title: Laboratory study of the particle-size distribution of Decabromodiphenyl ether (BDE-209) in ambient air.
abstract: Laboratory measurements for particle-size distribution of Decabromodiphenyl ether (BDE-209) were performed in a 0.5 m(3) sealed room at 25 °C. BDE-209 was manually bounded to ambient particles. An electrostatic field-sampler was employed to collect particles. The number of collected particles (n(i,j), i and j was the class of particle diameter and applied voltage on electrostatic field-sampler sampler, respectively) and the corresponding mass of BDE-209 in collected particles (m(∑i,j)) were determined in a series of 6 experiments. The particle-size distribution coefficient (ki) was calculated through equations related to n(i,j) and m(∑i,j), and the particle-size distribution of BDE-209 was determined by ki·n(i,j). Results revealed that BDE-209 distributed in particles of all size and were not affiliated with fine particles as in field measurements. The particle size-fraction should be taken into account when discussing the particle-size distribution of BDE-209 in ambient air due to the normalized coefficients (normalized to k1) and were approximately in the same order of magnitude for each diameter class. The method described in the present study was deemed feasible in determining the particle-size distribution of BDE-209 from vaporization sources and helpful to understanding the instinct rule of particle-size distribution of BDE-209, and potentially feasible for other SVOCs.
authors.affiliation: Department of Environmental Engineering, Shanghai Maritime University, Shanghai, 201306, PR China; IJRC-PTS, Shanghai Maritime University, Shanghai 201306, PR China. Electronic address: phsu@shmtu.edu.cn.
authors.forename: Peng-hao
authors.initials: PH
authors.lastname: Su
authors.affiliation: Department of Environmental Engineering, Shanghai Maritime University, Shanghai, 201306, PR China; IJRC-PTS, Shanghai Maritime University, Shanghai 201306, PR China.
authors.forename: Chun-yan
authors.initials: CY
authors.lastname: Hou
authors.affiliation: Department of Environmental Engineering, Shanghai Maritime University, Shanghai, 201306, PR China; IJRC-PTS, Shanghai Maritime University, Shanghai 201306, PR China.
authors.forename: Dan
authors.initials: D
authors.lastname: Sun
authors.affiliation: Department of Environmental Engineering, Shanghai Maritime University, Shanghai, 201306, PR China; IJRC-PTS, Shanghai Maritime University, Shanghai 201306, PR China.
authors.forename: Dao-lun
authors.initials: DL
authors.lastname: Feng
authors.affiliation: Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.
authors.forename: Thor
authors.initials: T
authors.lastname: Halldorson
authors.affiliation: Department of Environmental Engineering, Shanghai Maritime University, Shanghai, 201306, PR China; IJRC-PTS, Shanghai Maritime University, Shanghai 201306, PR China.
authors.forename: Yong-sheng
authors.initials: YS
authors.lastname: Ding
authors.affiliation: IJRC-PTS-NA, Toronto, Ontario M2N 6X9, Canada.
authors.forename: Yi-fan
authors.initials: YF
authors.lastname: Li
authors.affiliation: Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.
authors.forename: Gregg T
authors.initials: GT
authors.lastname: Tomy
mesh_terms: D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D055768:Halogenated Diphenyl Ethers / Q000032:analysis* / Q000737:chemistry; D008962:Models, Theoretical; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis* / Q000737:chemistry; D055672:Static Electricity
chemical_list: D000393:Air Pollutants; D055768:Halogenated Diphenyl Ethers; D052638:Particulate Matter; C010902:decabromobiphenyl ether
keywords: Decabromodiphenyl ether; Distribution coefficient; Electrostatics field-sampler; Nonlinear equations; Particle-size distribution