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U.S. EPA expected to tighten long-awaited ozone standards: sources

2014-11-26 03:28:00| Climate Ark Climate Change & Global Warming Newsfeed

Reuters: The Environmental Protection Agency is expected to propose on Wednesday more stringent air quality standards for ground-level ozone, the main culprit in smog, sources said. Under a court-ordered deadline of next Monday to release its proposal, the agency could propose a National Ambient Air Quality Standard between 65 and 70 parts per billion concentration of ozone, and take comment on standards within a 60-75 ppb range, sources familiar with the matter said. That would compare with the current...

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