Modeling future asthma attributable to fine particulate matter (PM) in a changing climate: a health impact assessment.

Exposure to fine particulate matter (PM) is associated with asthma development as well as asthma exacerbation in children. PM can be directly emitted or can form in the atmosphere from pollutant precursors. PM emitted and formed in the atmosphere is influenced by meteorology; future changes in climate may alter the concentration and distribution of PM.