Water pollution
- Any chemical, physical or biological change in water quality that adversely affects living organisms or makes water unsuitable for any desired uses.
- Water pollution almost always means that some damage has been done to an ocean, river, lake, or other water source.
- Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging either to individual species and populations, but also to the natural biological communities.
- Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds.
Causes Of Water Pollution
1) Domestic waste water
2) Solid waste
3) Industrial waste
4) Increase in use of agro chemicals
5) Improper management of landfill site, mining activities
6) Chemical waste
7) Radioactive waste
8) Oil pollution
9) Nutrients
10) Plastics
11) Alien species
Sources of water pollution
- Sewage and household waste
- Industrial sources
- Muncipal waste
- Agricultural sources
- Radioactive wastes
- Chemical wastes
- Thermal sources
- Other
Control measures
1) Reduce need of fertilizers reducing fertilizer run off
2) Reduce use of pesticides
3) Discharge industrial and municipal effluents only after the treatment
4) Prevent run off manure to the water sources
5) Separate drainage of sewage and drinking water
6) Adopt IPM to reduce reliance on pesticides
7) Establish water quality monitoring, standard and treatment system
8) Planting trees help to reduce water pollution
9) Awareness program and waste water treatment