title: Occurrence, characteristics and leakage of polybrominated diphenyl ethers in leachate from municipal solid waste landfills in China.
abstract: Raw leachate samples were collected from various municipal solid waste (MSW) landfills in a densely populated city in North China to measure the levels and compositional patterns of polybrominated diphenyl ethers (PBDEs) in leachate. The total concentration of PBDEs ranged from 4.0 to 351.2 ng/L, with an average of 73.0 ng/L. BDE-209 dominated the congeners in most of the samples, followed by BDE-47 and -99. Higher PBDEs concentrations were found in leachate from younger landfill facilities in the urban area. Pearson correlation analysis implied a potential dependence of the PBDEs level on landfill age, suspended solids and dissolved organic carbon, while the results of principal component analysis (PCA) suggested potential origins and transportation of PBDEs in leachate. The Monte Carlo method was adopted to estimate the annual leakage of PBDEs into the underground environment nationwide, based on two main scenarios: simple landfills with inadequate liner systems and composite-lined landfills with defective geomembranes.
authors.affiliation: State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), School of Environment, Tsinghua University, Beijing 100084, China. Electronic address: lum0610@gmail.com.
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Jinhui
authors.initials: J
authors.lastname: Li
authors.forename: Chao
authors.initials: C
authors.lastname: Deng
mesh_terms: D002681:China; D002947:Cities; D004784:Environmental Monitoring; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D012037:Refuse Disposal; D062611:Solid Waste; D064091:Waste Disposal Facilities; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D055768:Halogenated Diphenyl Ethers; D062611:Solid Waste; D014874:Water Pollutants, Chemical
keywords: Dissolved organic matter (DOM); Groundwater contamination; Leachate; Municipal solid waste (MSW) landfill; Polybrominated diphenyl ethers (PBDEs)