【摘 要】
：
In this stage,the concentrations of total mercury increase in water column and decrease in soil.With the prolongation of waterlogging time(> 10 d),the concentration of total mercury in water and in so
【机 构】
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College of Resources and Environment,Southwest University,Chongqing
【出 处】
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The 17th International Conference on Heavy Metals in the Env
论文部分内容阅读
In this stage,the concentrations of total mercury increase in water column and decrease in soil.With the prolongation of waterlogging time(> 10 d),the concentration of total mercury in water and in soil got a balance.The concentration of methylmercury in water increased with the prolongation of waterlogging time,peaked in 15th day,8th day and 15th day for experiment A,B,and C,respectively,then balanced in 30th day.The concentration of methylmercury in soil increased with the prolongation of waterlogging time,and also found a balance in 30th day.The order of the balance concentration of methylmercury in water and in soil were B > A > C.Moderately elevating temperature and higher dissolved oxygen in soil-water system can improve the emission of mercury from soil to water column.Lower dissolved oxygen is conducive to the methylation rate of mercury.
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