“We sought to analyze our satellite-derived PM2.5 estimates for insight into global and regional changes in PM2.5 exposure and its health effects.” The researchers discovered that while global ...

The researchers calculated that a one μg/m3 increase in annual average coal PM2.5 was associated with a 1.12% increase in all-cause mortality, a risk 2.1 times greater than that of PM2.5 from any ...

Recent spikes in the concentration of so-called PM2.5 air pollutants over wide areas of Japan once again raise alarms over the potential health risks from the small particles.

Air Quality Index, or AQI, and PM2.5, particulate matter which measures 2.5 micrometers or less, are not the same thing. But both do refer to how polluted the air is, just in different ways.