2013年-2015年赤峰市土壤中铅、镉和pH值监测结果分析  

Analysis of monitoring results of lead,cadmium and p H in soil of Chifeng during 2013-2015

作　　者：李萌萌[1] 代永霞[1] 红平[1] 

机构地区：[1]赤峰市疾病预防控制中心,内蒙古赤峰024000

出　　处：《中国卫生检验杂志》2017年第6期875-877,880,共4页Chinese Journal of Health Laboratory Technology

摘　　要：目的调查土壤中重金属的污染状况,为政府制定政策提供依据。方法随机抽取3个旗县区,每个旗县区抽取20个村庄的土壤作为样本。采用GB/T 17141—1997《土壤质量铅、镉的测定石墨炉原子吸收分光光度法》、GB/T17140—1997《土壤质量铅、镉的测定KI-MIBK萃取火焰原子吸收分光光度法》和NY/T 1377—2007《土壤p H的测定》进行,根据GB 15618—1995《土壤环境质量标准》进行评价。结果目前赤峰市林西县、克什克腾旗、宁城县3个地区土壤状况质量良好,未受到过多污染。但是克什克腾旗20个村庄土壤平均p H值2014年和2015年较2013年有4%和3%的增幅,p H值有上升趋势。结论赤峰市林西县、克什克腾旗、宁城县3个地区2013年-2015年土壤中铅和镉的含量均符合判定标准要求。Objective To provide basis for the government to make corresponding policy by investigating detailed situation of heavy metal pollution in soil. Methods The soil samples randomly were selected from 20 villages of 3 counties in Chifeng and determined according to GB/T 17141-1997 The Soil Quality—Determination of Lead,Cadmium-Graphite Furnace Atomic Absorption Spectrophotometry and GB/T 17140-1997 The Soil Quality Determination of Lead,Cadmium—KI-MIBK Extraction Flame Atomic Absorption Spectrop Hotometry and GB15618-1995 The Environmental Quality Standard for Soils. Results The soil quality in Linxi county,Hexigten Banner and Ningcheng county is good currently. The land was not polluted seriously.However,the average value of p H of 20 villages in Hexigten Banner during 2014-2015 has increased 4% and 3%,compared with the value in 2013,showing an increasing trend. Conclusion The contents of lead and cadmium in soil from 2013 to 2015 in Linxi county,Hexigten Banner,Ningcheng county are in accordance with the standard requirements.

关 键 词：土壤质量 铅、镉 监测 

分 类 号：X53[环境科学与工程—环境工程]