石煤暴露环境发氟分布规律及影响因子

为了探明石煤暴露环境中发氟含量的分布规律及影响因子,结合病情调查,采集发样进行元素含量测定.结果表明,石煤暴露环境发氟含量个体差异显著,呈非正态分布,平均值为67.08±64.68μg/g,变异系数为96.42%;发氟含量同Ca、Mn、Se的含量呈显著正相关,同Ti含量呈显著负相关;因子分析显示发氟含量分布除受体内生化反应控制外,与表生地球化学环境、膳食结构以及饮用水的水质等因子也密切相关.

Distribution Pattern of Hair Fluoride and Its Affected Factors in Coal-Exposed Environment

To find out the distribution pattern of hair fluoride and its affected factors in coal-exposed environment, human hairs were collected according epidemiological investigation, and contents of fluoride and other life-relative elements in the samples were determined. Results shown that the fluoride content in human hairs had a notable individual differentia, its distribution pattern was anomalous distribution with average fluoride content 67.08 +/- 64.68 micrograms/g and coefficient of variation 96.42%. There were significant positive correlation between F and Ca, Mn, Se as well as significant negative correlation between F and Ti. Factor analysis shown the fluoride content in human hairs was affected by factors such as inner biochemical reaction, outer geochemical environment, structure of food-web and quality of drinking water.