Photothermal Deflection Spectroscopy of Collected Aerosols

PM 2.5 – Effects PM 2.5 refers to “Particulate Matter” 2.5 μm m or less in diameter Aerosols are technically liquids though are often grouped as PM 2.5 A PM 2.5 weighs about 1 pg. The health effects associated with exposure to fine particles aresignificant. Scientific studies have shown significant associations between elevated efineparticle levels and premature mortality. Effects associated with fine particle exposure include aggravation ofrespiratory and cardiovascular disease, lung disease, decreased lungfunction, asthma attacks, and certain cardiovascular problems such as heartattacks and cardiac arrhythmia. It is estimated that 44,000 persons die prematurely each year in the USAdue to particulates