title: [Some theoretical and technical problems of dust sampling in air of working places].
authors: Lei
authors: L
authors: Yang
authors: Wei-Hong
authors: WH
authors: Chen
authors: Zheng-Lun
authors: ZL
authors: Wang
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D004391:Dust / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods; D017132:Workplace
chemical_list: D000395:Air Pollutants, Occupational; D004391:Dust