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Persistent organic pollutants and sedimentary organic matter properties: a case study in the Kishon River, Israel 总被引:1,自引:0,他引:1
The Kishon River, the second largest coastal river in Israel, has been severely polluted for several decades. Sediments from upstream and downstream sites of the river were analyzed, lipid-extracted and evaluated for phenanthrene uptake. Total polycyclic aromatic hydrocarbon (PAH) concentration in downstream sediments was 299 microg kg(-1), consisting mostly of petrogenic-derived PAHs. Downstream sedimentary lipids were found to be dominated by fresh and decomposed petroleum-derived n-alkanes. The total PAH concentration in upstream sediments was 173 microg kg(-1), consisting mostly of pyrogenic-derived PAHs, whereas lipids from these sediments were mostly vegetation-derived. Spectroscopic data suggested an exceptionally high aromatic content in downstream humic acid, which originated from PAHs attached to its structure. Sorption data suggested that upstream sedimentary cuticle-derived lipids function as a sorption domain, while downstream sedimentary lipids, consisting of shorter-chain-length petroleum-derived alkanes, compete with phenanthrene for sorption sites. 相似文献
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Widyatmika Made Adi Bolia Nomesh B. 《Journal of Material Cycles and Waste Management》2023,25(3):1608-1621
Journal of Material Cycles and Waste Management - The purpose of this study is to analyze citizen perceptions of composting and segregation in two case studies from Jakarta and Delhi. The framework... 相似文献