CARB Study On Pollution Link To Virus Deaths May Spur Push For PM Cuts

Building on a high-profile Harvard University study, California Air Resources Board (CARB) officials are planning to study the potential link between chronic air pollution exposure to more severe COVID-19 illnesses and death rates -- research that could boost claims that EPA should tighten fine particulate matter (PM 2.5) standards. “I think if the Harvard study survives peer review and CARB’s research produces similar results then that would call for tightening PM 2.5 standards,” says one environmentalist closely following the issue...