Research Article
Source Contributions of PM2.5 in the Severe Haze Episode in Hebei Cities
Table 2
The average spatial source contribution (%) to PM2.5 concentrations in Hebei cities.
| | | | SHB | NHB | BJTJ | SX | SD | HN | Sum |
| | Shijiazhuang | Jan. | 70.8 | 14.1 | 2.3 | 4.9 | 1.4 | 1.4 | 94.9 | | Feb. | 66.4 | 15.0 | 3.2 | 3.8 | 3.8 | 1.9 | 94.1 |
| | Xingtai | Jan. | 70.6 | 9.4 | 2.2 | 4.9 | 2.5 | 5.6 | 95.2 | | Feb. | 63.9 | 10.1 | 3.2 | 3.6 | 5.8 | 7.6 | 94.2 |
| | Handan | Jan. | 68.5 | 7.6 | 1.9 | 4.1 | 2.9 | 9.9 | 94.9 | | Feb. | 63.0 | 7.9 | 2.8 | 2.9 | 6.2 | 10.9 | 93.7 |
| | Zhangjiakou | Jan. | 0.5 | 69.8 | 1.6 | 2.5 | 0.2 | 0.5 | 75.1 | | Feb. | 2.0 | 70.7 | 1.6 | 2.7 | 0.8 | 0.4 | 78.2 |
| | Chengde | Jan. | 0.7 | 68.7 | 4.0 | 1.1 | 0.6 | 0.4 | 75.5 | | Feb. | 0.7 | 66.2 | 7.6 | 0.7 | 2.4 | 0.6 | 78.2 |
| | Qinhuangdao | Jan. | 0.8 | 57.7 | 2.7 | 0.6 | 2.0 | 0.6 | 64.4 | | Feb. | 0.8 | 59.6 | 4.4 | 0.6 | 5.7 | 0.6 | 71.7 |
| | Cangzhou | Jan. | 3.1 | 54.1 | 14.0 | 2.1 | 10.7 | 3.7 | 87.7 | | Feb. | 2.6 | 45.9 | 16.1 | 2.0 | 18.7 | 3.1 | 88.4 |
| | Hengshui | Jan. | 10.2 | 54.3 | 4.2 | 3.0 | 11.0 | 7.0 | 89.7 | | Feb. | 6.2 | 48.6 | 6.5 | 2.7 | 18.7 | 6.3 | 89 |
| | Langfang | Jan. | 2.3 | 30.0 | 52.9 | 1.5 | 1.4 | 0.8 | 88.9 | | Feb. | 1.5 | 31.5 | 48.9 | 1.3 | 5.9 | 0.8 | 89.9 |
| | Baoding | Jan. | 3.7 | 82.1 | 5.5 | 1.8 | 1.3 | 0.9 | 95.3 | | Feb. | 3.5 | 78.2 | 6.8 | 1.4 | 4.4 | 1.1 | 95.4 |
| | Tangshan | Jan. | 0.8 | 81.6 | 4.7 | 0.6 | 1.2 | 0.5 | 89.4 | | Feb. | 0.9 | 79.0 | 6.3 | 0.6 | 4.4 | 0.6 | 91.8 |
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SHB: southern Hebei; NHB: northern Hebei; BJTJ: Beijing and Tianjin; SX: Shanxi; SD: Shandong; HN: Henan.
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