Hexachlorobenzene in the global environment: Emissions, levels, distribution, trends and processes

Barber, Jonathan L.; Sweetman, Andrew J.; Wijk, Dolf Van; Jones, Kevin C.

doi:10.1016/j.scitotenv.2005.03.014

Cited by 399 publications

(284 citation statements)

References 223 publications

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“…So it has been used as a reference compound to obtain a series of sampler-specific constant sampling rates R based on its constant amount in a certain region, further to convert the PAS-based amounts into volumetric air concentrations . In this study, an average air concentration value of 56 pg m À3 for HCB was assumed to prevail in the air of the Shergyla Mountain throughout the sampling year Su et al, 2006), which is also consistent with those in rural/ background sites in Western China (Cheng et al, 2007) and the representative value of HCB air level in Northern hemispheric background conditions (Barber et al, 2005;Su et al, 2006). The average sampler specific sampling rates R calculated in present study was 2.71 AE 0.77 m 3 day À1 and close to the R-values determined previously in the Tibetan Plateau Wang et al, 2010).…”

Section: Volumetric Air Concentrations Calculationsupporting

confidence: 73%

Environmental fate and behavior of persistent organic pollutants in Shergyla Mountain, southeast of the Tibetan Plateau of China

Zhu

Schramm

Wang

et al. 2014

Environmental Pollution

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a b s t r a c tPristine mountains are ideal settings to study transport and behavior of persistent organic pollutants (POPs) along gradients of climate and land cover. The present work investigated the concentrations and patterns of 28 organochlorine pesticides (OCPs), 25 polychlorinated biphenyl (PCBs), 13 polybrominated diphenyl ethers (PBDEs), and 3 hexabromocyclododecane (HBCDs) isomers in the air of the Shergyla Mountain, southeastern Tibetan Plateau. Endosulfan _, hexachlorobenzene, pentachlorobenzene, hexachlorocyclohexanes and dichlorodibenzotrichloroethane and its degradation products (DDTs) were the predominant compounds while PBDEs and HBCDs showed the lowest background concentrations. Most of the target POPs had significantly higher concentrations in summer than those in winter. Increasing trends of the concentrations of DDTs and endosulfan were found with increasing altitude on the western slope in the Shergyla Mountain. Potential forest filter effect was observed based on the lower air concentrations of the target POPs in the forest than the ones out of the forest.

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Section: Volumetric Air Concentrations Calculationsupporting

confidence: 73%

Environmental fate and behavior of persistent organic pollutants in Shergyla Mountain, southeast of the Tibetan Plateau of China

Zhu

Schramm

Wang

et al. 2014

Environmental Pollution

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“…PCBs are anthropogenic environmental pollutants, which originate from the recycling procedures or dumping of electronic wastes (Shen et al 2009;Liu et al 2008). CBs, especially hexachlorobenzene, had a lot of applications in industry and agriculture (Barber et al 2005). In China, it was used as a cheap broad spectrum insecticide (Jiang et al 2000).…”

Section: Introductionmentioning

confidence: 99%

Dechlorination and organohalide-respiring bacteria dynamics in sediment samples of the Yangtze Three Gorges Reservoir

Kranzioch

Stoll

Holbach

et al. 2013

Environ Sci Pollut Res

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Several groups of bacteria such as Dehalococcoides spp., Dehalobacter spp., Desulfomonile spp., Desulfuromonas spp., or Desulfitobacterium spp. are able to dehalogenate chlorinated pollutants such as chloroethenes, chlorobenzenes, or polychlorinated biphenyls under anaerobic conditions. In order to assess the dechlorination potential in Yangtze sediment samples, the presence and activity of the reductively dechlorinating bacteria were studied in anaerobic batch tests. Eighteen sediment samples were taken in the Three Gorges Reservoir catchment area of the Yangtze River, including the tributaries Jialing River, Daning River, and Xiangxi River. Polymerase chain reaction analysis indicated the presence of dechlorinating bacteria in most samples, with varying dechlorinating microbial community compositions at different sampling locations. Subsequently, anaerobic reductive dechlorination of tetrachloroethene (PCE) was tested after the addition of electron donors. Most cultures dechlorinated PCE completely to ethene via cis-dichloroethene (cis-DCE) or trans-dichloroethene. Dehalogenating activity corresponded to increasing numbers of Dehalobacter spp., Desulfomonile spp., Desulfitobacterium spp., or Dehalococcoides spp. If no bacteria of the genus Dehalococcoides spp. were present in the sediment, reductive dechlorination stopped at cis-DCE. Our results demonstrate the presence of viable dechlorinating bacteria in Yangtze samples, indicating their relevance for pollutant turnover. Responsible editor: Robert DuranElectronic supplementary material The online version of this article

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“…HCB has a broad range of toxic effects on experimental animals, including hepatotoxicity, immune suppression, neurotoxicity, disturbance of thyroid function, reproductive toxicity and carcinogenicity (ATSDR, 2002). Because of its chemical stability, persistence, and long-range transport, HCB can be found throughout the environment (IPCS, 1997;Barber et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effects of hexachlorobenzene on antioxidant status of liver and brain of common carp (Cyprinus carpio)

2006

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Hexachlorobenzene in the global environment: Emissions, levels, distribution, trends and processes

Cited by 399 publications

References 223 publications

Environmental fate and behavior of persistent organic pollutants in Shergyla Mountain, southeast of the Tibetan Plateau of China

Environmental fate and behavior of persistent organic pollutants in Shergyla Mountain, southeast of the Tibetan Plateau of China

Dechlorination and organohalide-respiring bacteria dynamics in sediment samples of the Yangtze Three Gorges Reservoir

Effects of hexachlorobenzene on antioxidant status of liver and brain of common carp (Cyprinus carpio)

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