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Sci Total Environ

Title:		The status of soil contamination by semivolatile organic chemicals (SVOCs) in China: a review
Author(s):		Cai QY; Mo CH; Wu QT; Katsoyiannis A; Zeng QY;
Address:		"College of Resources and Environment, South China Agricultural University, Guangzhou 510642, China. cai_quanying@yahoo.com"
Journal Title:		Sci Total Environ
Year:		2008
Volume:		20071022
Issue:		2-Mar
Page Number:		209 - 224
DOI:		10.1016/j.scitotenv.2007.08.026
ISSN/ISBN:		0048-9697 (Print) 0048-9697 (Linking)
Abstract:		"This paper summarizes the published scientific data on the soil contamination by semivolatile organic chemicals (SVOCs) in China. Data has been found for more than 150 organic compounds which were grouped into six classes, namely, polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polycyclic aromatic hydrocarbons (PAHs), polybrominated diphenyl ethers (PBDEs) and phthalic acid esters (PAEs). An overview of data collected from the literature is presented in this paper. The Chinese regulation and/or other maximum acceptable values for SVOCs were used for the characterization of soils. In general, the compounds that are mostly studied in Chinese soils are OCPs, PAHs and PCBs. According to the studies reviewed here, the most abundant compounds were PAEs and PAHs (up to 46 and 28 mg kg(-1) dry weight, respectively); PCBs and OCPs occurred generally at concentrations lower than 100 microg kg(-1) dry weight. Nevertheless, quite high concentrations of PCDD/Fs, PCBs and PBDEs were observed in contaminated sites (e.g., the sites affected by electronic waste activities). The average concentrations of PAHs and OCPs in soils of North China were higher than those in South China. The principal component analysis demonstrated different distribution patterns for PAH, PCB and PCDD/F congeners and for the various sites/regions examined. The isomer ratios of DDTs and hexachlorocyclohexanes (HCHs) indicated different sources and residue levels in soils. Finally, this review has highlighted several areas where further research is considered necessary"
Keywords:		China Environmental Monitoring Organic Chemicals/*analysis/chemistry Soil/*analysis/standards Soil Pollutants/*analysis/chemistry Volatilization;
Notes:		"MedlineCai, Quan-Ying Mo, Ce-Hui Wu, Qi-Tang Katsoyiannis, Athanasios Zeng, Qiao-Yun eng Research Support, Non-U.S. Gov't Review Netherlands 2007/10/16 Sci Total Environ. 2008 Jan 25; 389(2-3):209-24. doi: 10.1016/j.scitotenv.2007.08.026. Epub 2007 Oct 22"