Mobility and Profiles of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Sediment of Ya-Er Lake, China

Wu, Wenbo; Schramm, Karl‐Werner; Xu, Ying; Kettrup, A.

doi:10.1016/s0043-1354(00)00584-4

Cited by 31 publications

(11 citation statements)

References 19 publications

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“…This severe contamination of the river sediments adjacent to this abandoned PCP factory means that the PCDD/F levels around this site are much higher than reported in most other sites in China. The mean TEQ concentration in the river sediments was 220 times higher than levels recorded in the Liaohe River , 226 times higher than in the Pearl River Delta (Zhang et al, 2009), and was also greater than reported at some PCDD/F contamination sites such as Dongting Lake (0.7e11 pg I-TEQ/g) (Gao et al, 2008) and Ya-er Lake (Wu et al, 2001) (10e420 pg I-TEQ/g) in China.…”

Section: Concentrations and Distribution Of Pcdd/fs In Soils And Sedimentioning

confidence: 53%

“…Consequently, this historical contaminated site appears to represent both a current and future risk to the surrounding environment. Historical investigations on the status of this contaminated site had been focused on samples from the waste residues, soils and sediments collected within and around the plant when PCP (Na-PCP) was still being produced (Bao et al, 1994;Luksemburg et al, 1997;2001). However, few data are available to assess the current environmental effect of this historical contaminated site.…”

Section: Introductionmentioning

confidence: 99%

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Long-term persistence of polychlorinated dibenzo-p-dioxins and dibenzofurans in air, soil and sediment around an abandoned pentachlorophenol factory in China

Zheng

Zhang

et al. 2012

Environmental Pollution

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a b s t r a c tAir, soils and sediments surrounding an abandoned pentachlorophenol (PCP) factory were sampled to determine the levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), unintentionally formed during PCP production. The mean concentration of PCDD/Fs in ambient air was one order of magnitude higher than that of the reference site. A trend of decreasing concentrations with increasing distance from the factory was observed, suggesting this site has a significant influence on the regional ambient air. As for soil samples collected within 3 km from the factory and sediment samples from the adjacent rivers, high levels of contamination were found with WHO-TEQ concentrations of 193 AE 211 pg/ g and 667 AE 978 pg/g, respectively. The PCDD/F homologue profiles of all samples were consistent with those found in the technical product of PCP, with OCDD as the dominant congener. These results indicate PCDD/Fs in the historical contaminated site pose a long-term impact on surrounding environment.

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Section: Concentrations and Distribution Of Pcdd/fs In Soils And Sedimentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Long-term persistence of polychlorinated dibenzo-p-dioxins and dibenzofurans in air, soil and sediment around an abandoned pentachlorophenol factory in China

Zheng

Zhang

et al. 2012

Environmental Pollution

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“…The concentrations of PCDDs and PCDFs ranged from 110.8 to 222.9 pg/g dw and 185.4 to 245.7 pg/g dw, respectively. In comparison, total concentrations of PCDD/Fs were much lower than those in the heavily polluted sediments from Ya-er lake (China) (Wu et al, 2001) and at the same level to two rivers in Catalonia (Eljarrat et al, 2001a). The concentrations of 27 PCBs ranged from 32.0 to 76.6 ng/g dw, which were two or three orders of magnitude higher than those from sediments from Taihu Lake (China) ), and at the same level to Northwest Mediterranean sediments in Spain (Eljarrat et al, 2001b).…”

Section: Concentrations Of Pcbs Pcdds Pcdfs and Pahsmentioning

confidence: 84%

Characterization of aryl hydrocarbon receptor agonists in sediments of Wenyu River, Beijing, China

Luo

Zha

et al. 2009

Water Research

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PAHs H4IIE Sediment a b s t r a c tAryl hydrocarbon receptor agonistic (Ah-agonistic) effects of 23 sediments from Wenyu River in Beijing, China were evaluated using the H4IIE cell bioassay. Five samples were selected for chemical analysis of most concerned Ah-agonists, i.e. polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs). All raw sediment extracts induced significant Ah-agonistic effects, and the bioassay-derived 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) equivalents of raw extracts (TEQ raw s) ranged from 8.5 to 336.0 pg/g dry weight (dw). Chemical analysisderived TEQs (TEQ chem s) ranged from 20.5 to 64.8 pg/g dw. When raw extracts were purified by sulphuric acid silica gel column to derive acid stable fraction, the TCDD equivalents in this fraction (TEQ stable s) ranged from 2.7 to 63.8 pg/g dw. PCBs, PCDDs and PCDFs contributed about 51.4-72.1%, 1.2-7.3%, and 16.4-34.8% of TEQ stable s, respectively, and the sum was 69.1-108.6%. Therefore, about 65.0% of TEQ raw s could be attributed to acid labile fraction and only 3.3-9.6% to PAHs. These observations suggested that acid stable fraction and labile fraction contributed together to total Ah-agonistic effects in the sediments, and PCBs and PCDFs might be the two main components in acid stable Ah-agonists. The proposed approach using both H4IIE cell bioassay and chemical analysis could be used for characterization and prioritization of Ah-agonists in river sediments and helpful to the following progression of ecological remediation. ª 2009 Elsevier Ltd. All rights reserved. IntroductionAryl hydrocarbon receptor agonists (Ah-agonists), which include structurally diverse synthetic and naturally-occurring chemicals, are ubiquitous in the environment (Denison et al., 2002). Ah-agonists share a common mechanism of action in binding to the Ah receptor as a first step, and toxicities are produced as a result of changes in gene expression mediated Ah receptor or interference in its related signaling pathways (Safe, 1990). In the past decades, the major concerns on Ahagonistic effects were associated with dioxins and dioxin-like compounds which mainly referred to polyhalogenated aromatic hydrocarbons (PHAHs) including polychlorinated dibenzo-pdioxins (PCDDs), dibenzofurans (PCDFs), biphenyls (PCBs), naphthalenes (PCNs) and others (reviewed by Behnisch et al., 2001). These compounds have been shown to produce a number of toxic effects upon wildlife and human health due to both the persistent behavior and ability to bioaccumulate (Van den Berg w a t e r r e s e a r c h 4 3 ( 2 0 0 9 ) 2 4 4 1 -2 4 4 8

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“…High levels of dioxins have been reported in areas where this pesticide was used, e.g. in China [50][51][52].…”

Section: Polychlorinated Dibenzo-p-dioxins and Polychlorinated Dibenzmentioning

confidence: 99%

Persistent Organic Pollutants in the Developing World

Gevao

Alegria

Jaward

et al. 2009

Persistent Organic Pollutants

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Mobility and Profiles of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans in Sediment of Ya-Er Lake, China

Cited by 31 publications

References 19 publications

Long-term persistence of polychlorinated dibenzo-p-dioxins and dibenzofurans in air, soil and sediment around an abandoned pentachlorophenol factory in China

Long-term persistence of polychlorinated dibenzo-p-dioxins and dibenzofurans in air, soil and sediment around an abandoned pentachlorophenol factory in China

Characterization of aryl hydrocarbon receptor agonists in sediments of Wenyu River, Beijing, China

Persistent Organic Pollutants in the Developing World

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