All sites (n=170) | Outdoor sites (n=125) | Underground (n=45) | |
---|---|---|---|
OPDTT-PM2.5(nmol DTT/min/m3) | 3.7 (0.4–25.7) | 2.0 (0.4–5.8) | 19.3 (12.7–25.7) |
OPDTT-PM10(nmol DTT/min/m3) | 5.7 (0.8–68.4) | 2.3 (0.8–6.7) | 49.9 (38.9–68.4) |
OPESR-PM2.5(AU/1000/m3) | 12.8 (0.5–916.4) | 2.9 (0.5–19.7) | 773.2 (569.7–916.4) |
OPESR-PM10(AU/1000/m3) | 30.9 (0.7–2612.4) | 5.7 (0.7–41.4) | 2.152.7 (1617.6–2612.4) |
OPAA-PM2.5(nmol AA/s/m3) | 95.6 (9.2–2122.2) | 32.9 (9.2–264.5) | 1853.2 (1482.4–2122.2) |
OPAA-PM10(nmol AA/s/m3) | 177.5 (4.5–5221.8) | 48.4 (4.5–415.4) | 4037.4 (3138.2–5221.8) |
PM2.5 (µg/m3) | 37.8 (8.3–167.1) | 23.4 (8.3–95.0) | 142.0 (123.0–167.1) |
PM10 (µg/m3) | 70.6 (18.1–449.6) | 38.0 (18.1–130.2) | 395.1 (353.7–449.6) |
PNC (103/cm3) | 23.0 (7.0–74.7) | 21.0 (7.0–74.7) | 29.6 (14.6–39.8) |
NO2 (ppb) | 20.1 (9.0–33.8) | 20.2 (9.0–33.8) | 19.7 (14.1–26.0) |
O3 (ppb) | 8.2 (0.3–31.8) | 18.3 (5.8–31.8) | 0.9 (0.3–0.6) |
OP, oxidative potential; PM, particulate matter; PNC, particle number concentrations; AU, arbitrary units.