On Nov. 22, EPA proposed to strengthen limits on emissions of nitrogen oxides (NOx) from most new, modified, and reconstructed fossil fuel-fired stationary combustion turbines, reducing exposure to dangerous air pollution for nearby communities. The proposal would ensure that new turbines built at power plants or industrial facilities — especially large ones that could operate for decades — would be among the most efficient and lowest-emitting turbines ever built. NOx contributes to harmful health effects, such as asthma and respiratory infections, and reacts with other volatile organic compounds to form ozone (i.e., smog) and fine particulate matter.   

EPA will accept comments for 90 days after the proposal is published in the Federal Register.