The U.S. Environmental Protection Agency (EPA) today unveiled new, stricter limits for PM2.5 (particulate smaller than 2.5 micrometers in diameter), commonly referred to as soot. As NPR notes, these particles are are "one of the deadliest types of air pollution." From the report: The agency lowered the allowable limit f ... ⌘ Read more
The U.S. Environmental Protection Agency (EPA) today unveiled new, stricter limits for PM2.5 (particulate smaller than 2.5 micrometers in diameter), commonly referred to as soot. As NPR notes, these particles are are "one of the deadliest types of air pollution." From the report: The agency lowered the allowable limit f ... ⌘ Read more