The U.S. Environmental Protection Agency recently issued final rules to reduce air pollution at natural gas wells and other sources in the oil and gas industry. The rules—a New Source Performance Standard (NSPS) for volatile organic compounds (VOCs) and National Emissions Standards for hazardous air pollutants—establish the first federal standards for emissions from production wells (natural gas processing plants were already covered). They are designed to limit the release of VOCs and other air toxics that contribute significantly to smog and are associated with a wide range of adverse health effects. (For more on the oil and gas rules, see M.J. Bradley & Associates’ Issue Brief.)
In addition to reducing VOC and air toxics emissions, these rules will help reduce methane emissions from shale gas development. According to the EPA, there are over 11,000 new hydraulically fractured wells each year, and while water-related environmental concerns have received the lion’s share of public attention and are the focus of EPA’s ongoing hydraulic fracturing study, uncontrolled emissions from hydraulic fracturing can negatively impact air quality and the climate.