Abstract

The distribution of volatile organic compounds was studied in water and bottom sediments of estuaries of small tidal rivers. In the under-ice period, water showed high concentrations of organic matter: from 4.2 до 29.2 mg/L in fresh water, from 12.2 to 80.4 mg/L in slightly saline water, and 404 mg/L in seawater. The concentration of organic carbon in bottom sediments varied from <0.10 to 15.4%, and the amount of hydrocarbons varied from 0.01 to 1.43 mg/g. The concentrations of volatile organic compounds in under-ice river water was mostly below the standards established for water bodies used for fishery. Products of alcohol, acetone-butanol, and methane fermentation dominated in water and bottom sediments. The concentration of methanol in slightly saline lake water reached 13.76 mg/L. Levelling of the concentration of volatile organic compounds between bottom sediments and water because of the absence of surface flow, evaporation, and tidal transport is typical of the under-ice period.

中文翻译：

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冰下时期鞑靼海峡小河口区挥发性有机物

摘要

研究了小潮汐河流河口水体和底泥中挥发性有机物的分布。在冰下时期，水显示出高浓度的有机物：淡水中为 4.2 29.2 毫克/升，微咸水中为 12.2 至 80.4 毫克/升，海水中为 404 毫克/升。底部沉积物中有机碳的浓度从 <0.10% 到 15.4% 不等，碳氢化合物的量从 0.01 到 1.43 mg/g 不等。冰下河水中挥发性有机化合物的浓度大多低于渔业用水体的标准。酒精、丙酮-丁醇和甲烷发酵的产物主要存在于水和底部沉积物中。微盐湖水中甲醇浓度达到13.76mg/L。