Comparative distribution, sourcing, and chemical behavior of PCDD/Fs and PCBs in an estuary environment

Howell, Nathan; Rifai, Hanadi S.; Koenig, L.A.

doi:10.1016/j.chemosphere.2011.02.082

Cited by 34 publications

(8 citation statements)

References 44 publications

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“…The HSC is associated with pulp and paper mills, shipping, and petrochemical refineries, along with other industrial activities that have been identified as potential sources of PCDD/Fs and other organic contaminants. Previous studies focused on the HSC (Correa et al 2006, Correa et al 2004, Dean et al 2009, Howell et al 2011, Raun et al 2005, Rifai et al 2013, Suarez et al 2006a, Suarez et al 2006b, Yeager et al 2007 have all reported the widespread presence of dioxin in its water, sediment, tissue, and air.…”

Section: Study Areamentioning

confidence: 99%

Occurrence and distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in industrial and domestic sewage sludge

Balasubramani

Rifai

2015

Environ Sci Pollut Res

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Sewage sludge samples collected from 43 different domestic and industrial wastewater treatment plants and petrochemical industries that discharge to the Houston Ship Channel (HSC) were analyzed for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs), which are highly toxic and carcinogenic towards humans and animals. The measured total PCDD/F toxic equivalency (TEQ) ranged between 0.73 and 7348.40 pg/g dry weight. The mean TEQ of PCDD/Fs in industrial sludge was approximately 40 times higher than that in sewage sludge. The PCDD homolog concentrations in the industrial samples were higher than those observed at the wastewater treatment plants by a factor of 10, with total heptachlorodibenzodioxin (HpCDD) exhibiting the maximum concentration in most of the samples. Among the PCDF homologs, total heptadichlorodibenzofuran (HpCDF) dominated the total homolog concentration in sludge from the wastewater treatment plants, whereas total tetradichlorodibenzofuran (TeCDF) dominated the industrial sludge samples. Overall, the total PCDD/F TEQ in sludge samples was much higher than that in effluent samples from the same facility. A linear correlation (R (2) = 0.62, p value < 0.068) was found indicating that sludge sampling can be used as a surrogate for effluent concentrations in wastewater treatment plants but not for industrial discharges.

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Section: Study Areamentioning

confidence: 99%

Occurrence and distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in industrial and domestic sewage sludge

Balasubramani

Rifai

2015

Environ Sci Pollut Res

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“…In the dry season, BSAF and BAF values were the same except BSAF of PBDEs in fish from zone 1 (Table 2). Howell NL et al [43] noted that the mobility and reproductive behavior of an aquatic organism could influence the extent of bioaccumulation of contaminants.…”

Section: Occurrence and Bioaccumulation Of Pbdes In Sarotherodon Melanotheronmentioning

confidence: 99%

Levels, Spatial and Seasonal Distribution of Polybrominated Diphenyl Ethers (PBDEs) in Water, Sediments and Sarotherodon melanotheron from Ologe Lagoon

Umulor¹,

Obanya²,

Amaeze³

et al. 2018

AJEE

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Polybrominated diphenyl ethers (PBDEs) are chemical additives of increasing concern in water bodies associated with industrial and urban areas. In this study, they were quantified in sediments, surface water and Black Chin Tilapia, Sarotherodon melanotheron from three sampling zones of Ologe Lagoon, Nigeria. The lagoon receives effluents and runoffs from the neighbouring industrial town of Agbara. Quantification of PBDE congeners in the samples was done using a gas chromatograph coupled electron capture detector (GC-ECD). Sediment ∑PBDEs levels of 0.05±0.006 to 0.09±0.006 ng/g were below Environment Canada's (EC's) safe limit (6124 ng/g) while levels in water ranged from 0.01±0.003 to 0.02±0.005 mg/L and were above EC's safe limit (0.0002 mg/L). ∑PBDEs levels in the Tilapia ranged from 0.06±0.01 to 0.12±0.01 ng/g and were below EC's safe limit (631 ng/g). There was no significant (P > 0.05) seasonal variation of ∑PBDEs concentrations in the assessed fish. The low levels of PBDEs in Sarotherodon melanotheron

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“…Over the past few years, many studies focusing on PCDD/Fs or DL-PCBs have been conducted in different coastal sea areas and estuaries around the world (Birch et al, 2007;Howell et al, 2011;Ishaq et al, 2009;Kannan et al, 2007;Salo et al, 2008;Sundqvist et al, 2010;Verta et al, 2007). In China, studies have been carried out for estuaries such as the Yellow River Estuary (Hui et al, 2009), Yangtze River Estuary (Hui et al, 2009;Wen et al, 2008), Pearl River Delta (Zhang et al, 2009) and other coastal sea areas such as Hong Kong (Mũller et al, 2002), Bohai Bay (Hu et al, 2005), Jiaozhou Bay (Pan et al, 2008) and the Yellow Sea (Pan et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Concentrations, distribution and sources of polychlorinated dibenzo-p-dioxins and dibenzofurans and dioxin-like polychlorinated biphenyls in coastal sediments from Xiamen, China

et al. 2016

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Comparative distribution, sourcing, and chemical behavior of PCDD/Fs and PCBs in an estuary environment

Cited by 34 publications

References 44 publications

Occurrence and distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in industrial and domestic sewage sludge

Occurrence and distribution of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in industrial and domestic sewage sludge

Levels, Spatial and Seasonal Distribution of Polybrominated Diphenyl Ethers (PBDEs) in Water, Sediments and Sarotherodon melanotheron from Ologe Lagoon

Concentrations, distribution and sources of polychlorinated dibenzo-p-dioxins and dibenzofurans and dioxin-like polychlorinated biphenyls in coastal sediments from Xiamen, China

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