Water covers more than 70% of the earth, water is one of the most precious natural resources of our planet . the reason being that about 97% of total water is salty, and therefore not portable, a further 2% is locked of it useful for consumption. Apart from clean drinking of it useful for consumption. Apart from clean drinking water, we also need to keep the water in the oceans rivers and lakes unpolluted because other wise , it harm the very planet we survive on. However, with human pollution increasing rapidly and industrialization, water resources all over the world are getting polluted, so much so, that precious and unique organisms and ecosystems are being harmed and even going extinct at an alarming rate
DEFINITION of Water pollution: This is an undesirable change in the state of water, contaminated with harmful substances it is the second most important environmental issue next to air pollution. Any change in the physical, chemical and biological properties of water that has harmful all the major water bodies of the world such as lakes , rivers, ocean and ground water
SOURCES OF WATER POLLUTION
The major source of water pollution include
– Domestic wastes (SEWAGES) Discharges
– Industrial effluent
– Agricultural waste
– Oil / chemical spill
– Marine dumping (garbage discharge)etc
– Point source : discharged from a discrete location
– Non point – non location
EFFECTS OF WATER POLLUTION ON MARINE LIFE
· Deoxygenating of water rand animate flora and fauna in streams, lake, river
· Enhance the growth of bacteria in water and increase the concentration
· Affects the whole ecosystem
· Effects on human animal
· Animals / human consumes polluted floral fauna in polluted water, which can cause diseases to them it can also lead to cancer ad diarrhea
GENERAL PREVENTION OF WATER POPULATION
· Treat sewage before disposal
· Oil sucks shoved be skimmed off from the surface with suction device
· Avoid dumping of waste into the water bodies.
· Ill effect of sewage polluted water pathogens present in the water spread many different diseases .
THE MAJOR SOURCE OF WATER POLLUTION
From melbourne operation includes soil and chemical discharge
Sewage Discharge
Garbage’s water pollution
Transportation of oil
Discharge of waste /sewage
Tank overflow
Tank leakage
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