Fig. 2.

Time series of a) cumulative rain and daily mean temperature, PM2.5 concentrations of b) mannitol and c) endotoxin. Endotoxin was analyzed in a subset of samples collected from May 3–30.

Time series of a) cumulative rain and daily mean temperature, PM2.5 concentrations of b) mannitol and c) endotoxin. Endotoxin was analyzed in a subset of samples collected from May 3–30.