【摘要】 采用大型底栖动物需氧有机体百分率ODP(oxygen demander percentage)法对广州珠江前航道、西航道和流溪河的下游段进行河流有机污染评价.结果显示:底栖动物需氧类群密度在三河段间分布确有显著性差异,并根据其ODP可以判断流溪河水质相对较好,水质级别为中国地表水环境质量标准(EQSSW)Ⅳ级,西航道和前航道水质级别都为Ⅴ级.通过测试,这一方法能成功地应用在珠江及流溪河,且该法可以较好地匹配于EQSSW五级评价系统,初步认为ODP系统可以成为一个较好的河流水质生物监测方法.图3表4参13更多还原

【Abstract】 The organic pollution of Front channel and West channel of the Pearl River in Guangzhou and the lower part of the Liuxi River were evaluated by method of macrofauna ODP (oxygen demander percentage) system. The results showed that the distributions of different oxygen demand groups indicated significant differences among three river sections. The Liuxi River had relatively good water quality, and it was belong to class IV in EQSSW (the Environmental Quality Standards for Surface Water of China) , and the Front channel and the West channels of the Pearl River were all belong to class V in EQSSW. Therefore, this method could be successfully used in the Pearl River and the Liuxi River, and it was in good combination with EQSSW, so it can be concluded that the ODP method is useful to biomonitor and evaluate river water quality. Fig 3, Tab 4, Ref 13更多还原