Sources of Water Pollution
You may not be aware of it, but water pollution effects can come from rain and melting snow. Its called “polluted run-offs" simply because water that poured down from the skies go to streams, rivers, estuaries, lakes, and other bodies of water while passing through land. The water run-offs become polluted as they carry different wastes that man had carelessly disposed of on the ground.
Man uses pesticides, oil, detergent soap and other cleaning materials in considerable quantities and studies show that they eventually get carried off into bodies of natural water.
Agricultural sites are also sources of water pollution because pesticides and fertilizers used in considerable amounts, eventually run off to nearby rivers. Farm run-offs affect the environment, and this was disclosed when a vast area in the Gulf of Mexico was declared as a “dead zone". The accumulation of algae formed from run-off wastes has smothered marine life . Excessive algae results to low levels of oxygen in these parts of the water.
Previous studies conducted by some university students showed that for the past 50 years, farms have been pumping fertilizer and animal manure run-offs, into rivers and streams. They are sources of water pollution that contain substantial amounts of carbon dioxide.
The U.S. Geological Survey report has linked the states of Arkansas, Illinois, Indiana, Iowa, Kentucky, Mississippi, Missouri, Ohio, and Tennessee as responsible for these farm run-off pollutions. The water pollution effects in the rivers and streams of Mississippi show high levels of acidity due to the carbon dioxide contributed by these water pollution sources. As a result, water pollution and fish life disruption and the destruction of coral growths in the nearby ocean have taken place.