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Table 1 Average mass of PM 2.5 constituents in chambers during inhalation exposures

From: PM2.5-induced cardiovascular dysregulation in rats is associated with elemental carbon and temperature-resolved carbon subfractions

Constituent Mass (SEM) (mg/m3)
PM2.5 547 ± 62.3
OM 208 ± 15.3
EC 10 ± 1.3
Sulfate 154 ± 28.8
Nitrate 24 ± 5.5
Ammonium 52 ± 11.9
Urban dust 56 ± 8.1
Other 58 ± 14.7
  1. Data represent the daily mean of 16 days of exposures (four studies of 4 days each). OM-organic matter; EC – elemental carbon.