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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.