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Table 1 Chamber and exposure characteristics

From: Ozone co-exposure modifies cardiac responses to fine and ultrafine ambient particulate matter in mice: concordance of electrocardiogram and mechanical responses

  Groups
  FA UFCAPs UFCAPs + O3 FCAPs FCAPs + O3 O3
Temperature (°C) 22.3 ± 0.1 23.0 ± 0.1 22.6 ± 0.1 22.0 ± 0.1 22.2 ± 0.1 22.5 ± 0.2
Rel. humidity (%) 50.2 ± 0.7 70.5 ± 4.6 56.0 ± 3.6 59.8 ± 3.4 59.0 ± 5.8 52.4 ± 2.2
O3 (ppb) 4.0 ± 0.0 25.7 ± 4.7 298.3 ± 0.7 33.1 ± 2.0 300.0 ± 0.4 299.0 ± 1.1
PM Mass (ug/m3) 4.9 ± 2.2 138.8 ± 33.1 85.7 ± 6.5 190.9 ± 32.8 211.5 ± 37.3 3.4 ± 1.3
PM Total # (particles/cc) 24.2 ± 1.4 2.1E5 ± 5.6E3 1.6E5 ± 2.0E3 1.0E4 ± 5.2E1 1.1E4 ± 1.6E2 20.2 ± 4.2
Particle size (um) - 0.076 0.072 0.246 0.235 -
Geo. Std. Dev. - 1.67 1.66 1.96 1.67 -
  PM CARBON
TC (μg/m3) 3.4 ± 0.2 67.6 ± 6.5(48.7%) 46.4 ± 3.4(54.1%) 53.8 ± 4.4 (28.2%) 47.8 ± 7.3 (22.6%) 4.3 ± 0.4
OC (μg/m3) 3.7 ± 0.2 64.5 ± 5.9 (46.5%) 44.6 ± 3.1 (52.0%) 50.3 ± 4.0 (26.3%) 45.7 ± 6.6 (21.6%) 4.6 ± 0.4
EC (μg/m3) ** 3.1 ± 0.6(2.2%) 1.8 ± 0.3(2.1%) 3.4 ± 0.5(1.8%) 2.2 ± 0.7(1.0%) **
  1. Reported values are mean ± SEM for each group over all exposure days.
  2. **below detection limit.
  3. Carbon percentages are by mass.