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Matt Yglesias points to a welcome bit of good news reported in the New York Times today. The EPA, it seems, is field testing a new way of using fish bones to clean up lead contamination in urban areas:

Today, there is more lead contamination in America’s cities than any federal or state agency could ever afford to clean up and haul away. So scientists and regulators are trying a new strategy, transforming the dangerous metal into a form the human body cannot absorb, thus vastly reducing the risk of lead poisoning.

The principle is straightforward, said Victor R. Johnson, an engineer with Civil & Environmental Consultants Inc. “The fish bones are full of calcium phosphate,” he said. “As they degrade, the phosphates migrate into the soil.” The lead in the soil, deposited by car exhaust from the decades when gasoline contained lead or from lead-based paint residue, binds with the phosphate and transforms into pyromorphite, a crystalline mineral that will not harm anyone even if consumed.

Evidence mounts almost daily about the damage that the modern environment does to our children. Lead, small particulates in the air, phthalates and other endocrine disruptors, sugar-heavy diets that promote Type 2 diabetes, and lousy conditions in the home all combine to make our children far more vulnerable to chronic problems, both physical and cognitive, than they need to be. It’s nice to see that at least one of these things is being addressed in a creative new way.

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