In this study, the distribution, transfer and fate of both polychlorinated biphenyls (PCBs) and cyanotoxins via phytoplankton routes were systematically investigated in two Chinese lakes. Results indicated that PCB adsorption/bioaccumulation dynamics has significantly positive correlations with the biomass of green alga and diatoms. Total lipid content of phytoplankton is the major factor that influences PCB adsorption/bioaccumulation. Cyanobacterial blooms with relatively lower lipid content could also absorb high amount of PCBs due to their high cell density in the water columns, and this process was proposed as major route for the transfer of PCBs in Chinese eutrophic freshwater. According to these findings, a novel route on fates of PCBs via phytoplankton and a green bioadsorption concept were proposed and confirmed. In the practice of mechanical collections of bloom biomass from Lake Taihu, cyanotoxin/cyanobacteria and PCBs were found to be removed simultaneously very efficiently followed this theory.

译文

在这项研究中,系统地研究了两个中国湖泊中通过浮游植物路线的多氯联苯 (pcb) 和氰基毒素的分布,转移和命运。结果表明,PCB的吸附/生物蓄积动力学与绿藻和硅藻的生物量呈显着正相关。浮游植物的总脂质含量是影响PCB吸附/生物积累的主要因素。由于水柱中细胞密度高,脂质含量相对较低的蓝藻水华也可以吸收大量的多氯联苯,这一过程被认为是中国富营养化淡水中多氯联苯转移的主要途径。根据这些发现,提出并证实了通过浮游植物获得多氯联苯命运的新途径和绿色生物吸附概念。在机械收集太湖盛开生物质的实践中,发现根据该理论同时非常有效地去除了氰基毒素/蓝细菌和多氯联苯。

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