Catalytic converters: source of pollution?

Massachusetts scientists say toxic metals from automotive catalytic converters have been detected for the first time in U.S. urban air.

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<p><a href="http://www.physorg.com/news8769.html">Catalytic converters: source of pollution?</a></p> <p>Massachusetts scientists say toxic metals from automotive catalytic converters have been detected for the first time in U.S. urban air. </p>