Atmospheric methyl halides and dimethyl sulfide from cattle
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چکیده
منابع مشابه
Metabolism of methyl bromide and dimethyl sulfide by marine bacteria isolated from coastal and open waters'
Marine methylotrophic bacteria that consumed methyl bromide (MeBr) and/or dunethyl sulfide (DMS) were isolated: 4 strains from Long Island Sound, USA (LIS) and 1 from the tropical North Atlantic (TNA). Substrates used for enrichment were DMS, trimethylarnine (TMA) or TMA plus MeBr. Attempts to obtain isolates on MeBr as the sole source of carbon and energy were unsuccessful. Three of the isolat...
متن کاملReaction mechanisms and kinetics for the oxidations of dimethyl sulfide, dimethyl disulfide, and methyl mercaptan by the nitrate radical.
This study examines the initial oxidation routes of the three major reduced sulfur compounds (CH(3)SH, CH(3)SCH(3), and CH(3)SSCH(3)) by the nitrate radical using density functional and ab initio methods. Stationary points along each reaction pathway are examined using different levels of theory and basis sets to ensure the convergence of the results. Kinetics calculations follow on the determi...
متن کاملAn advanced modeling study on the impacts and atmospheric implications of multiphase dimethyl sulfide chemistry.
Oceans dominate emissions of dimethyl sulfide (DMS), the major natural sulfur source. DMS is important for the formation of non-sea salt sulfate (nss-SO42-) aerosols and secondary particulate matter over oceans and thus, significantly influence global climate. The mechanism of DMS oxidation has accordingly been investigated in several different model studies in the past. However, these studies ...
متن کاملSolvent effects on the intramolecular conversion of trimethylsulfonium chloride to dimethyl sulfide and methyl chloride.
The formation of CH3Cl from (CH3)3SCl in various solvents has been studied based on M05/6-311+G(2d,p) DFT calculations to quantify the influence of the solvent on the stability of sulfonium cations. Four different pathways (one SN1, one backside and two frontside attacks for SN2) as well as the formation of different ion pairs (tripod, seesaw, and linear) are discussed to investigate the origin...
متن کاملDimethyl disulfide (DMDS) and dimethyl sulfide (DMS) emissions from biomass burning in Australia
[1] We identify dimethyl disulfide (DMDS) as the major reduced sulfur-containing gas emitted from bushfires in Australia’s Northern Territory. Like dimethyl sulfide (DMS), DMDS is oxidized in the atmosphere to sulfur dioxide (SO2) and methane sulfonic acid (MSA), which are intermediates in the formation of sulfuric acid (H2SO4). The mixing ratios of DMDS and DMS were the highest we have ever de...
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ژورنال
عنوان ژورنال: Global Biogeochemical Cycles
سال: 1999
ISSN: 0886-6236
DOI: 10.1029/1998gb900010