Science. 1983 Aug 19;221(4612):744-7. doi: 10.1126/science.221.4612.744.
Dimethyl sulfide (DMS) has been identified as the major volatile sulfur compound in 628 samples of surface seawater representing most of the major oceanic ecozones. In at least three respects, its vertical distribution, its local patchiness, and its distribution in oceanic ecozones, the concentration of DMS in the sea exhibits a pattern similar to that of primary production. The global weightedaverage concentration of DMS in surface seawater is 102 nanograms of sulfur (DMS) per liter, corresponding to a global sea-to-air flux of 39 x 10(12) grams of sulfur per year. When the biogenic sulfur contributions from the land surface are added, the biogenic sulfur gas flux is approximately equal to the anthropogenic flux of sulfur dioxide. The DMS concentration in air over the equatorial Pacific varies diurnally between 120 and 200 nanograms of sulfur (DMS) per cubic meter, in agreement with the predictions of photochemical models. The estimated source flux of DMS from the oceans to the marine atmosphere is in agreement with independently obtained estimates of the removal fluxes of DMS and its oxidation products from the atmosphere.
二甲基硫 (DMS) 已被确定为 628 个代表大多数主要海洋生态区的表层海水样本中的主要挥发性硫化合物。在至少三个方面，即垂直分布、局部斑块和在海洋生态区的分布，海水中 DMS 的浓度呈现出与初级生产力相似的模式。全球表层海水中 DMS 的加权平均浓度为每升 102 纳克硫（DMS），对应于每年 39 x 10(12)克硫向大气的通量。当加上陆地表面的生物成因硫贡献时，生物成因硫气体通量大致等于人为二氧化硫通量。赤道太平洋上空空气中的 DMS 浓度昼夜变化在每立方米 120 到 200 纳克硫（DMS）之间，与光化学模型的预测一致。从海洋到海洋大气的 DMS 源通量估计与从大气中去除 DMS 及其氧化产物的通量的独立获得的估计值一致。
