Secondary organic aerosol formation by irradiation of 1,3,5-trimethylbenzene-NOx-H2O in a new reaction chamber for atmospheric chemistry and physics


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Date

2005-04-01

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Journal Article

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Abstract

A new environmental reaction smog chamber was built to simulate particle formation and growth similar to that expected in the atmosphere. The organic material is formed from nucleation of photooxidized organic compounds. The chamber is a 27 m³ fluorinated ethylene propylene (FEP) bag suspended in a temperature-controlled enclosure. Four xenon arc lamps (16 kW total) are used to irradiate primary gas components for experiments lasting up to 24 h. Experiments using irradiations of 1,3,5-trimethylbenzene-NOₓ-H₂O at similar input concentrations without seed particles were used to determine particle number and volume concentration wall loss rates of 0.209 ± 0.018 and 0.139 ± 0.070 h⁻¹, respectively. The particle formation was compared with and without propene. © 2005 American Chemical Society.

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published

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Volume

39 (8)

Pages / Article No.

2668 - 2678

Publisher

American Chemical Society

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03430 - Zenobi, Renato (emeritus) / Zenobi, Renato (emeritus) check_circle

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