title: Characteristics of particulate matter generated while handling municipal household waste.
abstract: OBJECTIVE
  This study was conducted to assess the size characteristics of particulate matter (PM) generated during waste collection and sorting, and to assess the effect of the type of waste-handling activity on levels of coarse and fine PM.
  
  
  METHODS
  A portable aerosol spectrometer calibrated to 1.2 //min was used to monitor PM generated during four types of waste-handling activities. The types of PM measured included inhalable particulate matter (IPM), PM10, respirable particulate matter (RPM), PM2.5 and PM1. Twenty-eight data sets with 3,071 subsets recorded every 6 sec were categorized according to occupational and environmen¬tal classifications, including type of waste-handling activity. An ANOVA was used to compare PM levels characterized by size. Significant variables with p-values <0.25 were included in a multiple regression model for predicting levels of each PM.
  
  
  RESULTS
  The average levels of PM10 and PM2.5 greatly exceeded the air-quality levels enforced by the Korean Ministry of the Environment. The highest PM2.5 fine-particle levels monitored were during waste-transfer work, while the highest IPM and PM10 coarse-particle levels monitored were during waste-sorting work. The type of waste-collection activity was the only factor that significantly affected both PM25 and IPM, accounting for 36% (p=0.0034) and 40% (p=0.0049), respectively, of the observed variations. None of the factors affected PM10 or RPM levels.
  
  
  CONCLUSIONS
  Waste-collection and Waste-transfer work may be associated with the generation of high levels of fine PM, which can be influenced by environ Workmental conditions such as traffic levels and the type of waste transport vehicle.
authors.affiliation: Department of Environmental Health, Korea National Open University.
authors.forename: Donguk
authors.initials: D
authors.lastname: Park
authors.forename: Kyeongmin
authors.initials: K
authors.lastname: Lee
authors.forename: Seunghun
authors.initials: S
authors.lastname: Ryu
authors.forename: Shinbum
authors.initials: S
authors.lastname: Kim
authors.forename: Chungsik
authors.initials: C
authors.lastname: Yoon
authors.forename: Kwonchul
authors.initials: K
authors.lastname: Ha
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis*; D000704:Analysis of Variance; D004784:Environmental Monitoring / Q000379:methods; D006801:Humans; D016273:Occupational Exposure / Q000032:analysis*; D052638:Particulate Matter / Q000032:analysis*; D012037:Refuse Disposal; D056910:Republic of Korea; D018505:Waste Management / Q000379:methods*
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter