Table 1.
Sample source | PM2.5 (μg/m3) | S (μg/m3) | Al (μg/m3) | V (ng/m3) | Ni (ng/m3) | Se (ng/m3) |
---|---|---|---|---|---|---|
Overall SF FPM CAPs | 85.6 ± 8.2 | 11.32 ± 1.37 | 354.6 ± 28.7 | 17.3 ± 2.4 | 43.15 ± 10.1 | 8.7 ± 0.9 |
SF CAPs (14 days with winds from northwest) | 43.7 ± 6.1 | 3.43 ± 0.56 | 199.1 ± 73.5 | 9.2 ± 2.2 | 174.0 ± 77.0 | 5.5 ± 1.9 |
SF CAPs (other 89 days) | 91.0 ± 9.0 | 12.3 ± 1.5 | 374.6 ± 30.5 | 18.4 ± 2.7 | 26.3 ± 4.1 | 9.1 ± 1.0 |
NYC FPMa | 15.7 ± 0.7 | 1.4 ± 0.1 | 16.5 ± 2.9 | 6.1 ± 0.3 | 19.0 ± 1.1 | 1.3 ± 0.1 |
National FPMb | 14.4 ± 0.5 | 1.1 ± 0.1 | 33.4 ± 4.0 | 1.9 ± 0.2 | 1.9 ± 0.4 | 1.2 ± 0.1 |
Mean values from three monitors in NYC during 2000–2002 (n = 202 days).
Average values of annual mean across 60 MSAs.