Occurrence of polychlorinated naphthalenes, polychlorinated biphenyls and short-chain chlorinated paraffins in marine sediments from Barcelona (Spain)

Castells, Pere Arqué; Parera, J.; Santos, F.J.; Galcerán, M.T.

doi:10.1016/j.chemosphere.2007.08.034

Cited by 108 publications

(47 citation statements)

References 60 publications

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“…Tomy et al 17 observed a trend with enrichment of C 10 congeners and decrease of C 12 congeners at the lower layers of dated sediment cores from Fox Lake. Similarity, Zeng et al 18 found the increase of short chain and low chlorinated congeners (C 10 Cl 5À6 ) and the decrease of long-chain and high chlorinated congeners (C 11À12 Cl 7À8 ) with depth of sediment core from Gaobeidian Lake, northern China. These studies suggested that possible microbial mediated transformation of SCCPs occurred in sediments.…”

Section: ' Introductionsupporting

confidence: 53%

Chlorinated Paraffins in Sediments from the Pearl River Delta, South China: Spatial and Temporal Distributions and Implication for Processes

Chen

Luo

Zhang

et al. 2011

Environ. Sci. Technol.

160

133

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b S Supporting Information ' INTRODUCTION Chlorinated paraffins (CPs) with the formula (C n H 2n+2-z Cl z ) are subdivided into short-chain (C 10 ÀC 13 , SCCPs), mediumchain (C 14 ÀC 17 , MCCPs) and long-chain (C > 17, LCCPs) according to their carbon chain length, where chlorine content ranges from 10% to 72%. 1 Because of their chemical and thermal stability, CPs were widely used as additives in lubricants, as cutting fluids for metal working, as plasticizers and flame retardants in plastics, sealants, and leather. 2 As high production volume chemicals, CPs are inevitably released into the environment during their production, transportation, and usage. CPs have been detected in various environmental matrices including water, sediment, air, soil, biota ,and human beings. 1 It is also suggested that CPs are bioaccumulated and biomagnified in food webs. 3 CPs, especially SCCPs, have attracted increasing attentions in the past decade as they represent a potential "new" category of persistent organic pollutants (POPs). 4 The European Union restricted the usage of SCCPs via the Water Framework Directive based on the SCCP risk assessment. 5,6 Furthermore, SCCPs have been banned for use in Germany since 2003. 1

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Section: ' Introductionsupporting

confidence: 53%

Chlorinated Paraffins in Sediments from the Pearl River Delta, South China: Spatial and Temporal Distributions and Implication for Processes

Chen

Luo

Zhang

et al. 2011

Environ. Sci. Technol.

160

133

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“…The results were also in the range of data found in sediments from tropical areas in Asia: the Mekong River delta in Vietnam (Carvalho et al, 2008) and riverine and coastal waters of Surabaya in Indonesia (Ilyas et al, 2011). The levels were lower compared to concentrations reported for industrialized areas in Europe and United States of America (Covaci et al, 2005;Vane et al, 2007;Vives et al, 2007;Castells et al, 2008;Jiao et al, 2009;Martinez et al, 2010;Mohammed et al, 2011) (Table 2). The proportion of the 6 indicator PCBs (Σ 6 PCBs) to Σ 18 PCBs in this study were between 80 and 88% (with a mean value of 84%).…”

Section: Statistical Data Analysismentioning

confidence: 69%

Polychlorinated biphenyls in sediments and fish species from the Murchison Bay of Lake Victoria, Uganda

Ssebugere

Sillanpää

Wang

et al. 2014

Science of The Total Environment

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• High concentrations of PCBs were found at sites near wastewater discharges.• The PCB concentrations were low to moderate compared to other locations worldwide.• Based on the European Commission set TEQ, the fish were fit for human consumption. Polychlorinated biphenyls (PCBs) were determined in sediments and two fish species collected from the Murchison Bay in Lake Victoria, using high resolution gas chromatography coupled to a high resolution mass spectrometer. Total PCB concentrations (Σ 18 PCBs) varied widely with mean values ranging from 777 to 4325 pg g −1 dry weight (dw) for sediments and 80 to 779 pg g −1 wet weight (ww) for fish. The PCB levels in the sediments were significantly higher at the station closest to Nakivubo channel, presumably due to effluents discharged by the channel, which may contain domestically produced commercial PCB mixtures. For fish, the concentrations in Nile perch (Lates niloticus) were significantly greater than those in Nile tilapia (Oreochromis niloticus) at all study stations, possibly due to dietary differences among species. World Health Organization-toxic equivalents (WHO 2005 -TEQs) for the dioxin-like PCBs were 0.04-0.64 pg g −1 dw and 0.01-0.39 pg g −1 ww for sediments and fish, respectively. The non-ortho PCBs exhibited the highest contribution to the Σ 12 TEQs (N75%) compared to the mono-ortho PCBs in both fish species. The TEQs in the present study were lower than many reported worldwide in literature for fish and were within the permissible level recommended by the European Commission, implying that the fish did not pose health hazards related to PCBs to the consumers. a b s t r a c t a r t i c l e i n f o

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“…Pan et al investigated PCN concentrations in sediments collected from Qingdao coast sites with a concentration of 0.2e1.2 ng g À1 dw, similar with the PCN levels in marine sediments of Laizhou Bay found in our study (Pan et al, 2007). Compared to PCN levels in sediments found in other regions (Table 1), such as backgrounds in Sweden (0.14e7.6 ng g À1 dw) (Jaernberg et al, 1993), Venice lagoon (0.03e1.51 ng g À1 dw) (Eljarrat et al, 1999), Gdansk basin of Batic Sea (6.7 ng g À1 dw) (Falandysz et al, 1996), Gulf of Bothnia (0.27e2.8 ng g À1 dw) (Lundgren et al, 2003), coast of Barcelona (0.17e3.27 ng g À1 dw) (Castells et al, 2008), lake Ontario (21e38 ng g À1 dw) (Helm et al, 2008), Tokyo bay (1.81 ng g À1 dw) (Yamashita et al, 2000b), PCN levels in marine sediment of Laizhou Bay were at the lowest end of the range, while the levels in the rivers were similar with many studies in Europe, including the background sites, bays and coastal sites.…”

Section: Pcn Concentrations and Geographical Distributionmentioning

confidence: 92%

“…In addition to the release from historical usage of technical formulations, PCNs are also leaked out from impurities of technical PCB preparations and from unlawfully usage in recent years (Falandysz, 1998;Yamashita et al, 2000a). Despite of the phasing out of technical CN formulations, PCNs were detected in sites near chemical industries, such as Chlor-Alkali plants, petrochemical industries, metal refineries, municipal waste incineration plant, and etc (Ba et al, 2010;Brack et al, 2003;Castells et al, 2008;Helm and Bidleman, 2003;Jansson et al, 2008;Kannan et al, 1998;Liu et al, 2010;Llobet et al, 2007). Researches have also shown that PCNs can be unintentionally formed and released through thermal processes such as municipal waste incineration and nonferrous metallurgy process (Jansson et al, 2008;Oh et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Polychlorinated naphthalenes (PCNs) in riverine and marine sediments of the Laizhou Bay area, North China

Pan

Tang

Chen

et al. 2011

Environmental Pollution

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a b s t r a c t PCN congeners were analyzed in marine and riverine sediments of the Laizhou Bay area, North China. Concentrations of PCNs ranged from 0.12 to 5.1 ng g À1 dry weight (dw) with a mean value of 1.1 ng g À1 dw.The levels of PCNs varied largely, with industrial group approximately ten folds higher than those of the rural in riverine sediment. A strong impact by direct discharge from local factories was suggested. Similar compositional profiles were found within groups. High resemblance of compositional profiles between industrial samples and Halowax 1014 was observed. It was indicated that PCNs in riverine sediments were mainly from release of industrial usage, with additional contributions from industrial thermal process at certain sites. In marine sediments, it was suggested that PCNs along the coast of Laizhou Bay were mainly controlled by riverine input. While in the central bay, PCN distributions were possibly impacted by combined multiple factors.

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Occurrence of polychlorinated naphthalenes, polychlorinated biphenyls and short-chain chlorinated paraffins in marine sediments from Barcelona (Spain)

Cited by 108 publications

References 60 publications

Chlorinated Paraffins in Sediments from the Pearl River Delta, South China: Spatial and Temporal Distributions and Implication for Processes

Chlorinated Paraffins in Sediments from the Pearl River Delta, South China: Spatial and Temporal Distributions and Implication for Processes

Polychlorinated biphenyls in sediments and fish species from the Murchison Bay of Lake Victoria, Uganda

Polychlorinated naphthalenes (PCNs) in riverine and marine sediments of the Laizhou Bay area, North China

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