绝大多数煤中含有有害微量元素,在煤加工利用过程中迁移析出,且我国是产煤大国,每年有80%的煤被用于直接燃烧,这些元素累积到一定程度会对人体健康及生态环境产生巨大负面影响.针对这一问题,分三个阶段(燃烧前、燃烧中、燃烧后)对煤中有害微量元素迁移规律进行阐述,并提出相应的控制措施.“,”The vast majority of coal contained harmful microelement, which released in the coal processing and utilization.As a coal production country, 80% of coal was used for direct combustion each year in our country, these elements were accumulated to a certain extent, which would have huge negative impact on human health and ecological environment. In order to solve this problem, the moving law of harmful trace elements in coal was expounded in three phases( before burning, burning and after burning), and the corresponding control measures were put forward.