State group: Wyoming needs special winter rules for sage grouse
Wyoming’s “core area” designation will not include critical winter range inside a proposed gas field, but a team will recommend special winter stipulations there.
Upper Green River Basin
Study links Wyoming winter ozone to drillers’ wastewater plant
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.
Tempest buffets new air quality rules for Sublette County
Wyoming’s Air Quality Advisory Board hears conflicting views on Wyoming standards as feds move further to reduce ozone.
University of Wyoming researchers contribute to paper on high ozone events
Researchers learned that wintertime ozone production in the Uintah Basin occurs at lower concentrations of nitrogen oxides (NO) and much larger volatile organic compound (VOC) concentrations compared to summertime zone production in most urban areas.
EPA gives heavily drilled Wyoming area three years to improve
U.S. EPA has determined that southwest Wyoming's Upper Green River Basin no longer meets federal ground-level ozone pollution standards, a conclusion that could significantly affect two of the nation's largest oil and natural gas fields.