Radionucleides originate from natural sources due to leaching from minerals. Radioactive materials enter human body through water and food, and may be accumulated in blood and certain vital organs. They cause tumours and cancer.
WATER POLLUTION and CONTROL
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The sewage contains garbage, soaps, detergents, waste food and human excreta and is the single largest sources of water pollution.. Pathogenic microogranisms like bacteria,
• Eutrophication of a water body results due to the release of large amount of nutrients by the action of aerobic bacteria on organic wastes entering a water body naturally or
The pH is an important variable in water quality assessment as it influences many biological and chemical processes within a water body and all processes associated with water
Carbon dioxide (CO 2 ) is highly soluble in water and atmospheric CO 2 is absorbed at the air-water interface. CO 2 is produced within water bodies by the respiration of
Boron.. Cyanides occur in waters in ionic form or as weakly dissociated hydrocyanic acid. In addition, they may occur as complex compounds with metals. The toxicity of
The increase in concentration of accumulated toxic chemicals as one goes higher in the food chain is termed biomagnification.. Biomagnification has at times threatened the
• Unicellular green and blue algae and floating filamentous algae in entrophic conditions.. • The effect is to cause adverse conditions for river and canal craft navigation, and
• Flue gas desulphurisation is based on using limestone to absorb the sulphur dioxide and is one of the most effective methods of removal.. EPA Information, Acid Rain-Why it’s
