海河流域和渤海湾沉积物和水样中五氯酚的分布

DISTRIBUTION OF PENTACHLOROPHENOL IN SEDIMENTS AND WATER FROM HAIHE BASIN AND BOHAI BAY

建立了水和沉积物中五氯酚(PCP)的LC-ESI-MS分析方法,并调查了海河流域以及渤海湾水体和沉积物中PCP的污染状况.海河流域中水和沉积物中PCP的浓度分别为1800ng.l-1和13700ng.g-1,最高浓度发生在万年桥.渤海湾水中PCP的平均浓度为56.8ng.l-1,高于海河流域(除万年桥)PCP的浓度水平(10.0ng.l-1),但是沉积物中PCP的平均浓度为6.58ng.g-1,远低于海河流域沉积物中PCP的浓度水平(1500ng.g-1).

This paper established the LC-ESI-MS method to analyze pentachlorophenol（PCP） in water and sediment samples, and then investigated the occurance of PCP in Haihe basin and Bohai bay. Of 10 sampling sites from Haihe basin, the concentration from Wannianqiao was found to be the highest： the concentrations of PCP in the water and the sediment were 1800ng ·l^-1 and 13700ng ·g^-1, respectively suggesting that it would be the main source of PCP polution in Bohai bay. On the other hand, the mean concentration of PCP in the water from Bohai bay was 56. 8ng·l^-1 which was higher than that in samples except for Wannianqiao from Haihe basin（10.0ng·l^-1）. The mean concentration in sedimentary samples was 6.58ng·g^-1, which is much lower than that of samples from Bohai basin（1500ng·g^-1）.