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Industrial discharges contain Lead, arsenic, Mercury, Cadmium etc., which pose deleterious impacts in life systems Lead – damages liver and kidney Arsenic – lung cancer, ulcers in gast[r]
(1)Water Pollution 10/04/21 (2) Introduction Water pollution is the contamination of water bodies(e.g lakes, rivers, oceans, aquifers and groundwater) This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels (3) Current Situation Water pollution is the leading worldwide cause of deaths and diseases: it accounts for the deaths of more than 14,000 people daily An estimated 580 people in India die of water pollution related illness every day About 90 percent of the water in the cities of China is polluted As of 2007, half a billion Chinese had no access to safe drinking water in the most recent national report on water quality in the United States, 45 percent of assessed stream miles, 47% of assessed lake acres, and 32 percent of assessed bays and estuarine square miles were classified as polluted (4) Causes (5) Effects Sewage and domestic wastes effect human health resulting diseases such as cholera, typhoid, dysentery Industrial discharges contain Lead, arsenic, Mercury, Cadmium etc., which pose deleterious impacts in life systems Lead – damages liver and kidney Arsenic – lung cancer, ulcers in gastro intestinal tract Cadmium – diarrhea, kidney cysts, bone deformation etc Mercury – Neurological disorders Agricultural discharges include fertilizers, pesticides which are toxic to both aquatic and human life (6) 10/04/21 (7) 10/04/21 (8) 10/04/21 (9) Prevention and Control Sewage treatment plants Integrated approach and organic farming Ideal maintenance of plant upkeep in Industries Management and legislation – CPCB Water treatment Primary treatment involves coagulation and flocculation Secondary treatment involves disinfection process Information dissemination through sensitization programs (10) Thanks for watching! (11)