title: Global deposition of airborne dioxin.
abstract: We present a global dioxin model that simulates one year of atmospheric emissions, transport processes, and depositions to the earth's terrestrial and marine habitats. We map starting emission levels for each land area, and we also map the resulting deposits to terrestrial and marine environments. This model confirms that 'hot spots' of deposition are likely to be in northern Europe, eastern North America, and in parts of Asia with the highest marine dioxin depositions being the northeast and northwest Atlantic, western Pacific, northern Indian Ocean and the Mediterranean. It also reveals that approximately 40% of airborne dioxin emissions are deposited to marine environments and that many countries in Africa receive more dioxin than they produce, which results in these countries being disproportionately impacted. Since human exposure to dioxin is largely through diet, this work highlights food producing areas that receive higher atmospheric deposits of dioxin than others.
authors: Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver BC V6T-1Z4, Canada. Electronic address: shawnrgbooth@gmail.com.
authors: Shawn
authors: S
authors: Booth
authors: Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver BC V6T-1Z4, Canada. Electronic address: joe_pw_hui@telus.net.
authors: Joe
authors: J
authors: Hui
authors: Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver BC V6T-1Z4, Canada. Electronic address: z.alojado@fisheries.ubc.ca.
authors: Zoraida
authors: Z
authors: Alojado
authors: Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver BC V6T-1Z4, Canada. Electronic address: v.lam@fisheries.ubc.ca.
authors: Vicky
authors: V
authors: Lam
authors: Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver BC V6T-1Z4, Canada. Electronic address: w.cheung@fisheries.ubc.ca.
authors: William
authors: W
authors: Cheung
authors: Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver BC V6T-1Z4, Canada. Electronic address: d.zeller@fisheries.ubc.ca.
authors: Dirk
authors: D
authors: Zeller
authors: UBC Department of Earth and Ocean Sciences, 6339 Stores Road, Vancouver BC V6Y-1Z4, Canada. Electronic address: dsteyn@eos.ubc.ca.
authors: Douw
authors: D
authors: Steyn
authors: Sea Around Us Project, Fisheries Centre, University of British Columbia, 2202 Main Mall, Vancouver BC V6T-1Z4, Canada. Electronic address: d.pauly@fisheries.ubc.ca.
authors: Daniel
authors: D
authors: Pauly
mesh_terms: D000392:Air Movements; D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data*; D001272:Atmosphere / Q000737:chemistry; D004147:Dioxins / Q000032:analysis*; D004784:Environmental Monitoring; D008956:Models, Chemical; D012989:Soil Pollutants / Q000032:analysis
chemical_list: D000393:Air Pollutants; D004147:Dioxins; D012989:Soil Pollutants
keywords: Dioxins (PCDD/Fs); Global impact; Kuznets curve; Mass balance model; Toxic equivalents (TEQs)