Photochemistry of 2,2', 4,4', %,5'-hexabde (BDE-153) in THF and adsorbed on SiO2: first observation of OH reactivity of BDEs on aerosol

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Photochemistry of 2,2', 4,4', %,5'-hexabde (BDE-153) in THF and adsorbed on SiO2: first observation of OH reactivity of BDEs on aerosol. / Zetzsch, Cornelius; Palm, Wolf-Ulrich; Krüger, Heinz-Ulrich.
In: Organohalogen Compounds, Vol. 60, 2004, p. 2256-2261.

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@article{aa86585434504458bf4f1aec3d7f0d81,
title = "Photochemistry of 2,2', 4,4', %,5'-hexabde (BDE-153) in THF and adsorbed on SiO2: first observation of OH reactivity of BDEs on aerosol",
abstract = "BDE-153 (2,2',4,4',5,5'-hexabromo diphenylether) is a component of the flame retardant mixtures penta- and octaBDE and a trace constituent of decaBDE. Furthermore, it may occur as a minor intermediate in the photolysis of decaBDE. We have previously studied the UV spectrum and quantum yield for the photolysis of BDE-153 in tetrahydrofuran (THF) solution3, and we now present a comparison of the photolytic degradation pathways of this symmetrical molecule in solution and adsorbed at sub-monlayer thickness on aerosol particles, made of fused silica (Aerosil 380), in an aerosol smog chamber facility. Furthermore, the aerosol smog chamber technique allows us to expose aerosol-borne compounds to OH radicals, which are known to clean the atmosphere efficiently from air pollutants. Atmospheric residence times of air pollutants can then be assessed from the rate constants for the reaction with OH radicals, and a first, preliminary result on BDE-153 + OH will be presented. ",
keywords = "Chemistry",
author = "Cornelius Zetzsch and Wolf-Ulrich Palm and Heinz-Ulrich Kr{\"u}ger",
note = "ISBN 3-928379-30-5; TRN: DE07G1355; 24. international symposium on halogenated environmental organic pollutants and POPs - Dioxin 2004, Dioxin 2004 ; Conference date: 06-09-2004 Through 10-09-2004",
year = "2004",
language = "English",
volume = "60",
pages = "2256--2261",
journal = "Organohalogen Compounds",
issn = "1026-4892",
publisher = "Eco-Informa Press",

}

RIS

TY - JOUR

T1 - Photochemistry of 2,2', 4,4', %,5'-hexabde (BDE-153) in THF and adsorbed on SiO2

T2 - 24. international symposium on halogenated environmental organic pollutants and POPs - Dioxin 2004

AU - Zetzsch, Cornelius

AU - Palm, Wolf-Ulrich

AU - Krüger, Heinz-Ulrich

N1 - Conference code: 24

PY - 2004

Y1 - 2004

N2 - BDE-153 (2,2',4,4',5,5'-hexabromo diphenylether) is a component of the flame retardant mixtures penta- and octaBDE and a trace constituent of decaBDE. Furthermore, it may occur as a minor intermediate in the photolysis of decaBDE. We have previously studied the UV spectrum and quantum yield for the photolysis of BDE-153 in tetrahydrofuran (THF) solution3, and we now present a comparison of the photolytic degradation pathways of this symmetrical molecule in solution and adsorbed at sub-monlayer thickness on aerosol particles, made of fused silica (Aerosil 380), in an aerosol smog chamber facility. Furthermore, the aerosol smog chamber technique allows us to expose aerosol-borne compounds to OH radicals, which are known to clean the atmosphere efficiently from air pollutants. Atmospheric residence times of air pollutants can then be assessed from the rate constants for the reaction with OH radicals, and a first, preliminary result on BDE-153 + OH will be presented.

AB - BDE-153 (2,2',4,4',5,5'-hexabromo diphenylether) is a component of the flame retardant mixtures penta- and octaBDE and a trace constituent of decaBDE. Furthermore, it may occur as a minor intermediate in the photolysis of decaBDE. We have previously studied the UV spectrum and quantum yield for the photolysis of BDE-153 in tetrahydrofuran (THF) solution3, and we now present a comparison of the photolytic degradation pathways of this symmetrical molecule in solution and adsorbed at sub-monlayer thickness on aerosol particles, made of fused silica (Aerosil 380), in an aerosol smog chamber facility. Furthermore, the aerosol smog chamber technique allows us to expose aerosol-borne compounds to OH radicals, which are known to clean the atmosphere efficiently from air pollutants. Atmospheric residence times of air pollutants can then be assessed from the rate constants for the reaction with OH radicals, and a first, preliminary result on BDE-153 + OH will be presented.

KW - Chemistry

M3 - Conference article in journal

VL - 60

SP - 2256

EP - 2261

JO - Organohalogen Compounds

JF - Organohalogen Compounds

SN - 1026-4892

Y2 - 6 September 2004 through 10 September 2004

ER -