Table 1 Summary of IAC, atmospheric pollutants (i.e., PM2.5, PM10, SO2, CO, NO2, and O3) and meteorological factors (i.e., Air pressure, Air temperature, Relative humidity, Visibility, Precipitation, Wind speed, and Wind direction) in Northeast China from 2014 to 2018
Year | Province | IAC(%) | PM2.5 (μg m−3) | PM10 (μg m−3) | SO2 (μg m−3) | CO (mg m−3) | NO2 (μg m−3) | O3 (μg m−3) | AP (hPa) | AT (°C) | RH (%) | V (km) | PR (mm) | WS1 (m s−1) | WS2 (m s−1) | WD (°) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2014 | Heilongjiang | 10 | 46 | 70 | 23 | 0.84 | 34 | 74 | 1001 | 5 | 63 | 13.9 | 2840 | 2.1 | 4.6 | 204 |
Jilin | 15 | 45 | 74 | 19 | 0.88 | 27 | 88 | 990 | 7 | 60 | 10.7 | 525 | 2.5 | 5.7 | 224 | |
Liaoning | 44 | 47 | 80 | 32 | 1.14 | 33 | 93 | 1009 | 10 | 60 | 9.3 | 473 | 2.6 | 5.4 | 197 | |
2015 | Heilongjiang | 12 | 44 | 65 | 19 | 0.82 | 31 | 75 | 1000 | 6 | 64 | 12.1 | 2737 | 2.2 | 4.8 | – |
Jilin | 20 | 45 | 74 | 20 | 0.87 | 27 | 88 | 990 | 7 | 62 | 6.7 | 522 | 2.7 | 5.6 | – | |
Liaoning | 40 | 47 | 80 | 32 | 1.14 | 33 | 93 | 1009 | 10 | 63 | 8.7 | 595 | 2.7 | 5.5 | – | |
2016 | Heilongjiang | 15 | 40 | 61 | 16 | 0.79 | 29 | 78 | 999 | 9 | 66 | 5.2 | 580 | 2.4 | 5.2 | 192 |
Jilin | 23 | 45 | 73 | 20 | 0.87 | 28 | 87 | 988 | 10 | 65 | 6.6 | 744 | 2.8 | 6.0 | 211 | |
Liaoning | 43 | 47 | 80 | 30 | 1.16 | 32 | 92 | 1009 | 10 | 63 | 7.9 | 783 | 2.7 | 5.7 | 190 | |
2017 | Heilongjiang | 20 | 39 | 59 | 15 | 0.75 | 27 | 79 | 1000 | 5 | 62 | 7.4 | 505 | 2.2 | 5.1 | 209 |
Jilin | 25 | 44 | 72 | 19 | 0.88 | 28 | 85 | 989 | 7 | 60 | 6.8 | 533 | 2.7 | 6.0 | 223 | |
Liaoning | 62 | 46 | 79 | 30 | 1.16 | 32 | 93 | 1009 | 10 | 59 | 9.7 | 562 | 2.6 | 5.7 | 195 | |
2018 | Heilongjiang | 10 | 35 | 55 | 13 | 0.69 | 25 | 79 | 1000 | 5 | 63 | 7.5 | 626 | – | 5.0 | 201 |
Jilin | 28 | 42 | 70 | 19 | 0.86 | 28 | 83 | 989 | 7 | 61 | 7.0 | 611 | – | 5.9 | 218 | |
Liaoning | 51 | 46 | 78 | 29 | 1.15 | 32 | 93 | 1009 | 10 | 60 | 11.1 | 590 | – | 5.7 | 185 |
