龙岩市部分地区农田土壤中铅、镉含量结果分析  

Analysis on the lead and cadmium content in Farmland Soils in Longyan City

作　　者：张声灿[1] 陈美珠[1] 谢恺[1] 林琴香 陈慧琴[1] 

机构地区：[1]龙岩市疾病预防控制中心,福建龙岩364000

出　　处：《疾病监测与控制》2016年第11期865-866,共2页Journal of Diseases Monitor and Control

摘　　要：目的了解龙岩市部分地区农田土壤中铅、镉含量所处土壤标准级别现状，为合理的农业生产提供依据。方法用石墨炉原子吸收分光光度法或者火焰原子吸收法测定两县市144份农田土壤中铅、镉含量并进行统计分析。结果统计结果表明，144份农田土壤中铅、镉含量变化范围分别为1．22~252．5mg／kg、未检出～0．469mg／kg，平均值分别是106．5mg／kg、0．156mg／kg。铅、镉含量符合国家土壤环境质量一级标准限制值分别占总量的25．7％、61．1％，符合国家土壤环境质量二级标准限制值分别占总量的74．3％、38．9％，三级标准限制值均未符合。公里沿线和工厂附近农田土壤中铅、镉含量相对会比较高。结论综合情况表明，目前我市两县市农田土壤中铅、镉含量均符合二级标准以上的要求，总体而言农田土壤铅、镉受污染程度较低。Objective to understand the status of the standard level of lead and cadmium in Farmland Soils in some areas of Longyan City, and to provide the basis for rational agricultural production. Methods Determination of lead and cadmium in 144 soil of two counties and cities by graphite furnace atomic absorption spectrometry or flame atomic absorption spectrometry. Results the results showed that the content of Pb and Cd in 144 farmland soil was 1.22~252.5 mg/kg, and the average value was 106. 5mg/Mg, and the average value was 0.469 kg/0. 156mg, kg/kg, respectively. Lead and cadmium content conforms to the national environmental quality standard for soils limit value accounted for 25.7%, 61.1%, in line with the national secondary standard of soil environment quality and the limit value accounted for 74.3%, 38.9%, limiting values of the three criteria were not met. Lead and cadmium content in farmland soils along the route and the plant is relatively high. Conclusion Comprehensive show that the content of lead and cadmium in our county farmland soil are in line with the above grade II standard requirements, the overall lead and cadmium in the soil of farmland by the pollution degree is low.

关 键 词：重金属污染 农田 土壤 龙岩市 

分 类 号：R124[医药卫生—环境卫生学]