Study on Dust Emission Characteristics of Construction Sites in Hengyang City

[摘要] In this study, six typical construction sites in Hengyang City were selected to monitor the dust emission concentration in earthwork stage, main structure stage and decoration stage. The average monitoring time of each stage is 2 or 3 days, totally 15 days. 45 samples of quartz filter were obtained. The initial emission factors and emission inventory of building dust were estimated based on FDM model. The results show that the average net concentration of earthwork stage, Main structure stage and decoration stage are 162 ug/m3, 72 ug/m3 and 54 ug/m3 respectively. PM10 emission factor is the largest in the stage of earthwork foundation, followed by the stage of main structure, and the lowest in the stage of decoration. The actual emission factors are 0.449, 0.177 and 0.149 g/(m2.h).

[发布机构] University of South China, 28 Changsheng West Road, Zhengxiang District, Hengyang City, Hunan Province, China^1

[效力级别] 化学工业 [学科分类] 材料科学（综合）

[关键词] Construction sites;Dust emission;Emission factors;Emission inventories;Main structure;Monitoring time;PM10 emissions;Quartz filters