Seasonal, diurnal and nocturnal variations of carbonyl compounds in the semi-urban environment of Orléans, France - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles American Journal of Environmental Sciences Year : 2016

Seasonal, diurnal and nocturnal variations of carbonyl compounds in the semi-urban environment of Orléans, France

Abstract

Atmospheric carbonyls were measured at a semi-urban site in Orléans, France, from October 2010 to July 2011. Formaldehyde, acetaldehyde and acetone were found to be the most abundant carbonyls, with average concentrations of 3.1, 1.0, 2.0 ppb, respectively in summer, 2.3, 0.7, 2.2 ppb, respectively in autumn, 2.2, 1.0, 2.1 ppb, respectively in spring, and 1.5, 0.7, 1.1 ppb, respectively in winter. Photo-oxidation of volatile organic compounds (VOCs) was found to make a remarkable contribution to atmospheric carbonyls in the semi-urban site based on the distinct seasonal and diurnal variations of the carbonyls, as well as the significantly positive correlations between the carbonyls and ozone. The significantly negative correlations between NOx and O3 as well as the carbonyls and the positive correlations between wind speed and O3 as well as the carbonyls implied that the carbonyls and O3 at the semi-urban site were probably formed during air mass transport from neighboring cities.

Dates and versions

insu-01314540 , version 1 (11-05-2016)

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Cite

Zhaohui Jiang, Benoît Grosselin, Véronique Daële, Abdelwahid S Mellouki, Yujing Mu. Seasonal, diurnal and nocturnal variations of carbonyl compounds in the semi-urban environment of Orléans, France. American Journal of Environmental Sciences, 2016, 40, pp.84-91. ⟨10.1016/j.jes.2015.11.016⟩. ⟨insu-01314540⟩
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