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Assessment of indoor HONO formation mechanisms based on in situ measurements and modeling
Author(s) -
Mendez M.,
Blond N.,
Amedro D.,
Hauglustaine D. A.,
Blondeau P.,
Afif C.,
Fittschen C.,
Schoemaecker C.
Publication year - 2017
Publication title -
indoor air
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.387
H-Index - 99
eISSN - 1600-0668
pISSN - 0905-6947
DOI - 10.1111/ina.12320
Subject(s) - environmental science , sorption , indoor air quality , indoor air , in situ , saturation (graph theory) , air quality index , environmental chemistry , meteorology , environmental engineering , chemistry , physics , mathematics , adsorption , combinatorics
The photolysis of HONO has been found to be the oxidation driver through OH formation in the indoor air measurement campaign SURFin, an extensive campaign carried out in July 2012 in a classroom in Marseille. In this study, the INCA‐Indoor model is used to evaluate different HONO formation mechanisms that have been used previously in indoor air quality models. In order to avoid biases in the results due to the uncertainty in rate constants, those parameters were adjusted to fit one representative day of the SURFin campaign. Then, the mechanisms have been tested with the optimized parameters against other experiments carried out during the SURFin campaign. Based on the observations and these findings, we propose a new mechanism incorporating sorption of NO 2 onto surfaces with possible saturation of these surfaces. This mechanism is able to better reproduce the experimental profiles over a large range of conditions.