alexa Halogenated compounds, PCB and pesticides in landfill leachate, downstream lake sediments and fish.
Environmental Sciences

Environmental Sciences

International Journal of Waste Resources

Author(s): Haarstad K, Borch H

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Abstract Two environmental sampling campaigns have been conducted in order to study the diffusion of selected pollutants from municipal solid waste landfills. The first campaign included the freshwater fish species pike, perch and roach, sampled by electrofishing, the second campaign included sampling of leachate, groundwater, sediments and fish. The analyses included chlorinated and brominated chemicals and pesticides, in addition to Hg. The study also included a compilation of Norwegian leachate data. Brominated compounds occurred in leachate between 0.02-11.1 microg/L, PCB from 0.01-3.1 microg/L, pesticides from 0.5-110 microg/L, and Hg from 0.005-62 microg/L. In the first campaign the fish samples contained chlorinated aromatics in concentrations between 25-162 microg/kg lipid, PBDE from 44 to almost 21000 microg/kg, HCH from 18 to 30 microg/kg, DDT between 152 to almost 27000 microg/kg and PCB from 89 to 36501 microg/kg. The highest concentrations were found at location 5, especially in pike samples. In the second campaign, measured concentrations were lower. The sediment samples showed low values of Hg, and no traces of pesticides. The content of Hg in the fish samples was low. The content of PCB in the fish samples was significantly higher than previous measurements and varied between 570-930 microg/kg wet weight. The fish samples contained DDE in concentrations of 20-190 microg/kg WW, levelling with previous studies. The levels of brominated compounds were lower in campaign two than in the first one, varying between < 0.03 to 33 microg/kg dry matter in the sediments, from 0.03 to 239 microg/L in groundwater, from < 0.03 to 5.1 in leachate, and between < 0.03 to 31 microg/kg wet weight in fish samples. This article was published in J Environ Sci Health A Tox Hazard Subst Environ Eng and referenced in International Journal of Waste Resources

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