EPA Said To Support 70 ppb Standard In Final Ozone NAAQS Rulemaking

September 3, 2015
EPA's final revised ozone air standard currently undergoing White House review leans toward tightening the 2008 limit of 75 parts per billion (ppb) down to 70 ppb, industry sources say, which would be the weakest option of the 60 to 70 ppb range backed by the agency's science advisers -- though the rule could still change in the coming weeks. Industry groups, environmentalists and others are seeking meetings with EPA and White House Office of Management & Budget (OMB) officials...


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