On Thursday, June 22, 2023, EPN submitted comments on EPA’s proposed revisions to the Mercury and Air Toxics Standards (MATS) following a residual risk and technology review. EPN feels the proposal reflects recent developments in control technologies and the performance of coal- and oil-fired power plants. The proposals to tighten the emissions standard for filterable particles, to reduce emissions of non-mercury metals, and tighten the startup and shutdown requirements for all coal- and oil-fired power plants will produce significant public health benefits. Requiring that all plants monitor these particulate matter emissions with continuous emissions monitors will ensure that the goals of these measures are met. We urge EPA to finalize the proposal and to resume work on the methylmercury Oral Reference Dose that would allow the agency to more accurately report to the public the benefits of mercury emissions reductions.
Read the comments.