Water Pollution

Water pollution is any chemical, physical or biological change in the quality of water that has a harmful effect on any living thing that drinks or uses or lives (in) it. When humans drink polluted water it often has serious effects on their health. Water pollution can also make waterunsuited for the desired use.

Main Causes of Water Pollution

1. Industrial waste

2. Sewage and waste water

3. Mining activities

4. Marine dumping

5. Accidental Oil leakage

6. Burning of fossil fuels

7. Chemical fertilizers and pesticides

8. Leakage from sewer lines

10. Radioactive waste

11. Urban development

12. Leakage from the landfills

13. Animal waste

14. Underground storage leakage


The Citarum river is one of the most polluted rivers in the entire world. It is located in Indonesia. It has been called the world's most polluted river. Around 5 million people live in the river's basin, and most of them rely on its flow for their water supply. Heavy pollution of river water by household and industrial waste in the Indonesian province of West Java is threatening the health of at least five million people living on the riverbanks, say government officials and water experts.

Poor sanitation and hygiene cause 50,000 deaths annually in Indonesia, with untreated sewage resulting in over six million tons of human waste being released into inland water bodies.