Emissions from wastewater recycling at oil and gas drilling sites likely contributed to a string of high-ozone events in the winter of 2011 in Wyoming’s Upper Green River Basin, according to a study released this week.
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Emissions from wastewater recycling at oil and gas drilling sites likely contributed to a string of high-ozone events in the winter of 2011 in Wyoming’s Upper Green River Basin, according to a study released this week.

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