摘要
以焦作市某化工厂生产厂区周围土壤（0～20cm）中氟元素为研究对象，采用氟离子选择电极法测定土壤中氟质量分数，分析了氟污染物对厂区周围浅层土壤的影响．结果表明，研究区域土壤pH值呈偏碱性，土壤中总氟质量分数为197．1～1115mg／kg，平均质量分数为（540．57±120．15）mg／kg，高于全国土壤背景值（478mg／kg）和总氟平均值（491mg／kg），低于氟病区总氟质量分数；土壤中水溶性氟质量分数为7．32～34．98mg／kg，平均质量分数为（19．61±3．95）mg／kg，稍高于我国一些地氟病区土壤水溶性氟质量分数，应引起有关部门的重视．
The fluoride impact on soil is analyzed by using the fluorine element in the soil （0-20 cm） around a fluoride producing chemical plant in Jiaozuo city. F concentrations is determinated with ion selective electrode method. The results show that soil pH is weak alkaline, and the contents of total fluoride in soil ranges from 197. 1 mg/kg to 1 115 mg/kg, and average is （540.57 ＋ 120. 15） mg/kg , which is higher than fluoride background content of 478 mg/kg and average fluoride content in China, and lower than that of some epidemic fluorosis areas in China ; the contents of water - soluble fluoride in soil ranged from 7.32 mg/kg to 36.2 mg/kg , and average is （ 19.61±3.95 ） mg/kg, which is higher than that of some epidemic fluorosis areas in China. So the fluorine pollution in the studied area should be attached great importance by related departmeut of government.
出处
《河南理工大学学报（自然科学版）》
CAS
2009年第6期796-800,共5页
Journal of Henan Polytechnic University（Natural Science）
关键词
土壤
总氟
水溶性氟
PH值
soil
total fluoride
water - soluble fluoride
pH
