water pollution-526互联

water pollution: Groundwater pollution, Surface water pollution, Ocean water pollution
the cause of water pollution:
Agricultural: Every time it rains, fertilizers, pesticides, and animal waste from farms and livestock operations wash nutrients and pathogens—such bacteria and viruses—into our waterways. Nutrient pollution, caused by excess nitrogen and phosphorus in water or air, is the number-one threat to water quality worldwide and can cause algal blooms, a toxic soup of blue-green algae that can be harmful to people and wildlife.
Oil pollution
Radioactive substances
Chemicals and heavy metals: Chemicals and heavy metals from industrial and municipal wastewater contaminate waterways as well.
the effects of water pollution:
To put it bluntly: Water pollution kills.In fact, it caused 1.8 million deaths in 2015, according to a study published in The Lancet. Contaminated water can also make you ill. Every year, unsafe water sickens about 1 billion people. And low-income communities are disproportionately at risk because their homes are often closest to the most polluting industries.Every year, 3.5 million Americans contract health issues such as skin rashes, pinkeye, respiratory infections, and hepatitis from sewage-laden coastal waters, according to EPA estimates.
What Can You Do to Prevent Water Pollution?
Reduce your plastic consumption and reuse or recycle plastic when you can.
Properly dispose of chemical cleaners, oils, and nonbiodegradable items to keep them from going down the drain.
Maintain your car so it doesn’t leak oil, antifreeze, or coolant.
If you have a yard, consider landscaping that reduces runoff and avoid applying pesticides and herbicides.
Don’t flush your old medications! Dispose of them in the trash to prevent them from entering local waterways.
Be mindful of anything you pour into storm sewers, since that waste often won’t be treated before being released into local waterways.