1. Pollutant or wastewater should be treated before it is discharged into the river or ocean.
2. More and more waste and dumped sewage are poured into the water, the soil and the air.
3. The contaminated material is stored in a special radiation-proof Container.
4. Oil spills can cause the death of aquatic animals such as fish.
5. Effects sewage can spread disease and contaminate drinking water sources.
6. Cholera is transmitted through untreated water.
7. The health effects of air pollution include heart disease, lung cancer, and asthma.