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Abstract

A series of smog chamber experiments have been conducted in which five cyclic monoterpenes were oxidized by OH radicals. The evolved secondary aerosol was analyzed by GC-MS and HPLC-MS for non-volatile polar oxidation products with emphasis on the identification of carboxylic acids. Three classes of compounds were determined at concentration levels corresponding to low percentage molar yields: i.e. dicarboxylic acids, oxo-carboxylic acids, and hydroxy-keto-carboxylic acids. Carboxylic acids are highly polar and have lower vapour pressures than their corresponding aldehydes and may thus play an important role in secondary organic aerosol formation processes.

Additional information

Authors: LARSEN BO R, European Commission, Jont Research Centre, Ispra (IT);DI BELLA D, European Commission, Jont Research Centre, Ispra (IT);GLASIUS M, European Commission, Jont Research Centre, Ispra (IT);WINTHERHALTER R, European Commission, Jont Research Centre, Ispra (IT);JENSEN N R, European Commission, Jont Research Centre, Ispra (IT);HJORTH J, European Commission, Jont Research Centre, Ispra (IT)
Bibliographic Reference: Article: Journal of Atmospheric Chemistry, further details unavailable
Availability: Journal of Atmospheric Chemistry
Record Number: 200012153 / Last updated on: 2000-08-10
Category: PUBLICATION
Original language: en
Available languages: en