Residues and enantiomeric profiling of organochlorine pesticides in sediments from Yueqing Bay and Sanmen Bay, East China Sea

Yang, Huayun; Xue, Bin; Yu, Peng; Zhou, Shanshan; Liu, Weiping

doi:10.1016/j.chemosphere.2010.04.052

Cited by 63 publications

(39 citation statements)

References 52 publications

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“…Previous studies carried out in the rivers or estuary environment often found that β-HCH was dominant in sediments (Kaushik et al, 2008;Said et al, 2008;Yang et al, 2010;Zhang et al, 2003;Zhong et al, 2011;Zhou et al, 2006). However, γ-and α-HCH also make large contributions to the levels of ΣHCHs in this study.…”

Section: Ocp Distribution In Surface Sediments and Sediment Corecontrasting

confidence: 44%

Spatial and temporal variations of organochlorine pesticides (OCPs) in water and sediments from Honghu Lake, China

Yuan

Qi²,

et al. 2013

Journal of Geochemical Exploration

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Section: Ocp Distribution In Surface Sediments and Sediment Corecontrasting

confidence: 44%

Spatial and temporal variations of organochlorine pesticides (OCPs) in water and sediments from Honghu Lake, China

Yuan

Qi²,

et al. 2013

Journal of Geochemical Exploration

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“…γ-HCH may be readily photo-converted to α-HCH, and both α-HCH and γ-HCH can be gradually converted to β-HCH. Thus, β-HCH would be predominant in the environment without fresh inputs of technical-grade HCH or lindane (Yang et al, 2010). The percentages of α-HCH, β-HCH, γ-HCH and δ-HCH were 40.4%, 39.3%, 18.1% and 2.2%, respectively, in the surface seawater and 42.9%, 24.8%, 20.4% and 11.9%, respectively, in the surface sediment of the JBMA.…”

Section: Discussionmentioning

confidence: 98%

Distribution and ecological risk assessment of HCHs and DDTs in surface seawater and sediment of the mariculture area of Jincheng Bay, China

Sun

Song

et al. 2015

J. Ocean Univ. China

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The distribution of hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) in the surface seawater and sediment of Jincheng Bay mariculture area were investigated in the present study. The concentration of total HCHs and DDTs ranged from 2.98 to 14.87 ng L −1 and were < 0.032 ng L −1 , respectively, in surface seawater, and ranged from 5.52 to 9.43 and from 4.11 to 6.72 ng g −1 , respectively, in surface sediment. It was deduced from the composition profile of HCH isomers and DDT congeners that HCH residues derived from a mixture of technical-grade HCH and lindane whereas the DDT residues derived from technical-grade DDT and dicofol. Moreover, both HCH and DDT residues may mainly originate from historical inputs. The hazard quotient of α-HCH, β-HCH, γ-HCH and δ-HCH to marine species was 0.030, 0.157, 3.008 and 0.008, respectively. It was estimated that the overall probability of adverse biological effect from HCHs was less than 5%, indicating that its risk to seawater column species was low. The threshold effect concentration exceeding frequency of γ-HCH, p,p '-DDD, p,p'-DDE and p,p'-DDT in sediment ranged from 8.3% to 100%, and the relative concentration of the HCH and DDT mixture exceeded their probable effect level in sediment. These findings indicated that the risk to marine benthos was high and potentially detrimental to the safety of aquatic products, e.g., sea cucumber and benthic shellfish.

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“…And all solvents used were of HPLC. The sample extraction and cleanup procedures have been described in detail elsewhere (Yang et al 2010). Briefly, a 10 g freeze-dried sediment sample was spiked with surrogate standards (TCmX and PCB 209) and extracted in a Soxhlet apparatus.…”

Section: Methodsmentioning

confidence: 99%

Residues, Sources and Potential Biological Risk of Organochlorine Pesticides in Surface Sediments of Qiandao Lake, China

Yang

Zhou

et al. 2015

Bull Environ Contam Toxicol

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Sediment samples were analyzed to comprehensively characterize the concentrations, distribution, possible sources and potential biological risk of organochlorine pesticides in Qiandao Lake, China. Concentrations of sumHCH and sumDDT in sediments ranged from 0.03 to 5.75 ng/g dry weight and not detected to 14.39 ng/g dry weight. The predominant β-HCH and the α-HCH/γ-HCH ratios indicated that the residues of HCHs were derived not only from historical technical HCH use but also from additional usage of lindane. Ratios of o,p'-DDT/p,p'-DDT and DDD/DDE suggested that both dicofol-type DDT and technical DDT applications may be present in most study areas. Additionally, based on two sediment quality guidelines, γ-HCH, o,p'-DDT and p,p'-DDT could be the main organochlorine pesticides species of ecotoxicological concern in Qiandao Lake.

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Residues and enantiomeric profiling of organochlorine pesticides in sediments from Yueqing Bay and Sanmen Bay, East China Sea

Cited by 63 publications

References 52 publications

Spatial and temporal variations of organochlorine pesticides (OCPs) in water and sediments from Honghu Lake, China

Spatial and temporal variations of organochlorine pesticides (OCPs) in water and sediments from Honghu Lake, China

Distribution and ecological risk assessment of HCHs and DDTs in surface seawater and sediment of the mariculture area of Jincheng Bay, China

Residues, Sources and Potential Biological Risk of Organochlorine Pesticides in Surface Sediments of Qiandao Lake, China

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