The waste-bearing water, or effluent, is discharged into streams, lakes, or oceans, which in turn disperse the polluting substances.
Factories, including oil refineries, and electronic manufacturers typically release one or more pollutants into water they discharge (called effluents). The pollutants include grit, asbestos, phosphates and nitrates, mercury, lead, caustic soda and other sodium compounds, sulfur and sulfuric acid, oils, and petrochemicals.
Environmental Protection Agency (EPA) concluded that approximately 40% of the nation's surveyed lakes, rivers, and estuaries were too polluted for such basic uses as drinking supply, fishing, and swimming.
Oil rig explosion causes pollution in the Gulf of Mexico
Water pollution is so bad that some beaches must be closed.
Dirty water is the world's biggest health risk, and continues to threaten both quality of life and public health in the United States. When water from rain and melting snow runs off roofs and roads into our rivers, it picks up toxic chemicals, dirt, trash and disease-carrying organisms along the way.
Large and small craft significantly pollute both inland and coastal waters by dumping their untreated sewage. Oil spilled accidentally or flushed from tankers and offshore rigs (900,000 metric tons annually) sullies beaches and smothers bird, fish, and plant life.
“Air And Water Pollution.” Kidzworld. Web. 26 Aug. 2015. <>“Nonpoint Source Pollution.” NOAA's National Ocean Service Education: Web. 26 Aug. 2015. Pollution.”<>“Water Thank You Ocean. Web. 26 Aug. 2015. <>“ Causes Of Water Pollution.” Causes of Water Pollution. Web. 26 Aug. 2015. <>

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