What does PM2.5 stand for?

PM2.5 stands for "Fine particulate matter"

How to abbreviate "Fine particulate matter"?

"Fine particulate matter" can be abbreviated as PM2.5

What is the meaning of PM2.5 abbreviation?

The meaning of PM2.5 abbreviation is "Fine particulate matter"

What does PM2.5 mean?

PM2.5 as abbreviation means "Fine particulate matter"