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Emissions Of Pcbs And Mercury From Stabilized Harbor Sediments: Final Project Summary
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2006
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[PDF-1.82 MB]
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Description:The goals of this project were to assess the volatilization of polychlorinated biphenyls (PCBs) and mercury (Hg) from land-applied, stabilized dredge material (SDM), the effects of cement stabilization on the release of these contaminants, and potential impacts of land-applied SDM to the ambient air quality of placement sites and adjacent areas. Thus the first phase of this project (see Korfiatis et al., 2003) included in situ measurements of PCB and Hg concentrations and land-air fluxes at a site in Bayonne, New Jersey were SDM from the NY/NJ Harbor was placed. The results of that project demonstrated that PCBs and Hg were emitted from SDM, but pointed to gaps in our understanding of the sediment side controls of PCB and Hg volatilization, the aerosol partitioning of PCBs emitted from SDM, and the relative importance of SDM PCB emissions to the local atmosphere compared with other sources in the New York/New Jersey metropolitan area. The second phase of this project therefore included laboratory flux chamber measurements of PCB volatilization from cement-​stabilized Newtown Creek sediment (see Miskewitz et al., 2005), and evaluations of the gas phase-aerosol partitioning of PCBs at the Bayonne site, the development of a local atmospheric transport model of PCBs in the harbor atmosphere, and flux chamber studies of Hg volatilization from cement-​stabilized Berry's Creek sediment (see Reinfelder et al., 2006).
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Sea Grant Document Number:NJMSC-T-06-001
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Rights Information:Public Domain
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