深圳市布吉河枯水期的水质特征

针对深圳河的重要支流——布吉河水体不断发黑发臭的状况,对布吉河粤宝公司断面的河水枯水期水质进行连续监测。依据GB3838—2002《地表水环境质量标准》Ⅴ类水质标准评价并进行内梅罗综合污染指数计算。结果表明:布吉河水质属严重的劣Ⅴ类,氮是最重要的污染物,布吉河水已经为低浓度城市污水,且水污染有逐年加重的趋势。全天24h、间隔为1h的水样监测结果表明:COD和BOD的日浓度变化趋势具有一定的相似性;NH3-N和TN的日浓度变化规律具有很好的相似性,变化趋势比较一致;TP的浓度变化特征与NH3-N和TN的变化规律有较强的同步性,但是浓度变化趋势推迟1h左右。该水质监测评价分析为布吉河的水污染治理提供依据。

Water quality characteristics of Shenzhen Buji River in dry season

As the water is continuously black and odorous in the Buji River,one of the most important branches of the Shenzhen River,the water quality in the Yuebao Company section was monitored continuously in the dry season.According to the level V standard of Environmental Quality Standards for Surface Water(GB3838-2002),the Nemerow integrated index was calculated.The results showed that the water quality of the Buji River was worse than the level V standard,and nitrogen was the most significant pollutant.The water...