Screening ecological risk assessment of persistent organic pollutants in Mediterranean sea sediments

Gómez-Gutiérrez, Anna; Garnacho, Eva; Bayona, Josep M.; Albaigés, Joan

doi:10.1016/j.envint.2007.04.002

Cited by 107 publications

(42 citation statements)

References 46 publications

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“…By comparison with the SQGs published by MacDonald et al (1996), it was noted that the concentrations of DDTs at five sites (AHS-03, AHS-10, AHS-14, AHS-15, AHS-17) all exceeded the TEL. Based on threshold effect concentrations (TEC) and the probable effect concentrations (PEC) (Gomez-Gutierrez et al, 2007), the evaluated risk of DDT congeners was similar to the result derived by comparison with the TEL and PEL. The five detected concentrations of HCB were between the TEC and the PEC, which indicated some hazard and need more detailed research.…”

Section: Adverse Effects Of Pfass and Ocps In The Huaihe Watershedmentioning

confidence: 53%

Perfluoroalkyl substances and organochlorine pesticides in sediments from Huaihe watershed in China

Meng

Wang

et al. 2014

Journal of Environmental Sciences

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Section: Adverse Effects Of Pfass and Ocps In The Huaihe Watershedmentioning

confidence: 53%

Perfluoroalkyl substances and organochlorine pesticides in sediments from Huaihe watershed in China

Meng

Wang

et al. 2014

Journal of Environmental Sciences

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“…Furthermore, at sites S11 and S16, the p,p′-DDT, p,p′-DDE, and p,p′-DDD concentrations exceeded the PEL values. With regards to HCB, sites S16 and S17 showed higher levels than the probable effect concentration (PEC) and the HCB level at S17 also exceed the extreme effect concentration (EEC) reported by Gómez-Gutiérrez et al (2007). These results indicated that although the production and application of some OCPs has been banned for decades in this region, the environmental impacts of this legacy contamination may require continued attention because of their persistence in the environment.…”

Section: Ecotoxicological Implications Of Pop Contaminationmentioning

confidence: 78%

“…The ISQG represents the chemical concentration below which an adverse effect would rarely be observed, whereas the PEL is the concentration above which an adverse effect would be expected to occur frequently. HCB data were compared with the sediment quality guideline (SQGs) reported by Gómez-Gutiérrez et al (2007) (see Fig. 5) because the CCME (2002) did not include a guideline value for HCB in sediment.…”

Section: Ecotoxicological Implications Of Pop Contaminationmentioning

confidence: 99%

Levels and distribution of PCDD/Fs, dl-PCBs, and organochlorine pesticides in sediments from the lower reaches of the Haihe River basin, China

Zheng

Gao

et al. 2012

Environ Monit Assess

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The concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs), and organochlorine pesticides (OCPs) in surface sediments from the lower reaches of the Haihe River basin, northern China, were determined by high-resolution gas chromatograph-high-resolution mass spectrometer. The concentrations of 2,3,7,8-substituted PCDD/Fs, dl-PCBs, and total OCPs [sum of hexachlorobenzene, hexachlorocyclohexanes, and dichlorodiphenyltrichloroethane (DDTs)] in 17 sediment samples were in the ranges of 11.6-1,180,924 pg/g dry weight (dw), 18.7-50,017 pg/g dw, and 1.7-35,280 ng/g dw, respectively. The contamination levels in the samples varied significantly between the different sites. Abnormally high concentrations of PCDD/Fs, dl-PCBs, and some OCPs were found in sediments from the lower reaches of the main channel of the Haihe River and the Dagu Drainage River, which were attributed to the historical production of pentachlorophenol and other pesticides near these locations. High levels of DDTs were detected in the Yongding New River sediment, which were likely to have originated from the discharge of wastewater from a dicofol factory upstream. In samples taken from other sites, the concentrations of these pollutants were at levels comparable to those documented in other areas of China. This preliminary investigation suggests that historical pesticide production in the Haihe River basin has contributed significantly to the contamination of this aquatic ecosystem and that further attention to this issue is warranted.

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“…In aquatic ecosystems, PCDD/Fs are strongly particle-associated due to their hydrophobic properties and tend to accumulate in sediments. Like other POPs, contamination status of PCDD/Fs in sediment is very important to the environmental safety of aquatic ecosystems (Gomez-Gutierrez et al 2007).…”

mentioning

confidence: 99%

Contamination status of dioxins in sediment cores from the Three Gorges Dam area, China

Chen

Zhu

et al. 2013

Environ Sci Pollut Res

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In order to screen dioxin pollution in sediment of Three Gorges Dam (TGD) area, three sediment cores were obtained from two sites in 2010~2011; each core was divided into different samples with every 10 cm depth. Sediment dating determined by radiometry ( It could be concluded that the distribution of dioxins showed the spatial heterogeneous which resulted from the strong mixing and sediment deposition characteristics. Dioxin concentration in sediment cores was low with very low environmental risk potential. Dioxins at the two sites had the same origin, and exogenous input was the main source. It is the first report on the dioxins concentrations in sediment cores in the TGD area.

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Screening ecological risk assessment of persistent organic pollutants in Mediterranean sea sediments

Cited by 107 publications

References 46 publications

Perfluoroalkyl substances and organochlorine pesticides in sediments from Huaihe watershed in China

Perfluoroalkyl substances and organochlorine pesticides in sediments from Huaihe watershed in China

Levels and distribution of PCDD/Fs, dl-PCBs, and organochlorine pesticides in sediments from the lower reaches of the Haihe River basin, China

Contamination status of dioxins in sediment cores from the Three Gorges Dam area, China

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