Comment on Doctors Might Have Been Focusing on the Wrong Asthma TriggersparentComments−briefcomment5yI wonder what the PM1 and under figures would look like. I recall seeing some analysis stating that the bulk of car related PM was smaller than PM1.−elric5yThat's pretty much what the black carbon component indicates.
Comments
I wonder what the PM1 and under figures would look like. I recall seeing some analysis stating that the bulk of car related PM was smaller than PM1.
That's pretty much what the black carbon component indicates.