Pesticidesdecrease biodiversity in the soilbecause they do not just kill the intended pest; they often kill many of the other small organisms present. When life in the soil is killed off,the soil quality deteriorates and this has a knock-on effect upon the retention of water.
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How do pesticides pollute the environment?
In the US pesticides pollution has been found in nearly every lake, river and stream, according to a US Geological Survey in the 1990s. Other nations are affected badly, too. Pesticides cause pollution by running off agricultural fields and from horticultural land and domestic gardens, too.
What are the causes of soil pollution?
Excessive and inefficient use of chemical pesticides can result in severe soil pollution. Sewage produced in urbanized areas can also contaminate soil (if not disposed of correctly). These wastes may also contain several carcinogenic substances. Other forms of waste that can pollute soil include nuclear waste, e-waste, and coal ash.
How do chemicals affect the quality of soil?
These chemicals enter in the soil and deteriorate its quality. Acid rain, which is caused by air pollution, deposits acids in the soil through water runoffs. The acids are particularly harmful to the soil.
What are the bad effects of pesticides?
Pesticides cause pollution by running off agricultural fields and from horticultural land and domestic gardens, too. Rain water washes the chemicals into nearby water sources. Here are some of the bad effects of pesticides. Picture: Rivers and other water sources may be affected by pesticides. Flooding may cause additional problems.