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首页> 外文期刊>International journal of river basin management >Spatio-temporal pattern of water quality in the Saigon-Dong Nai river system due to waste water pollution sources
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Spatio-temporal pattern of water quality in the Saigon-Dong Nai river system due to waste water pollution sources

机译：废水污染源番木洞奈河系中的水质时空模式

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This paper studies the current status of water quality, using both statistical and modelling approaches, in the waterways of the Saigon-Dong Nai river basin in relation to the nature of its environment and the effect of point and diffuse pollution sources. These sources are located mainly in the urban and industrial areas of Ho Chi Minh City (HCMC) and Dong Nai province. The statistical analysis of monitoring data allows us to determine the state of water quality while the modelling approach provides the means to manage the pollution sources. Both approaches are used in this work. Our statistical analysis of the water quality data collected at many stations from the upper reach of the Saigon and Dong Nai rivers to the urban waterways and the lower end of the rivers near the sea shows a contrast of water quality in different basin areas. These differences are consistent in both dry and rainy seasons and during the high tide and low tide. The results show that several hot spots of some water quality variables require management focus, such as organic waste water pollution at Binh Dien and Thay Cai in HCMC mainly due to local sources. Moderately and highly degraded water quality occurs at Binh Phuoc, Phu An and Cat Lai which are downstream from the industrial areas of Binh Duong (Binh Duong province) and Bien Hoa (Dong Nai province) before entering HCMC. Modelling of some important water quality variables also confirms the spatial extent of the areas where water quality is different as analysed from the statistical analysis of monitoring data. The MIKE-11 modelling system is shown to be a valuable tool for predicting the effect of different sources in HCMC metropolitan area on the waterway areas where water quality is important to protect the ecosystem and people health.
机译：本文研究了统计和建模方法的水质现状，在西贡 - 董奈河流域的水路中，与其环境的性质以及点和弥漫性污染源的影响有关。这些来源主要位于胡志明市（HCMC）和东乃省的城市和工业区。监测数据的统计分析使我们能够确定建模方法的水质状态，而建模方法提供管理污染源的手段。这两种方法都用于这项工作。我们对来自西贡和董乃河上游的许多电台收集的水质数据的统计分析与城市水道和海域附近的河流的下端显示出不同盆地区域的水质形成对比。这些差异在干燥和雨季和高潮和低潮中都是一致的。结果表明，几种水质变量的几个热点需要管理重点，例如Binh Dien的有机废水污染，HCMC的Thay Cai主要是由于当地来源。在进入HCMC之前，在Binh Phuoc，Phu And Cat Lai中，Phu And Cat Lai发生了适度和高度降解的水质。一些重要的水质变量的建模还确认了水质不同，因为从监测数据的统计分析中分析了水质不同的区域。 Mike-11建模系统被证明是预测水道地区HCMC大都市地区不同来源的有价值的工具，水质对保护生态系统和人们健康是重要的。

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