se effect, and depletes the ozone. Reactive nitrogen is so high in the developed world that we re polluting ourselves out of clean air, drinking water, and biodiversity
3) Phosphorus (P) - behavior in water is as a fertilizer, accelerating plant and algae growth. When plants and algae die, bacteria consume oxygen that is dissolved in the water. When this happens, less oxygen is available for fish and aquatic life that need oxygen to survive. Excess phosphorus in drinking water is difficult to remove, and also can require an increase in treatment chemicals which adds cost.
4) FertilizersГЅ - consist of three primary plant nutrients:
nitrogen and phosphorous with smaller amounts of potassium. The first two are the most important as pollutants. Nitrogen fertilizers containing nitrates can contaminate groundwater because nitrates are highly soluble in water. At high levels, nitrates can poison humans, particularly children. Lower levels of nitrates can also be deadly to amphibians. Certain forms of nitrogen are released as gases, contributing to acid rain and climate change. Rainwater runoff brings fertilizers into streams, rivers, lakes and oceans.
5) Pesticides - are mostly modern chemicals. There are many hundreds of these compounds, and extensive tests and studies of their effect on humans have not been completed. That leads us to ask just how concerned we should be about their presence in our drinking water. Certainly it would be wise to treat pesticides as potentially dangerous and, thus, to handle them with care.
Ways to reduce the impact
Firstly, 3 countries which are bounded with Victoria Lake: Uganda, Kenya and Tanzania must make some rules to reduce sewage pollution. They must perform the methods below. p align="justify"> The main problem of Lake Victoria is the wastewater from sewage. To reduce it we should use this methods:
a) We should treat sewage water before its release into rivers, after that most problems associated with pollution would be solved. Removal of contaminants is the main objective of treatment of sewage water. Before the actual treatment of water, effluents are pretreated.The process of pre-treatment helps in the separation of oils, greases, gravel and sand from polluted water. This process is carried out by filtration of sewage water.) The third method is: biological wastes dissolved i...
