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Presence of Semi‐Volatile Organic Contaminants in Shallow Groundwater of Selected Regions in China
Author(s) -
Chen Liang,
Jin Song,
Liu Yulong,
Liu Fei
Publication year - 2014
Publication title -
groundwater monitoring and remediation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 47
eISSN - 1745-6592
pISSN - 1069-3629
DOI - 10.1111/gwmr.12078
Subject(s) - heptachlor , groundwater , environmental chemistry , organochlorine pesticide , environmental science , yangtze river , plateau (mathematics) , china , hydrology (agriculture) , pesticide , geography , chemistry , archaeology , ecology , geology , biology , mathematical analysis , geotechnical engineering , mathematics
A pioneering investigation of semi‐volatile organic compounds ( SVOCs ) in shallow groundwater in China was hereby reported. Representative groundwater samples were collected from three selected regions: Eastern Hai River Plain, Yangtze River Delta, and Yunnan‐Guizhou Plateau, and analyzed for 103 SVOCs linked to agricultural and industrial practices. Analytical results showed that 70 of the 103 SVOCs were present in the groundwater samples, a detection frequency of approximately 86%. Compounds detected most frequently included P,P′‐ DDT (53.49%, MDL 0.0007 µg/L), 2,4‐dinitrotoluene (51.16%, MDL 0.02 µg/L), and phenol (51.16%, MDL 0.02 µg/L). Fifteen SVOCs , such as P,P′‐ DDT , 2,4‐dinitrotoluene, heptachlor, and aldrin, were detected at concentrations exceeding the USA National Recommended Water Quality Criteria‐2009 ( USNRWQC ‐2009). Most of these 15 SVOCs belong to polycyclic aromatic hydrocarbons and organochlorine pesticides. The detection of SVOCs in the Yunnan‐Guizhou Plateau warrants special concern, since this region has limited human activities and been assumed as an environmentally pristine area. The data from this work are expected to contribute to the database of contemporary groundwater quality in China.