Category Archive: Toxic Contamination

Mar 15

Abandoned coal mines leave an enduring water legacy

When coal is mined in Pennsylvania, other minerals and metals including iron sulfide and aluminum are exposed and left behind. They’re typically harmless as long as they stay dry, but… Ryan: “As you get more precipitation, your water table increases. If you have too much groundwater it can fill up voids in underground coal mines …

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Permanent link to this article: http://www.currentcast.org/stormwater-management/abandoned-coal-mines-leave-an-enduring-water-legacy/

Mar 13

Coal ash goes to court

When coal is burned for power, a residue called coal ash is left behind. “It contains a slew of toxic pollutants such as arsenic, cadmium, and selenium,” says Lisa Hallowell of the nonprofit Environmental Integrity Project. She says utilities used to frequently dispose of coal ash in unlined ponds that could leak into ground and surface …

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Permanent link to this article: http://www.currentcast.org/toxic-contamination/coal-ash-goes-to-court/

Mar 12

Take me home, country roads

Driving on dirt roads kicks up dust that can make it hard to see and cause respiratory problems for people who live nearby. In some areas, a wastewater mix from oil and gas production is sprayed on dirt and gravel roads to suppress the dust. The wastewater is usually free. But it contains radium, which …

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Permanent link to this article: http://www.currentcast.org/toxic-contamination/take-me-home-country-roads/

Mar 05

When a wet winter can be bad for water quality

For more than 100 years, coal was mined near Turtle Creek in western Pennsylvania. The river became polluted. “But that began to improve through the 1970s,” says Gary Smith of the Pennsylvania Fish and Boat Commission. He says regulations and restoration projects led to cleaner water. Then last year a very wet winter filled abandoned mines …

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Permanent link to this article: http://www.currentcast.org/stormwater-management/turtle-creek/

Feb 26

Why the Clean Water Act Is a Hard Act to Follow

One law has led to a scrub-up of America’s waterways. Dive in to the many ways rivers, lakes, and coasts have since benefited: Forty-odd years ago, two-thirds of America’s rivers, lakes, and coastal waters were too polluted for swimming or fishing. When an oil slick on a Midwestern river caught fire, the public was fed …

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Permanent link to this article: http://www.currentcast.org/agricultural-runoff/clean-water-act/

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