Global deposition of airborne dioxin

Shawn Booth, Joe Hui, Zoraida Alojado, Vicky W Y Lam, William W L Cheung, Dirk Zeller, Douw Steyn, Daniel Pauly

Research output: Contribution to journalArticle

20 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)182-186
Number of pages5
JournalMarine Pollution Bulletin
Volume75
Issue number1-2
DOIs
Publication statusPublished - 15 Oct 2013
Externally publishedYes

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