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Per-/polyfluoroalkyl substances (PFASs) and pharmaceuticals and personal care products (PPCPs) were selected as the typical emerging contaminations to investigate the pollution characteristics in the atmospheric particulate matter (APM) of Chengdu. Concentration levels of 25PFASs and 9PPCPs in the APM of Chengdu were analyzed by ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), and source analysis was carried out on the PFASs, and the concentrations of the PFASs were correlated with total suspended particulate matter(TSP). The results showed that 10PFASs and 1PPCPs were detected in the APM. ∑10PFASs concentrations ranged from 4.58 to 647.59pg/m3, with a mean value of 140.81pg/m3, and the highest level was found in PFBA (mean value of 133.18pg/m3). The concentration of ∑PPCPs ranged from 34.98 to 474.00pg/m3, with a mean value of 189.88pg/m3, among which cotinine (CTN) was the only detected PPCP. The principal component analysis indicated that the atmospheric PFASs in the atmosphere of Chengdu were mainly originated from the surfactants, textile and leather industries. Except for 6:2 Fluorotonous Sulfonic Acid (6:2FTSA) and perfluorobutanoic acid (PFBA), all the other PFASs showed a significant positive correlation with TSP(P<0.05), which is related to the presence of Fe2O3 oxides and organic matter in atmospheric particulate matter discussed.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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