摘要
2017年9月下旬沿博尔塔拉河采集水样41个,分析了各个样点6种重金属(Cr、Cu、Zn、As、Cd、Pb)的含量变化和空间分布特征,并结合河流周边环境特征分析了各重金属的来源,同时利用国家标准值和重金属污染指数(HPI)对区域重金属污染状况进行了评价,结果表明:(1)博尔塔拉河地表水中6种重金属Cr、Cu、Zn、As、Pb和Cd含量的空间差异性均处于中高等变异水平,其中Zn、Cd和Pb的含量高值点主要位于下游的艾比湖湖区附近,Cu的含量高值点位于博乐市周边及下游区域,Cr和As的含量高值点多集中于中下游区域,结合周边环境特征判断Zn、Cd和Pb是受耕作施肥、交通和工农业活动的共同影响,而Cr和As主要受农业活动的影响。(2)根据《地表水环境质量标准》和《生活饮用水卫生标准》及HPI指数评价表明应加强中下游区域地表水中As和Pb的监控力度,本研究对了解区域河水重金属污染状况及区域水环境安全的保障具有重要的意义。
In late September 2017,41 water samples were collected along the Bortala River.The content changes and spatial distribution characteristics of six heavy metals(Cr,Cu,Zn,As,Cd,Pb)were analyzed and combined with the environmental characteristics around river,the sources of heavy metals were analyzed.At the same time,the national standard value and heavy metals pollution index(HPI)were used to evaluate the regional heavy metal pollution.The results showed that:(1)The spatial variability of six heavy metals are all in the middle and high variation level.The high contents of Zn,Cd and Pb are mainly located around the Ebinur Lake.The high value of Cu is located in the Bole City and downstream area,the high values of Cr and As are concentrated in the middle and lower reaches.Combined with the surrounding environmental characteristics,Zn,Cd and Pb are jointly affected by farming,transportation,industrial and industrial activities,while Cr and As are mainly affected by agriculture.(2)According to the'Surface Water Environmental Quality Standards','Sanitary Standards for Drinking Water'and the HPI Index,it is indicated that the monitoring of As and Pb in surface water in the middle and lower reaches should be strengthened.This study is of great significance for understanding the pollution status of heavy metal in regional rivers and the protection of regional water environment.
作者
张伟燕
马龙
吉力力.阿不都外力
葛拥晓
蒲佳
华攸胜
ZHANG Weiyan;MA Long;JILILI Abuduwaili;GE Yongxiao;PU Jia;HUA Yousheng(State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China;Chinese Academy of Sciences Research Center for Ecology and Environment of Central Asia,Urumqi 830011,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2019年第7期100-106,共7页
Journal of Arid Land Resources and Environment
基金
自治区青年科技创新人才培养项目(QN2016BS0052)
国家自然科学基金项目(41501115)资助
关键词
博尔塔拉河
地表水重金属
来源分析
污染评价
heavy metals in surface water
source analysis
pollution assessment
Bortala River
