| Zugriffsnummer | 28670 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Exploring the atmospheric chemistry of nitrous acid (HONO) at a rural site in Southern China |
| Autor(in); Institution |
Li, X.; Research Center Jülich, Jülich, GERMANY
Brauers, T.; Research Center Jülich, Jülich, GERMANY
Häseler, R.; Research Center Jülich, Jülich, GERMANY
Bohn, B.; Research Center Jülich, Jülich, GERMANY
Fuchs, H.; Research Center Jülich, Jülich, GERMANY
Hofzumahaus, A.; Research Center Jülich, Jülich, GERMANY
Holland, F.; Research Center Jülich, Jülich, GERMANY
Lou, S.; Research Center Jülich, Jülich, GERMANY
Lu, K. D.; Research Center Jülich, Jülich, GERMANY
Rohrer, F.; Research Center Jülich, Jülich, GERMANY
Hu, M.; Peking University, Beijing, CHINA
Zeng, L. M.; Peking University, Beijing, CHINA
Zhang, Y. H.; Peking University, Beijing, CHINA
Garland, R. M.; Max-Planck Institute for Chemistry, Mainz, GERMANY
Su, H.; Max-Planck Institute for Chemistry, Mainz, GERMANY
Nowak, Andreas; 3.2, Gasanalytik und Zustandsverhalten, PTB-Braunschweig
Wiedensohler, A.; Leibniz Institute for Tropospheric Research, Leipzig, GERMANY
Takegawa, N.; University of Tokyo, Tokyo, Japan
Shao, M.; Peking University, Beijing, CHINA
Wahner, A.; Research Center Jülich, Jülich, GERMANY
|
| Quelle/Jahr | Atmospheric Chemistry and Physics:(2012), 12, 1497 - 1513 |
| ISSN | 1680-7324 |
| DOI | |
| Verlag | Göttingen: Copernicus Publ. |
| Freie Schlagworte | HONO production ; OH radical ; photocatalysis ; atmospheric chemistry and physics |
| Zusammenfassung | We performed measurements of nitrous acid (HONO) during the PRIDE-PRD2006 campaign in the Pearl River Delta region 60 km north of Guangzhou, China, for 4 weeks in June 2006. HONO was measured by a LOPAP in-situ instrument which was setup in one of the campaign supersites along with a variety of instruments measuring hydroxyl radicals, trace gases, aerosols, and meteorological parameters.Maximum diurnal HONO mixing ratios of 1–5 ppb were observed during the nights. We found that the nighttime build-up of HONO can be attributed to the heterogeneous NO2 to HONO conversion on ground surfaces and the OH+NO reaction. In addition to elevated nighttime mixing ratios, measured noontime values of ≈ 200 ppt indicate the existence of a daytime source higher than the OH+NO → HONO reaction. Using the simultaneously recorded OH, NO, and HONO photolysis frequency, a daytime additional source strength of HONO (PM) was calculated to be 0.77 ppb h−1 on average. This value compares well to previous measurements in other environments. Our analysis of PM provides evidence that the photolysis of HNO3 adsorbed on ground surfaces contributes to the HONO formation. |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 3.0 ; Creative Commons Attribution 3.0 License |
Zitierung
Li, X., Brauers, T., Häseler, R., Bohn, B., Fuchs, H., Hofzumahaus, A., Holland, F., Lou, S., Lu, K. D., Rohrer, F., Hu, M., Zeng, L. M., Zhang, Y. H., Garland, R. M., Su, H., Nowak, A., Wiedensohler, A., Takegawa, N., Shao, M., & Wahner, A. (2012). Exploring the atmospheric chemistry of nitrous acid (HONO) at a rural site in Southern China. Atmospheric Chemistry and Physics, 1497–1513. https://doi.org/10.5194/acp-12-1497-2012