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Arsenic uptake by the Douglas-fir (Pseudotsuga menziesie)

TitleArsenic uptake by the Douglas-fir (Pseudotsuga menziesie)
Publication TypeJournal Article
Year of Publication2004
AuthorsHaug, CM, Reimer, KJ, Cullen, WR
JournalApplied Organometallic Chemistry
Volume18
Pagination626-630
Date PublishedDec
Type of ArticleProceedings Paper
ISBN Number0268-2605
Keywordsaccumulation, arsenic, CANADA, CONTAMINATED SOILS, Douglas fir, ENVIRONMENT, fern, gold mine, HPLC-ICP-MS, HYPERACCUMULATOR, PHYTOCHELATINS, PLANTS, SPECIATION
Abstract

The Douglas fir (Pseudotsuga menziesie) growing in an arsenic-rich gold-bearing region contains elevated arsenic concentrations in new-growth stems (374ppm dry weight (dw)) and needles (257ppm dw). Speciation of methanol-water extracts by using high-performance liquid chromatography- inductively coupled plasma mass spectrometry show that arsenite is the major species in needles but arsenate is more dominant in stems. Only traces of methylarsenicals are present. Arsenic concentrations in other tree species growing in the region are generally much lower; dimethylarsinate was extracted from a spruce cone. Copyright (C) 2004 John Wiley Sons, Ltd.

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