Poor water quality in the environment is a growing problem due to chemical or microbial contamination from farms, cities and factories. According to the United Nations, more than 80% of the world's wastewater is returned to the environment without treatment. This level of contamination poses a risk to both humans and aquatic wildlife.
Tap water can also absorb pesticides that are washed into streams and rivers. Chlorine is added to tap water for disinfection, but it reacts with fallen leaves and forms toxic by-products. Your own pipes can also contaminate your tap water with lead. The government regularly tests water to ensure safety. Use our site or check the EPA website for information on your local drinking water.
Safe and readily available water is important to public health, whether for drinking, domestic use, food production or recreational purposes. Improved water supply and sanitation, as well as better management of water resources, can boost national economic growth and make a significant contribution to poverty reduction.
In the United States and Canada, tap water is generally safe to drink, but you should heed the water recommendations issued by your local health authority. Temporary contamination can be caused by a ruptured water main or the failure of a sewage treatment plant.