香港米浦基围塘中有机氯农药和多氯联苯在微型生物群落中的积累

ORGANOCHLORINES (OCs) AND POLYCHLORINATED BIPHENYLS (PCBs) IN MICROBIAL COMMUNITY OF HONG KONG MAI PO

分别在 2 0 0 1年和 2 0 0 2年用国家标准《水质 -微型生物群落监测 -PFU法》在香港米浦自然保护区的基围塘和红树林中监测水质 .在 3个基围塘中共鉴定出 91种原生动物 ,为香港地区的首次记录 .同时在群落级水平上分析了4种生态结构参数和 5种功能参数 .用化学的方法成功地监测出在此 3个基围塘的PFU挤出液中 pp′-DDE和PCB的浓度 ,并且获得两年一致性的结果 .本文化学和生物学结合的研究结果为测定水中超痕量持久性有机污染物 (POPs)的环境暴露与生态毒性提供了一种新的尝试 .图 3表 8参 2

Using the Chinese National Standard <Water Quality - Microbial Community Biomonitoring - PFU Method>the microbial communities in Gei Wai ponds and mangrove of Mai Po Marshes Nature Reserve, Hong Kong were collected in 2001 and 2002, respectively. Meanwhile, organochlorines (OCs) and polychlorinated Biphenyls (PCBs) in the microbial communities of the collected water samples were determined. 91 protozoan species were found in three Gei Wai ponds. It was the first protozoan record reported in Hong Kong. Four structural parameters and five functional parameters were analyzed for assessing the water quality at community level. The results showed a good agreement between the concentration of pp′-DDE and PCB in PFU extrusion in the three Gei Wai ponds in 2001 and 2002. Combining approach of chemical and biological investigations, it provides a new attempt for building a broad database on POPs exposure and their ecotoxicities in water. Fig 3, Tab 8, Ref 27