What does PM-2.5 stand for?

PM-2.5 stands for "particulate matter of diameter less than 2.5 micrometers"

How to abbreviate "particulate matter of diameter less than 2.5 micrometers"?

"particulate matter of diameter less than 2.5 micrometers" can be abbreviated as PM-2.5

What is the meaning of PM-2.5 abbreviation?

The meaning of PM-2.5 abbreviation is "particulate matter of diameter less than 2.5 micrometers"

What does PM-2.5 mean?

PM-2.5 as abbreviation means "particulate matter of diameter less than 2.5 micrometers"