NDLI: Arsenic transformations in terrestrial small mammal food chains from contaminated sites in Canada.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Saunders, Jared R. Hough, Christopher Knopper, Loren D. Koch, Iris Reimer, Kenneth J.
Spatial Coverage	Canada
Description	Country affiliation: Canada Author Affiliation: Saunders JR ( Stantec, Ottawa, Ontario K1B 1A7, Canada.)
Abstract	Arsenic in terrestrial contaminated sites has the potential to cause harm to residential wildlife. The aim of this study was to determine the arsenic species in wild rodents living in arsenic contaminated habitats, specifically deer mice from Yellowknife, NT and meadow voles from Seal Harbour, NS, along with co-located plants. Methanol : water (1 : 1) extractions were used to optimize the extraction of methylated arsenic(v) species. Total arsenic concentrations were substantially higher in the Yellowknife deer mice (1.7-3.2 µg kg(-1) wet weight in livers) and Seal Harbour meadow voles (0.67-0.97 µg kg(-1) wet weight in livers) living on the contaminated sites with respect to the surrounding background locations (0.12-0.34 µg kg(-1) wet weight in livers). Around 50% of arsenic could be identified in Yellowknife deer mouse tissues, but only <10% was identified in Seal Harbour vole tissues; inorganic arsenic (iii and v) and dimethylarsinic acid were all found. Monomethylarsonic acid was only detected in both the mice and voles living in the contaminated sites. In the Yellowknife food chain, methyl arsenic (v) proportions increased from plants to mouse inner organs, but the trend was not for clear as the Seal Harbour food chain. Seal Harbour voles may be sequestering arsenic in a less mobile form, rather than transforming it.
File Format	HTM / HTML
ISSN	14640325
Issue Number	6
Volume Number	13
e-ISSN	14640333
Journal	Journal of Environmental Monitoring
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2011-06-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Environmental Health Arsenic Metabolism Environmental Pollutants Food Chain Muridae Animals Analysis Arvicolinae Canada Environmental Monitoring Liver Mice Plants Chemistry Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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