Water Pollution And Nanotechnology

By 2015, approximately 3 billion people will live in countries where it will be difficult to get enough water for basic needs. More than 1 billion people will lack access to clean drinking water, while others will die from contaminated water. The Environmental Protection Agency (EPA) estimates that at least 500,000 cases of illnesses annually can be attributed to contaminated drinking water in the United States.

Water can be polluted by excessive amounts of chemicals such as: heavy metals, organic chemicals, disease-causing microorganisms, sediments, heat or thermal pollution and others. These sources ofpol-lutants come from homes, mining activities, municipal sewage plants, industry and manufacturing plants, ranching, and agricultural operations.

^ Safer Water Worldwide. Industrial toxicolo-gists developed a water purifier which separates particles and organisms from water and can be used to detect pesticides in water. Go to Web site. http://www. sciencedaily.com/videos/2006-12-06/

Did you know?

Heavy metals include metallic elements such as mercury, lead, and arsenic that are hazardous and toxic and are a health risk for humans and other living organisms.

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