Table 3.
Captured PM2.5 per unit leaf area and per tree and the total leaf area per tree of 25 species
| City | Type | Tree species | Abbreviation | APM2.5 (mg m−2) | Total leaf area (m2) | Captured PM2.5 per tree (mg) |
|---|---|---|---|---|---|---|
| Chongqing | Broadleaf | Platanus orientalis | PO | 0.81 | 21.43 | 17.3583 |
| Cinnamomum japonicum | CJ | 0.72 | 41.43 | 29.8296 | ||
| Broussonetia papyrifera | BP | 2.15 | 54.37 | 116.8955 | ||
| Cinnamomum camphora | CC | 1.03 | 59.83 | 61.6249 | ||
| Ginkgo biloba | GB | 0.45 | 31.53 | 14.1885 | ||
| Ficus virens | FS | 1.25 | 60.45 | 75.5625 | ||
| Ficus microcarpa | FM | 1.53 | 68.13 | 104.2389 | ||
| Erythrina variegata | EV | 1.88 | 64.43 | 121.1284 | ||
| Grevillea robusta | GR | 3.28 | 52.22 | 171.2816 | ||
| Symplocos setchuensis | SS | 1.96 | 33.67 | 65.9932 | ||
| Litsea elongata | LE | 2.63 | 51.67 | 135.8921 | ||
| Magnolia soulangeana | MS | 0.72 | 63.42 | 45.6624 | ||
| Koelreuteria bipinnat | KB | 2.52 | 45.62 | 114.9624 | ||
| Coniferous | Cunninghamia lanceolata | CL | 4.72 | 102.56 | 484.0832 | |
| Pinus massoniana | PM | 2.02 | 76.96 | 155.4592 | ||
| Beijing | Broadleaf | Broussonetia papyrifera | BP | 2.35 | 54.37 | 127.7695 |
| Ginkgo biloba | GB | 0.53 | 31.53 | 16.7109 | ||
| Platanus orientalis | PO | 0.83 | 21.43 | 17.7869 | ||
| Magnolia soulangeana | MS | 0.77 | 63.42 | 48.8334 | ||
| Populus tomentosa | PT | 1.87 | 91.14 | 170.4318 | ||
| Fraxinus pennsylvanica | FP | 1.07 | 87.47 | 93.5929 | ||
| Sophora japonica | SJ | 2.12 | 48.47 | 102.7564 | ||
| Coniferous | Platycladus orientalis | PLO | 1.24 | 36.82 | 45.6568 | |
| Pinus armandii | PA | 1.7 | 73.65 | 125.205 | ||
| Pinus massoniana | PM | 2 | 76.96 | 153.92 |
Note: The bold are the common species in Chongqing and Beijing. APM2.5 represents captured PM2.5 per unit leaf area