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  1. What Causes Tap Water Contamination | Drinking Water | CDC

    Jul 31, 2024 · Tap water that is contaminated with germs or chemicals can make you sick. Tap water can get contaminated by human or animal poop, natural or man-made chemicals, or …

  2. Water | US EPA

    Aug 4, 2025 · Pollution, including industrial, municipal, and agricultural waste to surface waters like rivers, streams, lakes, and estuaries can harm people’s health when they go swimming at …

  3. What’s Contaminating Water Across All 50 States? Full List

    Jul 11, 2025 · A study found a total of 324 contaminants found in drinking water, with 12 identified across all 50 states.

  4. Dangers of Dirty Water - Poison Control

    If you live near agricultural areas, your water may be contaminated with nitrates, nitrites, pesticides, and bacteria. Some pesticides can get into your body both by swallowing and via …

  5. Water pollution - Wikipedia

    Water pollution may affect either surface water or groundwater. This form of pollution can lead to many problems. One is the degradation of aquatic ecosystems. Another is spreading water …

  6. Water Pollution - National Geographic Society

    Aug 14, 2025 · Oil spills in the ocean can have devastating, long-term impacts to ecosystems and human health as well as significant economic consequences. In many cases, pollution does …

  7. Safe Water and Your Health | National Institute of Environmental …

    Sep 10, 2025 · Contaminated drinking water can produce a broad range of health effects. Many can be severe and long-lasting, depending on the chemical and the level of exposure. …

  8. Drinking-water - World Health Organization (WHO)

    Sep 13, 2023 · Microbiologically contaminated drinking water can transmit diseases such as diarrhoea, cholera, dysentery, typhoid and polio and is estimated to cause approximately 505 …

  9. Water Quality and Your Health | Drinking Water | CDC

    Jul 16, 2024 · If your tap water gets contaminated with germs or chemicals, follow advice from your utility or health officials. Depending on the problem, officials may issue a drinking water …

  10. Water Pollution Definition - Types, Causes, Effects - NRDC

    Jan 11, 2023 · Water is uniquely vulnerable to pollution. Known as a “universal solvent,” water is able to dissolve more substances than any other liquid on earth. It’s the reason we have Kool …