Cleaner air coming soon?
Particulate matter causes cardiovascular deaths, and also worsens respiratory illness. The Environmental Protection Agency plans to reduce acceptable levels of PM and ozone, a move that would force industry to pay for new upgrades. NEJM 2011;365:198-201.
Create your profile
Only paid subscribers can comment on this post
Check your email
For your security, we need to re-authenticate you.
Click the link we sent to , or click here to sign in.