Rush-hour aromatic and chlorinated hydrocarbons in selected subway stations of Shanghai, China
Zhang, Y; Li, C; Wang, X; Guo, H; Feng, Y; Chen, J
HERO ID
1057342
Reference Type
Journal Article
Year
2012
Language
English
PMID
| HERO ID | 1057342 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | Rush-hour aromatic and chlorinated hydrocarbons in selected subway stations of Shanghai, China |
| Authors | Zhang, Y; Li, C; Wang, X; Guo, H; Feng, Y; Chen, J |
| Journal | Journal of Environmental Sciences |
| Volume | 24 |
| Issue | 1 |
| Page Numbers | 131-141 |
| Abstract | Air samples were collected simultaneously at platform, mezzanine and outdoor in five typical stations of subway system in Shanghai, China using stainless steel canisters and analyzed by gas chromatography-mass selective detector (GC-MSD) after cryogenic preconcentration. Benzene, toluene, ethylbenzene and xylenes (BTEX) at the platforms and mezzanines inside the stations averaged (10.3 +/- 2.1), (38.7 +/- 9.0), (19.4 +/- 10.1) and (30.0 +/- 11.1) microg/m3, respectively; while trichloroethylene (TrCE), tetrachloroethylene (TeCE) and para-dichlorobenzene (pDCB), vinyl chloride and carbon tetrachloride were the most abundant chlorinated hydrocarbons inside the stations with average levels of (3.6 +/- 1.3), (1.3 +/- 0.5), (4.1 +/- 1.1), (2.2 +/- 1.1) and (1.2 +/- 0.3) microg/m3, respectively. Mean levels of major aromatic and chlorinated hydrocarbons were higher indoor (platforms and mezzanines) than outdoor with average indoor/outdoor (I/O) ratios of 1.1-9.5, whereas no significant indoor/outdoor differences were found except for benzene and TrCE. The highly significant mutual correlations (p < 0.01) for BTEX between indoor and outdoor and their significant correlation (p < 0.05) with methyl tert-butyl ether (MTBE), a marker of traffic-related emission without other indoor and outdoor sources, indicated that BTEX were introduced into the subway stations from indoor/outdoor air exchange and traffic emission should be their dominant source. TrCE and pDCB were mainly from indoor emission and TeCE might have both indoor emission sources and contribution from outdoor air, especially in the mezzanines. |
| Doi | 10.1016/s1001-0742(11)60736-5 |
| Pmid | 22783624 |
| Wosid | WOS:000299658200016 |
| Url | http://linkinghub.elsevier.com/retrieve/pii/S1001074211607365 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Potential Matches To This Reference: 1057342 5243447 5247111 Potential Matches To This Reference: 1057342 5243447 5247111 |
| Is Public | Yes |
| Language Text | English |
| Keyword | subway; volatile organic compounds; aromatic hydrocarbons; chlorinated hydrocarbons; methyl tert-butyl ether; Shanghai |
| Relationship(s) |
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