【摘要】 探讨了不同水文季节 (丰水期和枯水期 )乌江河水中汞的赋存形态及其在流域内的时空分布 ,结果表明 :乌江流域表层水体总汞的平均浓度分别为 :丰水期 65 9ng·l- 1 ,枯水期 1 6 6ng·l- 1 .乌江河水汞的主要形态为颗粒态 ,颗粒态汞占总汞的比例为丰水期84% ,枯水期 5 2 % .更多还原

【Abstract】 The speciation and distribution of mercury were studied in the Wujiang river during the high flow and low flow periods.The concentrations of average total mercury were 65.9ng·l -1 in high flow period and 16.6ng·l -1 in low flow period,respectively.The mercury in Wujiang river was mostly associated with suspended particles,and the particulate mercury constituted on an average of 84% of the total mercury in high flow period,of 52% of the total mercury in low flow period,respectively.更多还原