Acute and subchronic mammalian toxicity of naphthenic acids from oil sands tailings
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Results indicate that, under worst-case exposure conditions, acute toxicity is unlikely in wild mammals exposed to naphthenic acids in AOS tailings pond water, but repeated exposure may have adverse health effects.About:
This article is published in Toxicological Sciences.The article was published on 2002-04-01 and is currently open access. It has received 237 citations till now. The article focuses on the topics: Environmental exposure & Naphthenic acid.read more
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Journal ArticleDOI
A review of the occurrence, analyses, toxicity, and biodegradation of naphthenic acids.
TL;DR: A variety of analytical methods are reviewed and progress is being made to better understand this mixture of chemically similar compounds, which is a complex group of carboxylic acids.
Journal ArticleDOI
Process water treatment in Canada’s oil sands industry: I. Target pollutants and treatment objectives
TL;DR: In this paper, the authors discuss the impact of continuous recycling of tailings pond water (TPW) has contributed to a decline in water quality in Canada's oil sands industry.
Journal ArticleDOI
Naphthenic acids and other acid-extractables in water samples from Alberta: what is being measured?
TL;DR: It appears that the term "naphthenic acids", which has been used to describe the toxic extractable compounds in OSPW, should be replaced by a term such as "oil sands tailings water acid-extractable organics (OSTWAEO)".
Journal ArticleDOI
A review of the occurrence and fate of naphthenic acids in aquatic environments.
John V. Headley,Dena W. McMartin +1 more
TL;DR: Environmental persistence results, detailed information regarding the origin of naphthenic acids in tailings ponds, chemistry and toxicological considerations, current analytical methods for aquatic sampling, and areas of future remediation research are brought together.
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Estimating the in situ biodegradation of naphthenic acids in oil sands process waters by HPLC/HRMS
TL;DR: There is indirect evidence for rapid biodegradation of relatively labile Z=0 and Z=-2 NAs in active settling basins, but the remaining steady-state fraction of N as in OSPW appear to be very recalcitrant, with half-lives on the order of 12.8-13.6 years.
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Book
Manual of histologic staining methods of the Armed forces institute of pathology
TL;DR: This work states that stem cells: mechanisms of inflammation,” Annual Review of Pathology, vol.
Journal ArticleDOI
Characterization of naphthenic acids in oil sands wastewaters by gas chromatography-mass spectrometry.
TL;DR: This is the first investigation in which changes in the fingerprint of the NA fraction of process-affected waters from the oil sands operations has corresponded with measured toxicity in these waters.
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Biodegradation of naphthenic acids by microbial populations indigenous to oil sands tailings
TL;DR: Respirometric measurements of microbial activity within microcosms containing oil sands tailings were used to provide further evidence that the indigenous microbial community could biodegrade naphthenic acids and components within the extracted organic acids mixture.
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Description of Two Treatment Methods for Detoxifying Oil Sands Tailings Pond Water
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Isolation and characterization of naphthenic acids from Athabasca oil sands tailings pond water.
TL;DR: A laboratory bench procedure was developed to efficiently extract naphthenic acids from bulk volumes of Athabasca oil sands tailings pond water for use in mammalian oral toxicity testing, involving low solvent losses and a good extraction yield with low levels of impurities.
Related Papers (5)
A review of the occurrence, analyses, toxicity, and biodegradation of naphthenic acids.
Characterization of naphthenic acids in oil sands wastewaters by gas chromatography-mass spectrometry.
A review of the occurrence and fate of naphthenic acids in aquatic environments.
John V. Headley,Dena W. McMartin +1 more