摘要
为了了解祊河水中重金属污染现状,评价河水中Pb、Hg、Cr、As、Cd5种重金属污染程度,将祊河分5个断面采样,采用单因子污染指数法对祊河水中重金属的含量进行普查和分析。采用ICP-OES法测定其中的重金属元素含量。结果发现,祊河河水中的Pb、Hg、Cr、As、Cd5种重金属的平均含量分别为0.00423、0.07643、0.00127、0.04301、0.00057mg/L。将河水测定结果与《地表水环境质量标准GB3838—2002》比较,由单因子指数法评价,河水中Pb、Cr和Cd单因子污染指数均小于1,为清洁水平。监测所有水样中,As单因子指数最大值是1.4788,最小值是0.5596,As的综合污染指数为1.1180,为轻微污染。监测所有水样中,Hg单因子指数值最大是912.3,单因子指数最小值是666.4,综合污染指数值为645.1,说明所属水体中汞污染非常严重。
In order to establish the database for the distribution of the heavy metal content inside Beng River in the vicinity of Linyi Area, the author conducted the survey and analysis of the contents of heavy metals in Beng River. Through survey, using ICP-OES method for determination of heavy metals content, it was found that average content of heavy metals inside Beng River about Pb, Hg, Cr, As and Cd were 0.00423 mg/L, 0.07643 mg/L, 0.00127 mg/L, 0.04301 mg/L, and 0.00057 mg/L, respectively. River measurement results compared with ＇The Environment Quality Standard for Surface Water GB 3838 — 2002＇ , according to the single-factor index method, the single factor pollution index of Pb, Cr and Cd about the Beng River water was less than 1 and proved to be clean level. The maximum data value of the single factor index for arsenic within all water samples was 1.4788, the minimum was 0.5596. The integrated pollution index of arsenic for Beng River was 1.1180, confirmed minor contamination. The maximum data value of the single factor index for mercury within all water samples was 912.3, the minimum was 666.4, the integrated pollution index was 645.1. This showed that the mercury pollution was very serious.
出处
《中国农学通报》
CSCD
2013年第20期176-180,共5页
Chinese Agricultural Science Bulletin
基金
山东省自然科学基金项目(Y2008E22)
临沂市科技发展计划项目(0716019)
青年科学基金(41201228)
大学生创新创业训练项目(201210452004)
关键词
河水
重金属
单因子评价
river water
heavy metal
single-factor valuation
