陕南煤矿煤炭氟砷含量调查

目的 了解陕南煤炭产区各主要煤矿煤炭的氟砷含量,为制订防治策略提供科学依据.方法 于2006-2007年选择安康、汉中两市下辖的6个主要煤炭矿区县62个煤矿进行现场采样,以高温燃烧水解电极法测定煤氟;以原子荧光光度法测定煤砷.结果 62个被调查煤矿的煤氟含量最高值3 053.04 mg/kg,最小值6.58 mg/kg,算术均值为1 034.30mg/kg,几何均值为656.85 mg/kg;煤砷含量最高值484.71 mg/kg,最小值29.64 mg/kg,算术均值为197.64 mg/kg,几何均值为174.29 mg/kg.结论 本次调查的62个煤矿煤炭氟砷含量超标严重,尤以石煤矿为甚.

Abstract：

Objective Identify the arsenic and fluorin contents in coal from major producing coal mines in south of Shaanxi,providing a scientific foundation for the formulation of the prevention strategy.Methods In the 6 major coal mine areas governed by Ankang and Hanzhong city,the 62 mines with comparatively large production scales and sales locally,which may have some effective forces on the causing of the local arsenic and fluorin poisoning,were inveatigated,on-the-spot sampling are carried out,the fluorine in coal was determined by the combustion-hydrolysis/fluoride-ion selective electrode method and the arsenic in coal was determined by the atomic fluorescence.Results The maximum of the fluoride content in coal from the 62 investigated coal mines was 3 053.04 mg/kg,and the minimum was 6.58 mg/kg;the arithmetic mean was 1 034.30 mg/kg;the geometric mean was 656.85mg/kg;The maximum of arsenic content in coal was 484.71mg/kg.and the minimum was 29.64 mg/kg;the arithmetic mean was197.64 mg/kg,the geometric mean was 174.29 mg/kg.Conclusion The contents of fluoride and arsenic are seriously exceeded the standard limits in the 62 investigated coal mines.especially in stone coal mines.

The Survey of Arsenic and Fluoride Levels in Coal from Coal Mines in South of Shaanxi

Objective Identify the arsenic and fluorin contents in coal from major producing coal mines in south of Shaanxi,providing a scientific foundation for the formulation of the prevention strategy.Methods In the 6 major coal mine areas governed by Ankang and Hanzhong city,the 62 mines with comparatively large production scales and sales locally,which may have some effective forces on the causing of the local arsenic and fluorin poisoning,were inveatigated,on-the-spot sampling are carried out,the fluorine in coal was determined by the combustion-hydrolysis/fluoride-ion selective electrode method and the arsenic in coal was determined by the atomic fluorescence.Results The maximum of the fluoride content in coal from the 62 investigated coal mines was 3 053.04 mg/kg,and the minimum was 6.58 mg/kg;the arithmetic mean was 1 034.30 mg/kg;the geometric mean was 656.85mg/kg;The maximum of arsenic content in coal was 484.71mg/kg.and the minimum was 29.64 mg/kg;the arithmetic mean was197.64 mg/kg,the geometric mean was 174.29 mg/kg.Conclusion The contents of fluoride and arsenic are seriously exceeded the standard limits in the 62 investigated coal mines.especially in stone coal mines.