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Ozone Production in Remote Oceanic and Industrial Areas Derived from Ship Based Measurements of Peroxy Radicals During Texaqs 2006 : Volume 10, Issue 10 (07/10/2010)

By Sommariva, R.

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Book Id: WPLBN0003972142
Format Type: PDF Article :
File Size: Pages 39
Reproduction Date: 2015

Title: Ozone Production in Remote Oceanic and Industrial Areas Derived from Ship Based Measurements of Peroxy Radicals During Texaqs 2006 : Volume 10, Issue 10 (07/10/2010)  
Author: Sommariva, R.
Volume: Vol. 10, Issue 10
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2010
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Roberts, J. M., Zahniser, M. S., Monks, P. S., Kuster, W. C., Brookes, D. M., Lerner, B. M.,...Bon, D. (2010). Ozone Production in Remote Oceanic and Industrial Areas Derived from Ship Based Measurements of Peroxy Radicals During Texaqs 2006 : Volume 10, Issue 10 (07/10/2010). Retrieved from http://worldebooklibrary.com/


Description
Description: Earth System Research Laboratory, NOAA, Boulder, CO, USA. During the Texas Air Quality Study II (TexAQS 2006) campaign, a PEroxy Radical Chemical Amplifier (PERCA) was deployed on the NOAA research vessel R/V Brown to measure total peroxy radicals (HO2+ΣRO2). Day-time mixing ratios of HO2+ΣRO2 between 25 and 110 ppt were observed throughout the study area – the Houston/Galveston region and the Gulf coast of the U.S. – and analyzed in relation to measurements of nitrogen oxides, volatile organic compounds (VOC) and photolysis rates to assess radical sources and sinks in the region.

The measurements of HO2+ΣRO2 were used to calculate the in-situ net photochemical formation of ozone. Measured median values ranged from 0.6 ppb/h in clean oceanic air masses up to several tens of ppb/h in the most polluted industrial areas. The results are consistent with previous studies and generally agree with observations made during the previous TexAQS 2000 field campaign. The net photochemical ozone formation rates determined at Barbours Cut, a site immediately south of the Houston Ship Channel, were analyzed in relation to local wind direction and VOC reactivity to understand the relationship between ozone formation and local VOC emissions.

The measurements of HO2+ΣRO2 made during the R/V Brown TexAQS 2006 cruise indicate that ozone formation is NOx-limited in the Houston/Galveston region and influenced by highly reactive hydrocarbons, especially alkenes from urban and industrial sources and their photooxidation products, such as formaldehyde.


Summary
Ozone production in remote oceanic and industrial areas derived from ship based measurements of peroxy radicals during TexAQS 2006

Excerpt
Andr{é}s-Hern{á}ndez, M. D., Stone, D., Brookes, D. M., Commane, R., Reeves, C. E., Huntrieser, H., Heard, D. E., Monks, P. S., Burrows, J. P., Schlager, H., Kartal, D., Evans, M. J., Floquet, C. F. A., Ingham, T., Methven, J., and Parker, A. E.: Peroxy radical partitioning during the AMMA radical intercomparison exercise, Atmos. Chem. Phys. Discuss., 10, 8447–8486, doi:10.5194/acpd-10-8447-2010, 2010.; Atkinson, R., Cox, R. A., Crowley, J. N., Hampson, R. F., Hynes, R. G., Jenkin, M. E., Kerr, J. A., Rossi, M. J., and Troe, J.: Summary of evaluated kinetic and photochemical data for atmospheric chemistry, Tech. rep., IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry, http://www.iupac-kinetic.ch.cam.ac.uk/, 2006.; Banta, R. M., Senff, C. J., White, A. B., Trainer, M., McNider, R. T., Valente, R. J., Mayor, S. D., Alvarez, R. J., Hardesty, R. M., Parrish, D., and Fehsenfeld, F. C.: Daytime buildup and nighttime transport of urban ozone in the boundary layer during a stagnation episode, J. Geophys. Res., 103, 22519–22544, 1998.; Banta, R. M., Senff, C. J., Nielsen-Gammon, J., Darby, L. S., Ryerson, T. B., Alvarez, R. J., Sandberg, S. P., Williams, E. J., and Trainer, M.: A bad air day in Houston, B. Am. Meteorol. Soc., 86, 657–669, 2005.; Bates, T. S., Quinn, P. K., Coffman, D., Schulz, K., Covert, D. S., Johnson, J. E., Williams, E. J., Lerner, B. M., Angevine, W. M., Tucker, S. C., Brewer, W. A., and Stohl, A.: Boundary layer aerosol chemistry during TexAQS/GoMACCS 2006; insights into aerosol sources and transformation processes, J. Geophys. Res., 113, D00F01, doi:10.1029/2008JD010023, 2008.; Cantrell, C. A., Stedman, D. H., and Wendel, G. J.: Measurement of atmospheric peroxy radicals by chemical amplification, Anal. Chem., 56, 1496–1502, 1984.; Cantrell, C. A., Shetter, R. E., Gilpin, T. M., and Calvert, J. G.: Peroxy radicals measured during Mauna Loa Observatory Photochemistry Experiment 2: the data and first analysis, J. Geophys. Res., 101, 14643–14652, 1996.; Fleming, Z. L., Monks, P. S., Rickard, A. R., Heard, D. E., Bloss, W. J., Seakins, P. W., Still, T. J., Sommariva, R., Pilling, M. J., Morgan, R., Green, T. J., Brough, N., Mills, G. P., Penkett, S. A., Lewis, A. C., Lee, J. D., Saiz-Lopez, A., and Plane, J. M. C.: Peroxy radical chemistry and the control of ozone photochemistry at Mace Head, Ireland during the summer of 2002, Atmos. Chem. Phys., 6, 2193–2214, doi:10.5194/acp-6-2193-2006, 2006.; Frost, G. J., Trainer, M., Mauldin, R. L., Eisele, F. L., Prevot, A. S. H., Flocke, S. J., Madronich, S., Kok, G., Schillawski, R. D., Baumgarden, D., and Bradshaw, J.: Photochemical modeling of OH level during the First Areosol Characterization Experiment (ACE1), J. Geophys. Res., 104, 16041–16052, 1999.; Gilman, J. B., Kuster, W. C., Goldan, P. D., Herndon, S. C., Zahniser, M. S., Tucker, S. C., Brewer, W. A., Lerner, B. M., Williams, E. J., Harley, R. A., Fehsenfeld, F. C., Warneke, C., and de Gouw, J. A.: Measurements of volatile organic compounds during the 2006 TexAQS/GoMACCS campaign: industrial influences, regional characteristics, and diurnal dependencies of the OH reactivity, J. Geophys. Res., 114, D00F06, doi:10.1029/200

 

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