Table 1 24-hour averages of total number concentrations (NC) by DPMS in the chambers and handheld CPC3007 particle counters and mass of particles in the exposure chamber and at outdoor monitoring stations.
Exposure chamber | Outdoor monitoring stations | |||
|---|---|---|---|---|
No filtration | Filtration | Urban background | Busy urban street | |
DMPS NC (#/cm3) | 11600 ± 5600 | 555 ± 1053 | 7100 ± 4400 | 24800 ± 15100 |
CPC3007 NC (#/cm3) | 12200 ± 5700 | 1270 ± 1320 | - | - |
PM10 (μg/m3) | 24.3 ± 9.6 | - | 26.4 ± 9.7 | 44.2 ± 13.7 |
PM10-2.5 (μg/m3) | 13.8 ± 7.4 | - | 7.3 ± 3.0 | 19.0 ± 4.9 |
PM2.5 (μg/m3) | 10.5 ± 4.8 | - | 19.0 ± 9.0 | 25.2 ± 12.0 |