US environment scientists urge tougher smog rules


WASHINGTON, Jan 30 (Reuters) - Scientists at the U.S. Environmental Protection Agency on Tuesday recommended tougher standards for ground-level ozone, the main component of smog, but no action will be taken until next year. Dropping the level of ozone allowed in the air would offer health benefits for asthmatic children and others with lung disease, as well as for healthy children and adults, the scientists said in a staff paper. The current standard permits 0.08 parts per million of ...

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