CAJ | 학술논문

砷是煤中有害的微量元素之一，针对目前煤中砷对环境和人类健康的危害问题，本文依据全国已发表的煤样数据资料，对不同时代、不同煤变质程度和各省市煤样品中砷的含量重新进行了统计分析，结果表明统计数据频率直方图和频率密度曲线呈单峰且近于对称，显示了煤中砷的含量呈正态分布的特性。参照前人提出的煤中砷含量分级标准，提出了我国煤中砷含量新分级标准。最后，针对煤中砷的污染防治和砷含量限值给出了相关建议。
신시매중유해적미량원소지일，침대목전매중신대배경화인류건강적위해문제，본문의거전국이발표적매양수거자료，대불동시대、불동매변질정도화각성시매양품중신적함량중신진행료통계분석，결과표명통계수거빈솔직방도화빈솔밀도곡선정단봉차근우대칭，현시료매중신적함량정정태분포적특성。삼조전인제출적매중신함량분급표준，제출료아국매중신함량신분급표준。최후，침대매중신적오염방치화신함량한치급출료상관건의。
Arsenic is one of the detrimental trace elements in coal .It is harmful to environment and human health .On the basis of data of arsenic content in coals has published in China until now ,A statistic analysis of arsenic in coal of different ages ,in different degree of metamorphism and at different provinces has been done .The results show that the frequency histogram for data and frequency density curve of data is unimodal and nearly symmetric .It indicates that the distribution of arsenic in coal fitting the normal distribution .Combining with the previous standard of arsenic content in coal ,A new gradation for arsenic is put forward .Finally ,A series prevention against arsenic pollution by coal usage and the threshold of arsenic in coal use are proposed .