@article {658,
	title = {Reductive dechlorination of weathered Aroclor 1260 during anaerobic biotreatment of Arctic soils},
	journal = {Canadian Journal of Microbiology},
	volume = {49},
	number = {1},
	year = {2003},
	note = {ISI Document Delivery No.: 654TDTimes Cited: 3Cited Reference Count: 23},
	month = {Jan},
	pages = {9-14},
	type = {Article},
	abstract = {We investigated the microbial reductive dechlorination of both weathered (aged) and nonweathered (freshly added) Aroclor 1260 in aerobic soil from Resolution Island, Nunavut, Canada. Initial polychlorinated biphenyl (PCB) concentrations were 106 and 100 ppm, respectively. The aerobic soil samples were inoculated with anaerobic sediment, incubated at 30degreesC until methanogenic, inoculated with a dechlorinating enrichment culture, and incubated a further 8 weeks. The average number of chlorine substituents per biphenyl molecule was biologically reduced from 6.6 to 5.1 and from 6.2 to 4.5 for weathered and nonweathered Aroclor 1260, respectively. Removal of hexa- and heptachlorobiphenyls (CBs), the major homolog groups present, was significantly greater for nonweathered than for weathered Aroclor 1260. Formation of dechlorination products, primarily 2,2{\textquoteright},4,4{\textquoteright}- and 2,2{\textquoteright},4,6{\textquoteright}-tetraCBs, was also significantly greater for nonweathered than for weathered Aroclor 1260. We additionally compared the dechlorination at 21degreesC of weathered Aroclor 1260 in soils from Resolution Island and Saglek, Labrador, Canada. The average number of chlorine substituents per biphenyl molecule was biologically reduced from 6.7 to 5.1 and from 6.5 to 4.6, respectively. This study demonstrated the potential for bioremediation of aerobic soil contaminated with Aroclor 1260 and showed that weathering may limit such treatment to an extent variable among different soils.},
	keywords = {BIODEGRADATION, bioremediation, META, MICROBIAL DECHLORINATION, MICROORGANISMS, PCB, PCBS, polychlorinated biphenyl, POLYCHLORINATED-BIPHENYLS, SEDIMENTS},
	isbn = {0008-4166},
	url = {<Go to ISI>://000181511400002},
	author = {Kuipers, B. and Cullen, W. R. and Mohn, W. W.}
}
@article {506,
	title = {Metabolism of pyrene by two clam species, Mya arenaria and Protothaca staminea},
	journal = {Chemosphere},
	volume = {49},
	number = {3},
	year = {2002},
	note = {ISI Document Delivery No.: 595QETimes Cited: 11Cited Reference Count: 29},
	month = {Oct},
	pages = {315-322},
	type = {Article},
	abstract = {Two species of marine clam, Mya arenaria and Protothaca staminea, were exposed to pyrene and 1-hydroxypyrene in small glass aquaria. After 10 days of exposure the clams were sacrificed, and both clam tissue and seawater were assayed for pyrene metabolites by using HPLC, fluorescence spectroscopy, HPLC-ESI-MS, GC-MS and H-1-NMR spectrometry. 1-Pyrenol-1-hydrogensulfate (pyrene-1-sulfate) was identified as the major water soluble metabolite formed from both pyrene and 1-hydroxypyrene by both species of clam. 1-Hydroxypyrene was identified as a minor metabolite of pyrene, and pyrenediol-hydrogen sulfate was identified as a minor metabolite of 1-hydroxypyrene. (C) 2002 Elsevier Science Ltd. All rights reserved.},
	keywords = {BENZO<A>PYRENE, BIOMARKERS, biotransformation, contaminant, EXPOSURE, mollusk, PAHs, polycyclic aromatic hydrocarbons, POLYCYCLIC AROMATIC-HYDROCARBONS, SEDIMENTS, SOUND},
	isbn = {0045-6535},
	url = {<Go to ISI>://000178119600012},
	author = {Simpson, C. D. and Cullen, W. R. and He, T. Y. T. and Ikonomou, M. and Reimer, K. J.}
}
@article {4854,
	title = {Arsenic species in terrestrial fungi and lichens from Yellowknife, NWT, Canada},
	journal = {Applied Organometallic Chemistry},
	volume = {14},
	number = {5},
	year = {2000},
	note = {ISI Document Delivery No.: 318XXTimes Cited: 30Cited Reference Count: 31},
	month = {May},
	pages = {245-252},
	type = {Article},
	abstract = {Levels of total arsenic and arsenic species were determined in fungi collected from Yellowknife, NWT, Canada, an area that has been affected by past mining activities and elevated arsenic levels, Lichens (belonging to Cladonia and Cladina genera), as well as the mushrooms Coprinus comatus, Paxillus involutus, Psathyrella candolleana and Leccinum scabrum, were studied for the first time, Most of the fungi contained elevated arsenic levels with respect to data found in the literature for background levels. Minor amounts of arsenobetaine were found in all lichen samples. The major water-soluble arsenic species in the fungi mere inorganic arsenic for lichens and Psathyrella candolleana, arsenobetaine for Lycoperdon pyriforme and Coprinus comatus, and dimethylarsenate for Paxillus involutus and Leccinum scabrum. A large proportion of water-soluble arsenic in Paxillus involutus occurred as an unknown compound, which did not co-chromatograph with any of the available standard arsenic compounds. Low proportions of water-soluble arsenic species (made evident by low extraction efficiencies) were observed in the majority of fungi studied. Arsenic that is not extracted may be bound to lipids, cell components or proteins, or might exist on the surface of the fungus as minerals. Copyright (C) 2000 John Wiley \& Sons, Ltd.},
	keywords = {AMANITA-MUSCARIA, arsenic, arsenobetaine, ARSENOCHOLINE, lichens, mining, MUSHROOM, mushrooms, ORGANISMS, SEDIMENTS, SPECIATION},
	isbn = {0268-2605},
	url = {<Go to ISI>://000087310900003},
	author = {Koch, I. and Wang, L. X. and Reimer, K. J. and Cullen, W. R.}
}
@article {4287,
	title = {Metal(loid)organic compounds in geothermal gases and waters},
	journal = {Organic Geochemistry},
	volume = {29},
	number = {5-7},
	year = {1998},
	note = {ISI Document Delivery No.: 156HQTimes Cited: 48Cited Reference Count: 5918th International Meeting on Organic GeochemistrySEP 22-26, 1997MAASTRICHT, NETHERLANDSEuropean Assoc Organ Geochemists},
	pages = {1765-1778},
	type = {Proceedings Paper},
	abstract = {Volatile metal(loid)organic species of geogenic and anthropogenic origin are analyzed by low temperature gas chromatography coupled on-line with plasma mass spectrometry (LTGC/ICP MS) with detection limits in the higher pg-range (per m(3) gas). In respect to the determination of aqueous samples, this instrumental technique is combined with sample derivatization by the hydride generation technique. Volatile species of As, Sb, Sr and I could be detected in gases over hot springs in British Columbia (Canada). Methylated species of Hg, Ge, As, Sb and Te were also determined in concentrations in the ng/kg- to low mu g/kg-range in geothermal waters from Ruapehu, Waimangu, Waiotapu and Tokaanu (North Island, New Zealand); up to 1\% of the total dissolved metal(loid)s are found in methylated forms. Volatile metal(loid)organic species of geogenic origin are compared with those emanating from anthropogenic sources (waste and sewage gases, river and harbor sediments). Possible formation mechanisms for these compounds are discussed. (C) 1998 Elsevier Science Ltd. Ail rights reserved.},
	keywords = {ANTIMONY, ATOMIC-ABSORPTION SPECTROMETRY, British Columbia, ENVIRONMENT, geothermal, hot springs, mercury, metal(loid)organic compounds, methylmercury, NATURAL-WATERS, New Zealand, NEW-ZEALAND, SEDIMENTS, sewage gases, VOLATILE METAL, volatile species, WASTE DEPOSITS, WASTE GASES, WATERS},
	isbn = {0146-6380},
	url = {<Go to ISI>://000077995900056},
	author = {Hirner, A. V. and Feldmann, J. and Krupp, E. and Grumping, R. and Goguel, R. and Cullen, W. R.}
}
