THE TROPOSPHERIC OXIDATION OF DIMETHYL SULFIDE - A NEW SOURCE OF CARBONYL SULFIDE
THE TROPOSPHERIC OXIDATION OF DIMETHYL SULFIDE - A NEW SOURCE OF CARBONYL SULFIDE
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DOI：
10.1029/94gl02499
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发表时间：
1994-11-01
影响因子：
5.2
通讯作者：
PATROESCU, I
中科院分区：
文献类型：
--
作者：
BARNES, I;BECKER, KH;PATROESCU, I
在实验室研究的气相OH引发氧化二甲基硫醚（DMS：CH 3SCH 3）在室温下的形成SO 2，二甲基亚砜（DMSO：CH 3SOCH 3），和OCS已被观察到。测得OCS的产率为0.7 +/-0.2%S。这些新的结果代表了一个迄今为止未知的和相当可观的现场大气来源的OCS。基于全球DMS源强度在文献中给出的，并提供了实验室研究的结果是有效的大气条件下，我们估计在0.10至0.28 Tg（OCS）年-1范围内的贡献从气相大气DMS的光氧化全球OCS预算。
In laboratory investigations of the gas-phase OH initiated oxidation of dimethyl sulfide (DMS: CH3SCH3) at room temperature the formation of SO2, dimethyl sulfoxide (DMSO: CH3SOCH3), and OCS have been observed. A yield of 0.7 +/- 0.2 % S was measured for OCS. These new results represent a hitherto unknown and quite considerable in situ atmospheric source of OCS. Based on the global DMS source strength as given in the literature and provided that the results from the laboratory study are valid under atmospheric conditions we estimate a contribution in the range 0.10 to 0.28 Tg (OCS) yr-1 from the gas-phase atmospheric photooxidation of DMS to the global OCS budget.