title: Incidence of polybrominated diphenyl ethers in central air conditioner filter dust from a new office building.
abstract: This study examined polybrominated diphenyl ethers (PBDEs) in central air conditioner filter (CACF) dust from a new office building in Shenzhen, China. Human exposure to PBDE via dust inhalation and ingestion were also estimated. PBDEs level in CACF dust was lower than those in the other countries and regions. Approximately 0.671 pg/kg bw/day PM(2.5) (Particulate Matter up to 2.5 μm in size) bounded Σ(15)PBDEs can be inhaled deep into the lungs and 4.123 pg/kg bw/day PM(10) (Particulate Matter up to 10 μm in size) bounded Σ(15)PBDEs tend to be deposited in the upper parts of the respiratory system. The average total intake of Σ(15)PBDEs via dust inhalation and ingestion for adults reached ∼ 141 pg/kg bw/day in this building. This value was far below the reference dose (RfD) recommended by United States Environmental Protection Agency. Human exposure to PBDEs via dust inhalation and ingestion in the new building is less than the old ones.
authors.affiliation: Shenzhen Key Laboratory of Circular Economy, Shenzhen Graduate School, Peking University, Shenzhen 518055, China.
authors.forename: Hong-Gang
authors.initials: HG
authors.lastname: Ni
authors.forename: Shan-Ping
authors.initials: SP
authors.lastname: Cao
authors.forename: Wen-Jing
authors.initials: WJ
authors.lastname: Chang
authors.forename: Hui
authors.initials: H
authors.lastname: Zeng
mesh_terms: D000389:Air Conditioning / Q000295:instrumentation*; D016902:Air Pollution, Indoor / Q000032:analysis*; D004391:Dust / Q000032:analysis*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D006794:Household Articles; D006801:Humans
chemical_list: D004391:Dust; D055768:Halogenated Diphenyl Ethers