The U.S. Environmental Protection Agency (USEPA) announced on January 6, 2023, that it is proposing to modify the National Ambient Air Quality Standard (NAAQS) for Fine Particulate Matter (PM2.5). The current annual primary...more
The U.S. Environmental Protection Agency (“USEPA”) announced yesterday that it is proposing to retain the current National Ambient Air Quality Standards (“NAAQS”) for fine particulate matter (“PM2.5?) and course particulate...more