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Int. J. Environ. Res. Public Health 2015, 12(12), 16070-16081; doi:10.3390/ijerph121215043

A Survey of 42 Semi-Volatile Organic Contaminants in Groundwater along the Grand Canal from Hangzhou to Beijing, East China

National Research Center for Geoanalysis, Chinese Academy of Geological Sciences, Beijing 100037, China
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Author to whom correspondence should be addressed.
Academic Editor: Miklas Scholz
Received: 4 August 2015 / Revised: 8 December 2015 / Accepted: 8 December 2015 / Published: 18 December 2015
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Abstract

The status of organic pollution in groundwater in eastern China along the Grand Canal from Hangzhou to Beijing was evaluated. Forty-two semi-volatile organic contaminants were analyzed, including 16 polycyclic aromatic hydrocarbons (PAHs), seven polychlorinated biphenyls (PCBs), 12 organochlorine pesticides (OCPs) and seven organophosphorus pesticides (OPPs). Among the detected contaminants, PAHs were the most widespread compounds. One PCB and six OCPs were detected in the groundwater samples, but none of the target OPPs was detected. The total concentration of the 16 PAHs ranged from 0.21 to 1006 ng/L, among which phenanthrene (271 ng/L) and fluoranthene (233 ng/L) were present at very high concentrations and naphthalene (32 positive detections in 50 samples) and fluorene (28 detections in 50 samples) were the most frequently detected. Benzo[a]pyrene equivalents indicated a high environmental risk related to PAHs in a few groundwater samples. To identify the possible sources of PAHs, three concentration ratios, low molecular weight PAHs/high molecular weight PAHs, anthracene/(anthracene + phenanthrene) and fluoranthene/(fluoranthene + pyrene), were determined, that indicated that the PAHs mainly originated from mixed sources: pyrolytic and petrogenic sources with different ratios at different sites. View Full-Text
Keywords: trace organic contaminants; groundwater; East China; environmental risk assessment trace organic contaminants; groundwater; East China; environmental risk assessment
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, X.; Rao, Z.; Yang, Z.; Guo, X.; Huang, Y.; Zhang, J.; Guo, F.; Liu, C. A Survey of 42 Semi-Volatile Organic Contaminants in Groundwater along the Grand Canal from Hangzhou to Beijing, East China. Int. J. Environ. Res. Public Health 2015, 12, 16070-16081.

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