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A review of halogenated natural products in Arctic, Subarctic and Nordic ecosystems
Umeå University, Faculty of Science and Technology, Department of Chemistry. (EcoChange; UMFpub)ORCID iD: 0000-0001-7469-0532
Umeå University, Faculty of Science and Technology, Umeå Marine Sciences Centre (UMF). Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
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2019 (English)In: Emerging Contaminants, ISSN 2405-6650, E-ISSN 2405-6642, Vol. 5, p. 89-115Article in journal (Refereed) Published
Abstract [en]

Halogenated natural products (HNPs) are organic compounds containing bromine, chlorine, iodine, and rarely fluorine. HNPs comprise many classes of compounds, ranging in complexity from halocarbons to higher molecular weight compounds, which often contain oxygen and/or nitrogen atoms in addition to halogens. Many HNPs are biosynthesized by marine bacteria, macroalgae, phytoplankton, tunicates, corals, worms, sponges and other invertebrates. This paper reviews HNPs in Arctic, Subarctic and Nordic ecosystems and is based on sections of Chapter 2.16 in the Arctic Monitoring and Assessment Program (AMAP) assessment Chemicals of Emerging Arctic Concern (AMAP, 2017) which deal with the higher molecular weight HNPs. Material is updated and expanded to include more Nordic examples. Much of the chapter is devoted to “bromophenolic” HNPs, viz bromophenols (BPs) and transformation products bromoanisoles (BAs), hydroxylated and methoxylated bromodiphenyl ethers (OH-BDEs, MeO-BDEs) and polybrominated dibenzo-p-dioxins (PBDDs), since these HNPs are most frequently reported. Others discussed are 2,2′ -dimethoxy-3,3′ ,5,5′ -tetrabromobiphenyl (2,2′ -dimethoxy-BB80), polyhalogenated 1′- methyl-1,2′-bipyrroles (PMBPs), polyhalogenated 1,1′ -dimethyl-2,2′ -bipyrroles (PDBPs), polyhalogenated N-methylpyrroles (PMPs), polyhalogenated N-methylindoles (PMIs), bromoheptyl- and bromooctyl pyrroles, (1R,2S,4R,5R,1′E)-2-bromo-1-bromomethyl-1,4-dichloro-5-(2′-chloroethenyl)-5- methylcyclohexane (mixed halogenated compound MHC-1), polybrominated hexahydroxanthene derivatives (PBHDs) and polyhalogenated carbazoles (PHCs). Aspects of HNPs covered are physicochemical properties, sources and production, transformation processes, concentrations and trends in the physical environment and biota (marine and freshwater). Toxic properties of some HNPs and a discussion of how climate change might affect HNPs production and distribution are also included. The review concludes with a summary of research needs to better understand the role of HNPs as “chemicals of emerging Arctic concern”.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 5, p. 89-115
Keywords [en]
Halogenated natural products (HNPs), Arctic, Scandinavia, Baltic Sea, Air, Water, Sediment, Biota, Physicochemical properties
National Category
Environmental Sciences
Research subject
environmental science
Identifiers
URN: urn:nbn:se:umu:diva-157149DOI: 10.1016/j.emcon.2019.02.007OAI: oai:DiVA.org:umu-157149DiVA, id: diva2:1295711
Funder
Ecosystem dynamics in the Baltic Sea in a changing climate perspective - ECOCHANGEAvailable from: 2019-03-12 Created: 2019-03-12 Last updated: 2019-03-15Bibliographically approved

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Andersson, AgnetaTysklind, Mats

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