Chlorinated Polycyclic Aromatic Hydrocarbons in Sediments from Industrial Areas in Japan and the United States

作者: Yuichi Horii , Takeshi Ohura , Nobuyoshi Yamashita , Kurunthachalam Kannan

DOI: 10.1007/S00244-009-9372-1

关键词: Persistent organic pollutantWater qualityDry weightBayPollutantWater pollutionSedimentEnvironmental chemistryPollutionEnvironmental science

摘要: Chlorinated polycyclic aromatic hydrocarbons (ClPAHs) are widespread environmental pollutants in the urban environment. Nevertheless, there is little information available regarding occurrence and profiles of ClPAHs matrices. In this study, residual concentrations 20 individual 16 US EPA-priority PAHs were determined using high- resolution gas chromatography-high-resolution mass spectrometry sediments from water bodies near industrialized areas: Tokyo Bay, Japan; Saginaw River watershed, Michigan, USA; a former chlor-alkali plant, Georgia, New Bedford Harbor Superfund site, Massachusetts, USA. A sediment core Bay showed temporal patterns distribution 1950s through 2004. The fluxes priority 0.029-0.57 ng/cm(2)/year 85-609 ng/cm(2)/year, respectively; lowest highest 1989-1990. United States, high mean concentration was found collected plant [8820 pg/g dry weight (dry wt)], lower for (1880 wt) watershed (1140 wt). Among ClPAHs, 6-ClBaP 1-ClPyr dominant compounds sediments; pattern similar to reported literature waste incineration ambient air samples. Significant correlation between SigmaClPAH Sigmaparent-PAH implies that sources directly related those parent PAHs. We also analyzed blue mussels Harbor. 21 ng/g lipid weight, three orders magnitude than Low-molecular-weight predominated mussel tissues. Toxic equivalents (TEQs) ranged 1.1 fg TEQ/g wt (Tokyo Bay) 2.4 (Saginaw watershed). dioxinlike toxicity contributed by contaminated areas five previously dioxins.

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