广西南宁朝阳溪对浅层地下水污染特征研究
文章利用5个钻孔和3个水井监测资料，分析了广西南宁朝阳溪排污沟对周边浅层地下水的影响。结果表明，朝阳溪排污沟对周边浅层地下水产生了明显的污染，特征污染物为氧氨，浓度超过地下水环境质量Ⅲ类水质标准1～65．75倍，氨氮浓度随距朝阳溪的距离增大而逐渐减小，且具有季节变化特征，丰水期污染程度明显低于枯水期。分析认为，浅层地下水的三氮主要来源于排入朝阳溪的人畜粪便；多环芳烃主要来源于草、木、煤燃烧；DDT来源于历史残留，BHCs则来源于上游林丹的使用和远距离大气沉降。...
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| Published in | 中国岩溶 Vol. 34; no. 4; pp. 395 - 401 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国地质科学院岩溶地质研究所/国土资源部、广西壮族自治区岩溶动力学重点实验室/岩溶生态系统与石漠化治理重点实验室,广西桂林,541004
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4810 |
| DOI | 10.11932/karst20150413 |
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| Summary: | 文章利用5个钻孔和3个水井监测资料，分析了广西南宁朝阳溪排污沟对周边浅层地下水的影响。结果表明，朝阳溪排污沟对周边浅层地下水产生了明显的污染，特征污染物为氧氨，浓度超过地下水环境质量Ⅲ类水质标准1～65．75倍，氨氮浓度随距朝阳溪的距离增大而逐渐减小，且具有季节变化特征，丰水期污染程度明显低于枯水期。分析认为，浅层地下水的三氮主要来源于排入朝阳溪的人畜粪便；多环芳烃主要来源于草、木、煤燃烧；DDT来源于历史残留，BHCs则来源于上游林丹的使用和远距离大气沉降。 |
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| Bibliography: | city drainage ditches, shallow groundwater, pollution characteristics, ammonia nitrogen 45-1157/P LU Hai-ping, KONG Xiang-sheng, ZOU Sheng-zhang, MIAO Ying, LI Lu-juan （Institute of Karst Geology, CAGS / Key Laboratory of Karst Dynamic, MLR＆GZAR / Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification, Guilin, Guangxi 541004, China） Rivers in urban and suburban areas, which often become sewage ditches, are the key reason of the deterioration of urban water environment and ecosystem. The Chaoyangxi river is located in Xixiangtang district, north of Nanning City. As it has long used as a waste receptor without timely treatment, large amount of heavy metals and organic sludges are suspended in the water and deposited on channel bed. This river, with water characterised by black color, very unfavorable odor and high phosphorus and high heavy metal contents, is one of the most seriously polluted inland rivers and the famous stinking ditch in Nanning. The study area is located in the Lianchou village |
| ISSN: | 1001-4810 |
| DOI: | 10.11932/karst20150413 |