title: Characterization of odor emission on the working face of landfill and establishing of odorous compounds index.
abstract: Temporal variation (seasonal and daily) of odor emission on the working face of a large sanitary landfill in China was characterized through a 2 yearlong case study. Odor pollution was most serious in spring and autumn, while lower odor concentrations were detected in summer and winter. The daily fluctuation of odor concentration on the working face showed that 2:00am, 6:00am, 2:00pm and 10:00pm were the "most probable times" for odor pollution occurrence, which deserves focused attention in odor control projects. Correlations analysis found that 41% of the variance in odor concentrations can be explained by the chemical concentrations of odorous compounds. Moreover, the selection criteria for the index of odorous compounds were also established by evaluating the odor concentration, contribution to odor strength and the frequency of each compound present in all the samples. Ethyl alcohol, α-piene, hydrogen sulfide, dimethyl sulfide, limonene, methyl mercaptan, dimethyl disulfide, and diethyl sulfide comprise the index of odorous compounds on the working face of typical municipal solid waste landfill in China.
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China. Electronic address: luwenjing@tsinghua.edu.cn.
authors.forename: Lu
authors.initials: L
authors.lastname: Wenjing
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China; Administrative Bureau for Environmental Sanitation of Changchun City, Changchun 130021, China.
authors.forename: Duan
authors.initials: D
authors.lastname: Zhenhan
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China.
authors.forename: Li
authors.initials: L
authors.lastname: Dong
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China.
authors.forename: Luis Miguel Caicedo
authors.initials: LM
authors.lastname: Jimenez
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China.
authors.forename: Liu
authors.initials: L
authors.lastname: Yanjun
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China.
authors.forename: Guo
authors.initials: G
authors.lastname: Hanwen
authors.affiliation: School of Environment, Tsinghua University, Beijing 100084, China.
authors.forename: Wang
authors.initials: W
authors.lastname: Hongtao
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004784:Environmental Monitoring; D009812:Odorants / Q000032:analysis*; D012037:Refuse Disposal; D012621:Seasons; D062611:Solid Waste / Q000032:analysis; D064091:Waste Disposal Facilities
chemical_list: D000393:Air Pollutants; D062611:Solid Waste
keywords: Landfill; Odor concentration; Odorous compounds index; Selection criteria; Working face