Ozone production and trace gas correlations during the June 2000 MINATROC intensive measurement campaign at Mt. Cimone

An intensive measurement campaign was performed in June 2000 at the Mt. Cimone station (44°11' N-10°42' E, 2165 m asl, the highest mountain in the northern Italian Apennines) to study photochemical ozone production in the lower free troposphere. In general, average mixing ratios of important trace gases were not very high (121 ± 20 ppbv CO, 0.284 ± 0.220 ppbv NOx, 1.15 ± 0.8 ppbv NOy, 58 ± 9 ppbv O3), which indicates a small contribution by local pollution. Those trace gas levels are representative of continental background air, which is further supported by the analysis of VOCs (e.g.: C2H6 = (905 ± 200) pptv, C3H8 = (268 ±110) pptv, C2H2 = (201 ± 102) pptv, C5H8 = (111 ± 124) pptv, benzene = (65 ± 33) pptv). Furthermore, significant diurnal variations for a number of trace gases (O3, CO, NOx, NOy, HCHO) indicate the presence of free tropospheric airmasses at nighttime as a consequence of local catabatic winds. Average mid-day peroxy radical concentrations at Mt. Cimone are of the order of 30 pptv. At mean NO concentrations of the order of 40 pptv this gives rise to significant in situ net O3 production of 0.1-0.3 ppbv/hr. The importance of O3 production is supported by correlations between O3, CO, NOz, and HCHO, and between HCHO, CO and NOy.

Citation proposal
Horst Fischer (Max Planck Institute for Chemistry) - T. Klupfel (Max Planck Institute for Chemistry) - Christian Gurk (Max Planck Institute for Chemistry) - R. Konigstedt (Max Planck Institute for Chemistry) - U. Parchatka (Max Planck Institute for Chemistry) - J. Muhle (Max Planck Institute for Chemistry) - T. S. Rhee (Max Planck Institute for Chemistry, Atmospheric Chemistry Division) - C. A. M. Brenninkmeijer () - Paolo Bonasoni (Institute of Atmospheric Sciences and Climate (ISAC) - CNR) - Andreas Stohl (Department of Ecology, Technical University Munich,) (2003) . Ozone production and trace gas correlations during the June 2000 MINATROC intensive measurement campaign at Mt. Cimone. Copernicus GmbH (Copernicus Publications) https://geoportal.mountaingenius.org/geonetwork/srv/api/records/9a479cc3-221c-4306-a908-1cd1f77c06ab

Simple

Alternate title: ACP - Special Issue

Date ( Publication ): 2003-06-16T00:00:00

Edition

Presentation form: Hardcopy document

Presentation form: Digital document

Name: Mineral dust and tropospheric chemistry (MINATROC 2000)

Issue identification: 3

Page: 725-738

Other citation details: Atmos. Chem. Phys., 3, 725-738, 2003

Collective title: Mineral dust and tropospheric chemistry (MINATROC 2000)

ISBN

ISSN: 1680-7316

Purpose

Status: Completed

Point of contact

European Commission, Joint Research Centre, Institute for Environment and Sustainability - Rita Van Dingenen ( )

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