All around the world, countries are fighting to keep their drinking water clean. Whether it’s streams, rivers, or lakes, countries have taken great measures to maintain high quality drinking water for both human consumption and animal consumption. Countries must first understand the sources of the polltion, then determine the best methods to eliminate the pollution. Clean drinking water is a valuable resource and a the key to human survival. Plants and animals also depend on water for their growth, so all water must be kept clean. The major contributors to water pollution can be classified in three categories, industrial, agricultural and municipal.
Examples of industrial wastes that can ...view middle of the document...
Third, the waste water can be treated within the plant and recycled again, or treated in the plant and released.
Another form of industrial waste that contributes to water pollution is acid rain. Acid rain is a product of industries burning coal. The burning of coal produces sulfur oxide and nitrogen oxide, and when these chemicals combine with the earth’s atmosphere it forms acid rain The Northeastern part of the United States has the worst acid rain levels in the world. More specific, the states with the highest concentration are Ohio, Indiana, Illinois, and some boarding parts of Canada and New England area. The falling acid rain can destroy plants and animals in several different ways. The acidification of a lake, river, or stream because of the high acidic levels in the water kills algae. Since algae are the main source of food, for many species of fish, they will also suffer from the high acid levels.
Acid rain also soaks into ground and dissolves nutrients from the soil. When the plants call upon these nutrients to grow, the absence kills the vegetation. Over a short period of time plants begin to die, harming surrounding animal life.
The second main category is agricultural pollution. This type of pollution occurs when erosion of crop land dispenses sediments into nearby streams, affecting the clarity of the water and killing the food source of the fish. Another form of agricultural pollution is field run- off. It is caused when a farmer spreads animal wastes and fertilizers onto fields to replenish the lost nutrients, the waste contains high levels of nitrogen. This nitrogen, an oxygen-robbing agent, will deprive the water of its oxygen, causing harm to the plants living in and near the water.
The third major source of contamination is municipal wastes. These wastes include household...