it stretches till Oxford its name changes to Iris.
The river Thames which is 2nd largest in United Kingdom was much more larger, longer and bigger centuries ago but when the temperature of London plummeted the river freeze and due to the same reason in harsh winter the river freezes totally.
Apurv Semwaal
Class-VII
K.R.Mangalam World School
.