常熟市氟化工业园氟污染现状分析

目的了解氟化工企业对常熟市大气、食物氟污染状况。方法选择该市氟化工业园所在镇及1个无化工企业的镇作为对照，用滤膜法进行空气采样，用离子选择电极法对空气和食物中氟含量进行检测。结果氟化工业园区空气氟含量为0．46μg／m3，蔬菜及水产品中氟含量分别为1．54，2．24mg／kg，超过标准。河水和蔬菜中氟浓度[（1．64±1．64）mg／L和（1．54±1．27）mg／kg]均高于对照区[（0．65±0．30）mg／L和（0．62±0．25）mg／kg]结论空气中氟浓度两地均未超过标准，且差异无统计学意义，但蔬菜及河水中的氟浓度两地差异有统计学意义，有必要进一步调查研究。

Analysis on Fluoride Pollution in Fluoride Industrial Park of Changshu City

[ Objective] To understand the fluoride pollution on atmosphere and food in Changshu City by fluorine chemical enterprise. [ Methods] One town in which fluoride industrial park located and 1 town without chemical enterprise were selected. Filter membrane method and ion selective electrode method were adopted to conduct air sampling and fluorine measurement in air and food, respectively. [ Results ] Fluorine content in the air was 0.46 μg/m3, that in vegetables and aquatic products was 1.54 mg/kg and 2.24 mg/kg, respectively which exceeded standards. Fluoride concentrations in fiver [ （ 1. 64 ± 1. 64 ） mg/L and vegetables { 1.54 ± 1.27 ） mg/L] were higher than those in control areas[ （ 0.65 ± 0 . 30 } mg / L and （ 0.62 ± 0.25 ） mg / L]. [ Conclusion ] Fluoride concentration in the air between the 2 areas do not exceed the standard, and there is no significant difference; but the differences of fluoride concentration in vegetables and river are significant between them.