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Physical sciences/Chemistry/Chemical compounds/Inorganic compounds/Sulfates

An Australian study shows how altering water treatment practices could prevent the corrosion and costly replacement of concrete in many sewer pipes.

AAAS showcased its commitment to green education at the 2010 National Sustainable Design Expo on the National Mall in Washington, D.C., as thousands of attendees celebrated the 40th anniversary of Earth Day and the U.S. Environmental Protection Agency.