4. Effects of Water Pollution
Water pollution has a duel effect on nature. It has negative effects on the living and also on the environment.
The effects of pollution on human beings and aquatic communities are many and varied. Water pollution
causes approximately 14,000 deaths per day, mostly due to contamination of drinking water by untreated
sewage in developing countries. An estimated 700 million Indians have no access to a proper toilet, and
1,000 Indians children’s die of diarrhea every day and so many other countries too. Nearly 500 million
Chinese lack access of safe drinking water.
Definitely with all these, we can expect that there is going to be a reduction in productivity. Biomas and
diversity of communities are to be expected when large amount of toxic materials are released into the
streams, lakes and coastal waters in the ocean. Much of aquatic pollution involves sewage in which organic
waste predominate. This waste can increase secondary productivity while altering the character of the
aquatic community. Most fishes especially the species desired as food by man are among the sensitive
species that disappear with the least intense pollution.
Water pollution leads to damage to human health. Disease carrying agents such as bacteria and
viruses are carried into the surface and ground water. Drinking water is affected and health hazards result.
Direct damage to plants and animals nutrition also affects human health. Plants nutrients including nitrogen,
phosphorus and other substances that support the growth of aquatic plant life could be in excess causing
algal gloom and excessive weed growth. This makes water to have odour, taste and sometimes colour.
Ultimately, the ecological balance of a body of water is altered. Sulphur dioxide and nitrogen oxides cause
acid rain which lowers the PH value of soil and emission of carbon dioxide cause ocean acidification, the
ongoing decrease in the PH of the Earth’s Oceans as CO2 becomes dissolved.
4. Effects of Water Pollution
Water pollution has a duel effect on nature. It has negative effects on the living and also on the environment.
The effects of pollution on human beings and aquatic communities are many and varied. Water pollution
causes approximately 14,000 deaths per day, mostly due to contamination of drinking water by untreated
sewage in developing countries. An estimated 700 million Indians have no access to a proper toilet, and
1,000 Indians children’s die of diarrhea every day and so many other countries too. Nearly 500 million
Chinese lack access of safe drinking water.
Definitely with all these, we can expect that there is going to be a reduction in productivity. Biomas and
diversity of communities are to be expected when large amount of toxic materials are released into the
streams, lakes and coastal waters in the ocean. Much of aquatic pollution involves sewage in which organic
waste predominate. This waste can increase secondary productivity while altering the character of the
aquatic community. Most fishes especially the species desired as food by man are among the sensitive
species that disappear with the least intense pollution.
Water pollution leads to damage to human health. Disease carrying agents such as bacteria and
viruses are carried into the surface and ground water. Drinking water is affected and health hazards result.
Direct damage to plants and animals nutrition also affects human health. Plants nutrients including nitrogen,
phosphorus and other substances that support the growth of aquatic plant life could be in excess causing
algal gloom and excessive weed growth. This makes water to have odour, taste and sometimes colour.
Ultimately, the ecological balance of a body of water is altered. Sulphur dioxide and nitrogen oxides cause
acid rain which lowers the PH value of soil and emission of carbon dioxide cause ocean acidification, the
ongoing decrease in the PH of the Earth’s Oceans as CO2 becomes dissolved.
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