中文摘要：

环境保护部《一般工业固体废物贮存、处置场污染控制标准》（GB18599-2001）等3项国家污染物控制标准修改单公告（公告2013年第36号）中指出：应依据环境影响评价结论确定场址的位置及其与周围人群的距离。尾矿库大气环境防护距离的计算，由于其特殊性，目前尚未形成共识。结合某尾矿库项目环评实例，根据尾矿库风洞实验确定尾矿库扬尘源强公式，根据尾矿库扬尘产生特性，对SCREEN3模型进行修正。结果表明：在保持尾矿砂一定含水率（湿度小于1％）及尾矿粒径组成（尾中砂和尾细砂〈30％）情况下，地面贡献浓度达标的距离不会大于1500m，折算到尾矿库坝基外侧，确定大气环境防护距离。

英文摘要：

Environmental protection department ＂ general industrial solid waste storage, disposal field pollution control standards＂ （GB18599-2001） and other 3 national pollutant control standards for the modification of the single announcement （Notice No. thirty-sixth） in 2013 show that：the location of tailing dam and the atmospheric environmental protection distance should be determined by environmental impact assessment. Because of its special nature ,there is not yet a consensus in calcu- lation on and methods of atmospheric environmental protection distance of railings. Combining with the environmental assess- ment on a tailing dam, and by means of wind tunnel test, the dust source strength formula of the tailings reservoir is deter- mined, and the calculation model of the SCREEN3 model is modified based on the characteristics of dust. Results show that ground concentration distance will be less than 1 500 meters when humidity of railings is less than 1% and ratio of tail sand and fine sand is less than 30% ,which are converted to the outside of the dam foundation to determine atmospheric environment and hygienic prevention distances.