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首页> 外文期刊>Hydrology: Current Research >Water Quality Assessment and Apportionment of Pollution Sources of Selected Pollutants in the Min Jiang, a Headwater Tributary of The Yangtze River
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Water Quality Assessment and Apportionment of Pollution Sources of Selected Pollutants in the Min Jiang, a Headwater Tributary of The Yangtze River

机译：长江源头Jiang江水质评价及部分污染物的污染源分配

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This paper analyzed the spatial-temporal variations of surface water quality along the middle and lower reaches of the Min Jiang between 2003 and 2012 and investigated its pollution sources by analyzing the data from 4 water quality monitoring stations. The results showed that surface water quality was higher polluted in the middle reaches of the Min Jiang than that in the lower reaches and its tributary. Seasonal and spatial differences were found for DO, CODmn and NH3-N, whereas for TP the differences were mainly due to the water quality station. The level of organics (CODmn) was higher in summer (high flow period), and the level of NH3-N was higher in winter (low flow period). In the middle reaches of the Min Jiang, point sources (from wastewater treatment plants and industrial effluents) were found to be the dominant inputs of organics (CODmn) and nutrients (NH3-N and TP) to river. In the lower reaches of the Min Jiang, diffuse sources (from agricultural fertilizer, soil erosion, etc.) were the dominant contributor of organics and TP to river, while point sources were the dominant input of NH3-N. In tributary, diffuse sources were the dominant organics and TP input, both point and diffuse sources were dominant NH3-N inputs. Overall, these results reinforced the notion that pollution control by periods and regions was important for effective water quality management, and it is necessary to enhance the treatment of industrial effluent, to strictly carry out the discharge standard for water pollutants and the total amount control system, to incorporate NH3-N in the total amount control system in the Min Jiang.
机译：本文分析了2003年至2012年2003江中下游地表水水质的时空变化，并通过分析4个水质监测站的数据调查了其污染源。结果表明，Min江中游的地表水水质较下游及其支流高。 DO，CODmn和NH3-N的季节和空间差异，而TP的差异主要归因于水质站。夏季（高流量期）的有机物含量（CODmn）较高，冬季（低流量期）的NH3-N含量较高。在闽江中游，发现点源（废水处理厂和工业废水）是河流中有机物（CODmn）和养分（NH3-N和TP）的主要输入。在Min江下游，分散源（来自农业肥料，水土流失等）是河流中有机物和总磷的主要来源，而点源是NH3-N的主要输入。在支流中，扩散源是主要的有机物和总磷输入，点源和扩散源都是主要的NH3-N输入。总的来说，这些结果强化了分阶段和区域污染控制对于有效水质管理很重要的观念，必须加强工业废水的处理，严格执行水污染物排放标准和总量控制系统，将NH3-N纳入闽江总量控制系统。

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