EPA Tightens Restrictions on Fine Particulate Matter: What You Need to Know
The EPA just tightened its grip on air pollution, lowering the allowable levels of harmful fine particulate matter. While the change from 12 to 9 micrograms per cubic meter might seem small, it reflects a big step forward in protecting us from this invisible threat.
EPA Tightens Restrictions on Fine Particulate Matter: What You Need to Know Read More