West Virginia tightens pollution rules for industrial boilers and cement kilns

West Virginia is updating its rules for nitrogen oxide emissions from large industrial boilers, combustion turbines, and cement kilns. This means these facilities will face stricter limits on the pollution they release during ozone season.

For years, many industrial facilities could operate with less stringent pollution controls than power plants. This change means a specific class of industrial polluters will now be held to similar standards for ozone-forming emissions. It shifts the burden of reducing regional air pollution more broadly across industrial sectors.