Research Article
Distributions, Sources, and Backward Trajectories of Atmospheric Polycyclic Aromatic Hydrocarbons at Lake Small Baiyangdian, Northern China
Table 2
PAHs contents in the gaseous phase, particulate phase, and dust fall at Lake Small Baiyangdian.
| | | Gaseous phase (ngm−3) | Particulate phase (ngm−3) | Dust fall (ngg−1) | | | Mean | SD | Min | Max | Mean | SD | Min | Max | Mean | SD | Min | Max |
| | Nap | 123.4 | 157.2 | 7.7 | 478.1 | 7.7 | 4.7 | 2.4 | 16.7 | 151.7 | 74.1 | 33.4 | 254.8 | | Ace | 7.6 | 6.1 | 1.3 | 16.7 | 0.3 | 0.2 | 0.1 | 0.8 | 16.1 | 16.4 | 5.8 | 52.5 | | Acy | 3.1 | 3.7 | 0.2 | 9.4 | 0.8 | 0.8 | 0.0 | 2.2 | 31.8 | 22.0 | 7.6 | 64.4 | | Flo | 66.9 | 49.9 | 16.1 | 161.4 | 3.5 | 2.5 | 1.4 | 8.2 | 132.5 | 79.4 | 58.8 | 297.7 | | Phe | 142.6 | 130.0 | 42.4 | 428.0 | 21.1 | 21.5 | 4.0 | 71.2 | 1553.5 | 1167.0 | 412.1 | 3738.6 | | Ant | 6.5 | 5.9 | 1.6 | 19.1 | 2.1 | 1.7 | 0.9 | 5.0 | 121.6 | 105.8 | 36.7 | 350.1 | | Fla | 39.9 | 36.7 | 6.6 | 120.2 | 22.3 | 20.1 | 4.2 | 64.9 | 1471.1 | 1149.9 | 391.8 | 3676.1 | | Pyr | 19.5 | 18.4 | 3.9 | 60.5 | 12.6 | 10.3 | 3.5 | 34.7 | 796.9 | 579.4 | 232.9 | 1934.6 | | Baa | 1.2 | 1.1 | 0.3 | 3.7 | 9.2 | 2.1 | 5.4 | 11.1 | 210.8 | 69.3 | 116.3 | 324.2 | | Chr | 3.1 | 2.3 | 0.8 | 7.9 | 17.1 | 4.6 | 9.4 | 21.9 | 661.1 | 274.2 | 334.5 | 1140.4 | | Bbf | 1.8 | 2.0 | 0.3 | 5.6 | 19.5 | 2.5 | 15.0 | 21.9 | 756.2 | 273.2 | 411.9 | 1162.2 | | Bkf | 0.6 | 0.6 | 0.2 | 1.4 | 14.4 | 3.0 | 9.4 | 17.3 | 225.2 | 69.1 | 129.2 | 323.3 | | Bap | 0.4 | 0.3 | 0.1 | 0.8 | 13.9 | 1.0 | 12.6 | 15.6 | 230.8 | 120.0 | 122.6 | 452.2 | | DahA | 0.1 | 0.0 | 0.1 | 0.1 | ND | ND | ND | ND | 53.9 | 45.7 | 18.7 | 150.7 | | IcdP | 1.0 | 0.5 | 0.2 | 1.4 | 20.7 | 0.5 | 20.0 | 21.1 | 302.9 | 186.1 | 29.8 | 556.4 | | BghiP | 0.7 | 0.5 | 0.2 | 1.5 | 20.7 | 0.9 | 19.4 | 22.0 | 214.1 | 99.7 | 108.4 | 372.0 |
| | LMW | 390.0 | 284.8 | 76.9 | 851.6 | 57.0 | 47.9 | 15.8 | 163.2 | 3478.3 | 2278.0 | 1156.9 | 6643.5 | | MMW | 26.0 | 23.0 | 6.7 | 74.5 | 57.7 | 37.1 | 3.5 | 101.2 | 2650.2 | 1136.3 | 1277.5 | 4884.7 | | HMW | 2.0 | 1.3 | 0.6 | 3.5 | 50.8 | 10.0 | 35.9 | 57.3 | 801.7 | 374.4 | 429.1 | 1446.7 | | PAH16 | 417.2 | 299.8 | 84.4 | 928.6 | 150.9 | 99.2 | 19.3 | 321.6 | 6930.2 | 3206.5 | 2916.9 | 12387.2 |
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Nap: naphthalene; Ace: acenaphthene; Acy: acenaphthylene; Flo: fluorene; Phe: phenanthrene; Ant: anthracene; Fla: fluoranthene; Pyr: pyrene; Baa: benzo[a]anthracene; Chr: chrysene; Bbf: benzo[b]fluoranthene; Bkf: benzo[k]fluoranthene; Bap: benzo[a]pyrene; IcdP: indeno[1,2,3-cd]pyrene; DahA: dibenz[a,h]anthracene; BghiP: benzo[ghi]perylene; PAH16: the sum of 16 PAH components; LMW-PAH: low molecular weight PAHs including 2-3 ring PAHs (Nap, Ace, Acy, Flo, Phe, Ant, Fla); MMW-PAH: moderate molecular weight PAHs including 4 ring PAHs (Pyr, Baa, Chr, Bbf, Bkf); HMW-PAH: high molecular weight PAHs including 5-6 ring PAHs (Bap, Icdp, Daha, Bghip).
ND: not detected.
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