事务(进程 ID 58)与另一个进程被死锁在 锁 资源上，并且已被选作死锁牺牲品。请重新运行该事务。 长株潭地区集中式饮用水水源地周边土壤环境质量监测与评价-《水土保持研究》

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长株潭地区集中式饮用水水源地周边土壤环境质量监测与评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 25 期数: 2018年03期 页码: 150-156 栏目: 出版日期: 2018-04-10
Title:
Monitoring and Evaluation of Soil Environmental Quality Around the Concentrated Drinking Water Source in Changsha-Zhuzhou-Xiangtan Area
作者:
杨海君1, 张海涛1, 许云海1, 刘亚宾1, 金红玉1, 王雅玲1, 刑宏霖1,2
1. 湖南农业大学 植物保护学院, 长沙 410128;
2. 湖南省环境监测中心站, 长沙 410014
Author(s):
YANG Haijun1, ZHANG Haitao1, XU Yunhai1, LIU Yabin1, JIN Hongyu1, WANG Yaling1, XING Honglin1,2
1. Hunan Agricultural University, Changsha 410128, China;
2. Environmental Monitoring Station of Hunan Province, Changsha 410014, China
关键词:
Keywords:
分类号:
X820.4
摘要:
为了解长株潭地区集中式饮用水水源地周边土壤环境质量情况，以长株潭地区6处具有代表性的集中式饮用水水源地周边土壤为监测对象，对采集土壤样品中的pH值、阳离子交换量、有机质含量及典型污染物进行了测定与分析。结果表明：长株潭地区6个集中式饮用水水源地周边土壤中pH值、阳离子交换量及有机质含量存在差异；30个监测点位土壤中Cd，Pb，Zn，As和Ni平均含量超标率分别为63.33%，63.33%，73.33%，33.33%，13.33%，Hg，Cr，Cu平均含量超标率均为16.67%，六氯环己烷、滴滴涕及苯并[a]芘含量均未超标；单因子评价和综合评价得出，水源地周边土壤主要以无机污染为主，只有3个监测点位存在有机污染，所有监测点位的土壤均受到无机有机复合污染；主成分分析得出，Cr，Cu，Ni，Zn，六氯环己烷，Cd，As、苯并[a]芘、Hg等污染物所占比重较大，构成了监测点位土壤污染的主要成分；聚类分析发现，水源地周边土壤中苯并[a]芘、六氯环己烷及滴滴涕可归为一类，Cr，Ni，Cu可归为一类，Pb，Zn可归为一类，而As，Hg，Cd各单独归为一类，并对饮用水水源地周边土壤中污染物来源及防治措施进行分析与讨论。研究结果为保护长株潭地区集中式饮用水水源地安全提供了理论依据。
Abstract:
In order to understand the environmental quality of the surrounding drinking water source in Changsha-Zhuzhou-Xiangtan area, The pH value, cation exchange capacity, organic matter content and typical pollutants in the collected soil samples from the surrounding soil of the centralized drinking water source area in Changsha-Zhuzhou-Xiangtan area were measured and analyzed. The results showed that there were differences in pH value, cation exchange capacities and organic matter contents in the surrounding soil of six centralized drinking water sources in Changsha-Zhuzhou-Xiangtan area; the average exceeding rates of contents of Cd, Pb, Zn, As and Ni in the 30 monitoring sites were 63.33%, 63.33%, 73.33%, 33.33% and 13.33%, respectively, the average exceeding rates of Hg,Cr,Cu were 16.67%, Hexachlorocyclohexane, DDT and benzo[a] pyrene did not exceed the standard values; single factor evaluation and comprehensive evaluation showed that the surrounding soil of drinking water sources area was mainly polluted by inorganic pollutants, and only 3 monitoring points had organic pollution. All the soils at the monitoring sites were subjected to the combined inorganic-organic pollution; the principal component analysis showed that Cr, Cu, Ni, Zn, Hexachlorocyclohexane, Cd, As, Benzo[a] pyrene and Hg accounted for the large proportion of pollutants, which constitute the main components of the pollution problem in the soil of monitoring points. Cluster analysis found that the surrounding soil of the water source area that the benzene[a] pyrene, hexachlorocyclohexane and DDT can be classified as the same class, Cr, Ni, Cu can be classified as the same class, Pb, Zn can be classified as the same class, and As, Hg, Cd, can be classified as the same class, respectively, the source and control measures of pollutants in the surrounding soil of drinking water source were analyzed and discussed. The results of this study can provide the theoretical basis for the safety of centralized drinking water source in Changshang-Zhuzhou-Xiangtan area.

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更新日期/Last Update: 1900-01-01