Articles | Volume 15, issue 16
https://doi.org/10.5194/acp-15-9237-2015
https://doi.org/10.5194/acp-15-9237-2015
Research article
 | 
20 Aug 2015
Research article |  | 20 Aug 2015

A comparison of measured HONO uptake and release with calculated source strengths in a heterogeneous forest environment

M. Sörgel, I. Trebs, D. Wu, and A. Held

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Short summary
We measured near-surface (< 2m) profiles of HONO in a clearing and on a forest floor. Both HONO deposition and emissions were observed. By comparing three postulated sources to observed daytime emissions, we made several important findings: ● conversion of NO2 is mostly independent of light due to light saturation ● HONO emissions from a very acidic soil were low ● photolysis of adsorbed HNO3 could serve as HONO source based on empirical parameters but unlikely via the proposed reaction pathway.
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