Chemistry Unexpected | August 27, 2007 Issue - Vol. 85 Issue 35 | Chemical & Engineering News
 
 
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Volume 85 Issue 35 | p. 40 | Insights
Issue Date: August 27, 2007

Chemistry Unexpected

Simple chemistry brings a Pennsylvania creek back to life
Department: Science & Technology
News Channels: Environmental SCENE

Being a chemist, I go through life expecting to find chemistry at every turn. Even so, I was pleasantly surprised a few weekends ago to discover chemistry at work in an unexpected way and in an unexpected place: Simple limestone is being used to adjust the pH of streams affected by acidic coal-mine drainage in Pennsylvania forests.

Large-scale anthracite coal mining began in eastern Pennsylvania before the 1850s and reached its peak in the late . . .

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