evaluation of methyl tert-butyl ether (MTBE) in groundwater at leaking underground storage tank sites

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Idaho Division of Environmental Quality, Watershed & Aquifer Protection Bureau , [Boise, Idaho]
Butyl methyl ether -- Environmental aspects -- Idaho., Groundwater -- Pollution -- Idaho., Underground storage tanks -- I

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Other titlesGround water quality report
StatementIdaho Division of Environmental Quality, Watershed & Aquifer Protection Bureau.
Classifications
LC ClassificationsTD427.P4 .I33 1999
The Physical Object
Pagination9, [2] leaves :
ID Numbers
Open LibraryOL3764338M
LC Control Number2003479082
OCLC/WorldCa52413915

Anecdotal reports suggest that high environmental or occupational exposures to the fuel oxygenate methyl tert-butyl ether (MTBE) may result in breath concentrations that are sufficiently elevated to cause a false positive on commercial breath-alcohol analyzers.

Details evaluation of methyl tert-butyl ether (MTBE) in groundwater at leaking underground storage tank sites PDF

We evaluated this possibility in vitro by establishing a response curve for simulated breath containing MTBE in by: 9. Eleven soil samples (contaminated and non-contaminated top soils and aquifers) from seven different locations in Belgium were examined in lab-scale batch microcosms simulating in situ conditions for their indigenous capacity to biodegrade methyl tert-butyl ether (MTBE).The effect of implementing nutrients or additional oxygen and of the presence of co-contaminants on MTBE degradation was Cited by: Single-walled carbon nanotubes as an effective adsorbent in solid-phase microextraction of low level methyl tert-butyl ether, ethyl tert-butyl ether and methyl tert-amyl ether from human urine.

Journal of Chromatography B, DOI: /bCited by: Carbon isotopic enrichment factors (εC) measured during cometabolic biodegradation of methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), and tert-amyl methyl ether (TAME) by Pseudonocardia tetrahydrofuranoxydans strain K1 were − ± ‰, − ± ‰, and − ± ‰, respectively.

The measured carbon apparent kinetic isotope effect was for all compounds Cited by: Evaluation of toxicity of methyl tert-butyl ether (MTBE) on mouse spermatogenic cells in vitro Article in Toxicology and Industrial Health 22(7) August with 27 Reads.

The New Mexico Environment Department (NMED} has received the Evaluation of Methyl Tert­ Butyl Ether (MTBE) in Groundwater, dated September and received Septem NMED has accepted the submittal for review in accordance with the New Mexico Hazardous Waste Permit and Corrective Action Fee Regulations, (2) NMAC.

Anecdotal reports suggest that high environmental or occupational exposures to the fuel oxygenate methyl tert-butyl ether (MTBE) may result in breath concentrations that are sufficiently elevated to cause a false positive on commercial breath-alcohol analyzers.

We evaluated this possibility in vitro by establishing a response curve for simulated breath containing MTBE in ethanol. Methyl tert-butyl ether Hazard Summary Methyl tert-butyl ether is used as a gasoline additive.

Exposure may occur by breathing air contaminated with auto exhaust or gasoline fumes while refueling autos. Respiratory irritation, dizziness, and disorientation have been reported by some motorists and occupationally exposed g: evaluation.

Methyl tert-butyl ether (MTBE) is a flammable liquid with a distinctive, disagreeable odor. It is made from blending chemicals such as isobutylene and methanol, and has been used since the s as an additive for unleaded gasolines to achieve more efficient burning.

Other names: Ether, tert-butyl methyl; tert-Butyl methyl ether; Methyl tert-butyl ether; 2-Methoxymethylpropane; 2-Methylmethoxypropane; tert-C4H9OCH3; Methyl t-butyl ether; MTBE; Methyl 1,1-dimethylethyl ether; UN ; Driveron; 1,1-Dimethylethyl methyl ether; t-Butyl methyl ether; Missing: evaluation.

Abstract. Methyl tert-butyl ether (MTBE) is the oxygenated gasoline additive most widely used in the U.S. to reduce the CO emission from motor developed a method using a high-temperature purge-and-trap procedure coupled with capillary gas chromatography-mass selective detection to determine MTBE and its metabolite, tert-butyl alcohol (TBA), in human by: A Gram-negative, rod-shaped, motile, non-pigmented, facultative aerobe that grew optimally at pH and 30 °C (strain PM1 T) was isolated for its ability to completely degrade the gasoline additive methyl tert-butyl is of the 16S rRNA gene sequence indicated that this bacterium was a member of the class Betaproteobacteria in the Sphaerotilus–Leptothrix by: Methyl tert -butyl ether was tested for carcinogenicity in a non-standard protocol in rats by gavage.

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The incidences of Leydig-cell tumours of the testis in males and of lymphomas and leukaemias combined in females were increased. Methyl tert -butyl ether was tested by inhalation in one experiment in mice and in one experiment in rats.

Methyl tert-butyl ether (MTBE), also known as tert-butyl methyl ether, is an organic compound with a structural formula (CH 3) 3 COCH is a volatile, flammable, and colorless liquid that is sparingly soluble in water. It has a minty smell, vaguely reminiscent of diethyl ether, leading to unpleasant taste and odor in is a blending component of gasoline, used as an oxygenate to Chemical formula: C₅H₁₂O.

Methyl tertiary-butyl ether (MTBE) is an oxygenate that is added to gasoline to boost octane and enhance combustion, thereby reducing carbon monoxide and hydrocarbon tailpipe emissions.

The acute and subchronic neurotoxicity of MTBE were evaluated in rats using a functional observation battery (FOB), measures of motor activity (MA) and a Cited by: Integrated Risk Information System (IRIS) U.S.

Environmental Protection Agency Chemical Assessment Summary National Center for Environmental Assessment. 14 sexes of rats exposed to ppm. These data suggested that ppm was a minimal effect level based on the relative liver weight changes in the female Size: KB.

IARC monographs on the evaluation of carcinogenic risks to humans Methyl tert-butyl ether. PMID Abstract tert-Butyl methyl ether, reagent grade, ≥98% C 5 H 12 O pricing tert-Butyl methyl ether. tert-Butyl methyl ether Revision Date Jan T - Indicates a substance that is the subject of a Section 4 test rule under TSCA.

XU - Indicates a substance exempt from reporting under the Inventory Update Rule, i.e. Partial Updating of the TSCA Inventory Missing: evaluation. This test method covers the determination of the purity of methyl tert-butyl ether (MTBE) by gas chromatography. It also provides a procedure to measure impurities in MTBE such as C 4 to C 12 olefins, methyl, isopropyl and tert-butyl alcohols, methyl sec-butyl and methyl tert-amyl ethers, acetone, and methyl ethyl ketone.

Description evaluation of methyl tert-butyl ether (MTBE) in groundwater at leaking underground storage tank sites EPUB

Impurities are. Evaluation of Standard Methods for the Analysis of Methyl tert-Butyl Ether and Related Oxygenates in Gasoline-Contaminated Groundwater This paper, published in Environmental Science & Technology, presents testing results for three purge-and-trap gas chromatography methods commonly employed for the monitoring of oxygenate compounds in.

This study determines the appropriate statistical methods to evaluate multiply censored water quality data. An S-Plus module program is used. The case study investigated is the occurrence of methyl tert-butyl ether (MTBE) and tert-butyl alcohol (TBA) in groundwater impacted by.

Developmental toxicity evaluation of methyl tertiary-butyl ether (MTBE) by inhalation in mice and rabbits. Bevan C(1), Tyl RW, Neeper-Bradley TL, Fisher LC, Panson RD, Douglas JF, Andrews LS. Author information: (1)Exxon Biomedical Sciences, Inc., East Millstone, NJby: All but two of the compounds (meta-dichlorobenzene and methyl tert-butyl ether) were evaluated in previous IARC Monographs.

Re-evaluations were made in the light of both new studies of the compounds and a growing body of evidence concerning certain pathological processes that lead to tumour development in the kidney and urinary bladder of rats.

Application of GC-MS and GC-AED to the evaluation of by-products formed by solar photo-fenton degradation of Methyl tert-butyl ether in water.

International Journal of Environmental Analytical Chemistry: Vol. 84, Proceedings of the 2nd European Conference on “Pesticides and related organic micropollutants in the environment”, Corfu, Greece, 26–29 Septemberpp. Cited by: oxygenates, such as diisopropyl ether (DIPE), ethyl tert-butyl ether (ETBE), tert-amyl methyl ether (TAME), TBA, ethanol, and methanol, although information about treatment and occurrence of these other oxygenates is limited.

The sources of these project data. * Methyl-tert-Butyl Ether can affect you when breathed in and may be absorbed through the skin. * Contact can irritate the skin and eyes. * Breathing Methyl-tert-Butyl Ether can irritate the nose and throat.

* Exposure to Methyl-tert-Butyl Ether can cause difficulty concentrating, headache, nausea, dizziness, weakness and Size: KB.

Methyl tert-butyl ether (MTBE) is a volatile organic compound (VOC) often added to gasoline to reduce air pollution. MTBE and other components, commonly known as “oxygenates,” are added to gasoline to increase the octane number and reduce carbon monoxide emissions.

Information regarding the chemicalFile Size: KB. nomination of Methyl-tert-Butyl Ether for listing in the 9th RoC. The RG1 reviewed the available carcinogenicity data for the nomination of methyl tertiary-butyl ether (MtBE).

After applying the current criteria for listing substances in the RoC, the RG1 passed a motion, by a vote of 4 in favor to 3 opposed, to recommended that MtBE should beFile Size: KB. US Patents:7, - Cyclopropanated macrocyclic ketones and lactones PubMed:Methyl tert butyl ether is anti-angiogenic in both in vitro and in vivo mammalian model systems.

PubMed:[Determination of migration of 25 primary aromatic amines from food contact plastic materials by gas chromatography-mass spectrometry].

PubMed:High throughput identification and quantification of 16 antipsychotics. Industrial Process Economics Reports About Methyl tert-Butyl Ether (MTBE) Methyl tert-Butyl Ether (MTBE) is a major compound in the octane enhancer industry, its main application area.

An ether having methyl and tert-butyl as the two alkyl components. ChEBI CHEBI An ether having methyl and tert-butyl as the two alkyl g: evaluation.S N 1 Ether cleavage. The unimolecular S N 1 mechanism proceeds via a carbocation (provided that the carbocation can be adequately stabilized).

In the example, the oxygen atom in methyl tert-butyl ether is reversibly protonated. The resulting oxonium ion then decomposes into methanol and a relatively stable tert-butyl latter is then attacked by a nucleophile halide (here bromide Missing: evaluation.

Methyl tert-butyl ether (also known as MTBE, tert-butyl methyl ether, tertiary butyl methyl ether and tBME) is an organic compound with structural formula (CH3)3COCH3. MTBE Missing: evaluation.