珠江广州河段水体、沉积物及底栖生物体内多氯联苯有机污染物的初步研究

Preliminary Study on Polychlorinated Biphenyls Organic Contaminant in Water,Sediments and Benthic Organisms from Guangzhou Reach of Pearl River Nie Xiangping Lan Chongyu Luan Tiangang

珠江广州河段多氯联苯有机污染物的初步调查研究结果表明,广州河段7个样点水体中多氯联苯类有机污染物平均含量为2.3 ng/L,各点含量无显著差异;沉积物中多氯联苯类有机污染物平均含量为31.52μg/kg,各点有显著差异,其中以广州河段南航道y03样点最高;底栖生物体内多氯联苯含量平均含量为181.77μg/kg。多氯联苯在水体、沉积物及生物体三者之间存在明显的富集和放大作用。

This work presents preliminary study results on the concentrations of Polychlorinated Biphenyls (PCBs) in water, sediments and benthic organisms collected from seven sites in Guangzhou reach of Pearl River. The results indicated that the average PCBs concentration were 2.3 ng/L in water, 31.52 μg/L in sediment, 181.77 μg/L in benthic organisms. Remarkable difference existed in the PCBs concentrations from the sediments, among which the highest PCBs concentration appeared in the y03 site. Significant concentrating and amplifying phenomenon existed in water, sediments and creature.