| 赤水河流域下游水质监测及评价 |
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| 引用本文： | 王 中,陈 萍,许昌敏,郑 鹏.赤水河流域下游水质监测及评价[J].热带农业科学,2017,37(5):86-90. |
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| 作者姓名： | 王 中 陈 萍 许昌敏 郑 鹏 |
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| 作者单位： | 1. 习水县环境监测站 贵州遵义 564600;2. 华南农业大学科学技术处 广东广州 510642 |
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| 摘 要： | 通过对赤水河下游断面水体进行为期2年的水质特征调查,并结合综合污染指数法对该断面水体污染状况进行分析评价。结果表明,该断面水体CODMn含量在1.10~4.20 mg/L,平均值为(1.76±0.79)mg/L;BOD5含量在0.40~2.00 mg/L,平均值为(1.01±0.45)mg/L;NH_4~+-N含量在0.16~0.62 mg/L,平均值为(0.31±0.12)mg/L;TP含量在0.02~0.11 mg/L,平均值为(0.05±0.03)mg/L;DO含量在8.0~12.9 mg/L,平均值为(10.5±1.42)mg/L。综合污染指数分析结果显示,该断面水体综合污染指数处于清洁水平,但季节间有变化,赤水河下游水质在丰水期最好,其次是平水期,枯水期水质最差,但均达到了Ⅲ类水体标准。连续两年的研究结果表明,除了TP,其余各指标均呈下降趋势。
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| 关 键 词： | 赤水河 水质 监测 污染评价 |
Monitoring and Assessment of Water Quality in the Lower Reaches of Chishui River Basin |
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| WANG Zhong,CHEN Ping,XU Changmin,ZHENG Peng.Monitoring and Assessment of Water Quality in the Lower Reaches of Chishui River Basin[J].Chinese Journal of Tropical Agriculture,2017,37(5):86-90. |
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| Authors: | WANG Zhong CHEN Ping XU Changmin ZHENG Peng |
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| Institution: | 1 Xishui County Environmental Monitoring Station, Zunyi, Guizhou 564600;1 Xishui County Environmental Monitoring Station, Zunyi, Guizhou 564600;1 Xishui County Environmental Monitoring Station, Zunyi, Guizhou 564600;2 Science and Technology Department, South China Agricultural University, Guangzhou, Guangdong 510642 |
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| Abstract: | The water quality in the lower reaches of Chishui River was investigated for 2 years, and the water pollution was evaluated by using the method of comprehensive pollution index. The results showed that the CODMn content in the surface water ranged from 1.10 to 4.20 mg/L with an average of (1.76 ± 0.79)mg/L. The BOD5 content ranged from 0.40 to 2.00 mg/L with an average of (1.01±0.45) mg/L. The NH4+-N content ranged from 0.16 to 0.62 mg/L within an average of (0.31±0.12) mg/L. The TP content ranged from 0.02 to 0.11 mg/L with an average of (0.05±0.03) mg/L. The DO content ranged from 8.0 to 12.9 mg/L with an average of (10.5±1.42) mg/L. The analysis of the comprehensive pollution indexes showed that the water was at the clean level. However, there were some changes in different seasons. The water quality in the lower reaches of Chishui River was the best in the high water period, followed by the normal water period, and the worst in the dry season. All the indicators reached the water standard of class III. This experiment which lasted for two years indicated that all the indicators showed a downward trend except TP. |
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| Keywords: | Chishui River water quality monitoring pollution evaluation |
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