Table 1 Observed mass concentrations (averages + standard deviations) of aerosol species and OA factors, gaseous pollutants, and meteorological parameters during three different periods.
From: Staggered-peak production is a mixed blessing in the control of particulate matter pollution
Species | NPhs | SPhs | NPnhs |
|---|---|---|---|
Aerosol species (μg m−3) | |||
PM1 | 70.0 ± 54.4 | 53.0 ± 56.4 | 50.7 ± 49.4 |
OA | 34.8 ± 26.8 | 26.4 ± 27.1 | 20.8 ± 18.2 |
HOA | 6.1 ± 5.6 | 2.4 ± 4.0 | 1.9 ± 2.6 |
COA | 6.5 ± 5.6 | 2.7 ± 2.7 | 1.9 ± 1.9 |
CCOA | 12.5 ± 11.3 | 8.0 ± 9.0 | 1.9 ± 2.8 |
BBOA | 1.9 ± 1.8 | 2.0 ± 2.5 | 1.9 ± 1.9 |
OOA | 7.8 ± 6.7 | 11.3 ± 12.5 (LSOA:10.0 ± 11.4; RSOA:1.3 ± 1.7) | 13.2 ± 11.9 (LSOA:10.2 ± 10.3; RSOA: 3.0 ± 2.2) |
SO42− | 6.6 ± 7.3 | 4.5 ± 5.7 | 4.9 ± 6.5 |
NO3− | 8.9 ± 7.4 | 10.7 ± 13.9 | 13.7 ± 16.6 |
NH4+ | 6.9 ± 5.8 | 6.2 ± 7.0 | 7.7 ± 7.8 |
Cl− | 5.7 ± 5.1 | 2.9 ± 3.7 | 1.4 ± 1.7 |
BC | 7.1 ± 5.6 | 2.3 ± 2.6 | 2.2 ± 2.3 |
Gaseous pollutants | |||
SO2 (ppb) | 21.6 ± 14.9 | 9.2 ± 8.2 | 5.2 ± 3.1 |
CO (ppm) | 1.9 ± 1.5 | 1.1 ± 1.1 | 2.2 ± 0.8 |
NO (ppb) | 37.4 ± 37.5 | 17.7 ± 28.2 | 10.0 ± 17.4 |
NO2 (ppb) | 39.9 ± 21.3 | 26.3 ± 18.0 | 27.4 ± 14.4 |
O3 (ppb) | 9.8 ± 9.0 | 14.1 ± 11.2 | 17.9 ± 13.7 |
Meteorological parameters | |||
RH (%) | 31.7 ± 14.9 | 35.2 ± 19.8 | 38.1 ± 21.6 |
T (°C) | 1.8 ± 3.5 | -0.2 ± 6.0 | 14.8 ± 5.6 |
WS (m s−1) | 1.7 ± 1.8 | 1.9 ± 1.3 | 1.8 ± 1.1 |
