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water pollution |
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water pollution, the contamination of lakes, rivers, and streams by industrial or community sources of pollutants. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| His "grand experiment" in 1854 (comparing cholera deaths in South London households that had consumed contaminated water with those that had not consumed contaminated water) is often considered a classic (2), but the Broad Street pump outbreak is perhaps the more famous historical account and is the subject of Steven Johnson's new book, The Ghost Map. A new study shows that these bacteria make compounds that cement minute metallic particles into balls that naturally drop out of contaminated water. 2002) suggested that the increase in As concentration in rice after cooking in contaminated water resulted from a chelating effect by rice grains, or concentration of As due to water evaporation during the cooking process or both. |
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