NDLI: Identification of ester metabolites from petroleum hydrocarbon biodegradation in groundwater using GC×GC-TOFMS.

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Identification of ester metabolites from petroleum hydrocarbon biodegradation in groundwater using GC×GC-TOFMS.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	O'Reilly, Kirk T. Mohler, Rachel E. Zemo, Dawn A. Ahn, Sungwoo Tiwary, Asheesh K. Magaw, Renae I. Devine, Catalina Espino Synowiec, Karen A.
Description	Country affiliation: United States Author Affiliation: O'Reilly KT ( Exponent, Bellevue, Washington, USA.); Mohler RE ( Chevron Energy Technology, Richmond, California, USA.); Zemo DA ( Zemo and Associates, Incline Village, Nevada, USA.); Ahn S ( Exponent, Bellevue, Washington, USA.); Tiwary AK ( Chevron Energy Technology, San Ramon, California, USA.); Magaw RI ( Chevron Energy Technology, San Ramon, California, USA.); Devine CE ( Chevron Energy Technology, San Ramon, California, USA.); Synowiec KA ( Chevron Energy Technology, San Ramon, California, USA.)
Abstract	In an effort to understand the nature and toxicity of petroleum hydrocarbon degradation metabolites, 2-dimensional gas chromatography linked to a time-of-flight mass spectrometer (GC×GC-TOFMS) was used to conduct nontargeted analysis of the extracts of 61 groundwater samples collected from 10 fuel release sites. An unexpected result was the tentative identification of 197 unique esters. Although esters are known to be part of specific hydrocarbon degradative pathways, they are not commonly considered or evaluated in field studies of petroleum biodegradation. In addition to describing the compounds identified, the present study discusses the role for nontargeted analysis in environmental studies. Overall, the low toxicological profile of the identified esters, along with the limited potential for exposure, renders them unlikely to pose any significant health risk.
File Format	HTM / HTML
ISSN	07307268
Issue Number	9
Volume Number	34
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2015-09-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Water Pollutants, Chemical Biodegradation, Environmental Research Support, Non-u.s. Gov't Discipline Environmental Health Gas Chromatography-mass Spectrometry Hydrocarbons Discipline Toxicology Esters Metabolism Petroleum Journal Article Chemistry Groundwater Analysis Discipline Chemistry Methods
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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