MATS Update Tightens Air Toxics, Mercury Limits In Line With Proposal

EPA’s final rule updating mercury and air toxics standards (MATS) for power plants hews closely to the proposed version, cutting a mercury limit for plants using lignite coal to that applicable to other coal plants, and tightening a limit for particulate matter (PM) as a “surrogate” for other metals by two-thirds, with officials projecting no plant closures from the rule. The rule , released April 25 as part of a broader package of EPA measures for power plants, adopts EPA’s...