Search Results - "Veres, P R"

Characterization of biomass burning emissions from cooking fires, peat, crop residue, and other fuels with high-resolution proton-transfer-reaction time-of-flight mass spectrometry by Stockwell, C. E, Veres, P. R, Williams, J, Yokelson, R. J

“…We deployed a high-resolution proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS) to measure biomass-burning emissions from peat, crop…”
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Biomass burning emissions and potential air quality impacts of volatile organic compounds and other trace gases from fuels common in the US by Gilman, J B, Lerner, B M, Kuster, W C, Goldan, P D, Warneke, C, Veres, P R, Roberts, J M, de Gouw, J A, Burling, I R, Yokelson, R J

“…A comprehensive suite of instruments was used to quantify the emissions of over 200 organic gases, including methane and volatile organic compounds (VOCs), and…”
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Measurements of hydroxyl and hydroperoxy radicals during CalNex‐LA: Model comparisons and radical budgets by Griffith, S. M., Hansen, R. F., Dusanter, S., Michoud, V., Gilman, J. B., Kuster, W. C., Veres, P. R., Graus, M., Gouw, J. A., Roberts, J., Young, C., Washenfelder, R., Brown, S. S., Thalman, R., Waxman, E., Volkamer, R., Tsai, C., Stutz, J., Flynn, J. H., Grossberg, N., Lefer, B., Alvarez, S. L., Rappenglueck, B., Mielke, L. H., Osthoff, H. D., Stevens, P. S.

“…Measurements of hydroxyl (OH) and hydroperoxy (HO2*) radical concentrations were made at the Pasadena ground site during the CalNex‐LA 2010 campaign using the…”
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An Odd Oxygen Framework for Wintertime Ammonium Nitrate Aerosol Pollution in Urban Areas: NOx and VOC Control as Mitigation Strategies by Womack, C. C., McDuffie, E. E., Edwards, P. M., Bares, R., Gouw, J. A., Docherty, K. S., Dubé, W. P., Fibiger, D. L., Franchin, A., Gilman, J. B., Goldberger, L., Lee, B. H., Lin, J. C., Long, R., Middlebrook, A. M., Millet, D. B., Moravek, A., Murphy, J. G., Quinn, P. K., Riedel, T. P., Roberts, J. M., Thornton, J. A., Valin, L. C., Veres, P. R., Whitehill, A. R., Wild, R. J., Warneke, C., Yuan, B., Baasandorj, M., Brown, S. S.

“…Wintertime ammonium nitrate aerosol pollution is a severe air quality issue affecting both developed and rapidly urbanizing regions from Europe to East Asia…”
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HONO emission and production determined from airborne measurements over the Southeast U.S by Neuman, J. A., Trainer, M., Brown, S. S., Min, K.‐E., Nowak, J. B., Parrish, D. D., Peischl, J., Pollack, I. B., Roberts, J. M., Ryerson, T. B., Veres, P. R.

“…The sources and distribution of tropospheric nitrous acid (HONO) were examined using airborne measurements over the Southeast U.S. during the Southeast Nexus…”
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Formaldehyde production from isoprene oxidation across NOx regimes by Wolfe, G M, Kaiser, J, Hanisco, T F, Keutsch, F N, de Gouw, J A, Gilman, J B, Graus, M, Hatch, C D, Holloway, J, Horowitz, L W, Lee, B H, Lerner, B M, Lopez-Hilifiker, F, Mao, J, Marvin, M R, Peischl, J, Pollack, I B, Roberts, J M, Ryerson, T B, Thornton, J A, Veres, P R, Warneke, C

“…The chemical link between isoprene and formaldehyde (HCHO) is a strong, nonlinear function of NOx (i.e., NO + NO2). This relationship is a linchpin for…”
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An MCM modeling study of nitryl chloride (ClNO 2 ) impacts on oxidation, ozone production and nitrogen oxide partitioning in polluted continental outflow by Riedel, T. P, Wolfe, G. M, Danas, K. T, Gilman, J. B, Kuster, W. C, Bon, D. M, Vlasenko, A, Li, S.-M, Williams, E. J, Lerner, B. M, Veres, P. R, Roberts, J. M, Holloway, J. S, Lefer, B, Brown, S. S, Thornton, J. A

“…Nitryl chloride (ClNO2) is produced at night by reactions of dinitrogen pentoxide (N2O5) on chloride containing surfaces. ClNO2 is photolyzed during the…”
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Understanding high wintertime ozone pollution events in an oil- and natural gas-producing region of the western US by Ahmadov, R, McKeen, S, Trainer, M, Banta, R, Brewer, A, Brown, S, Edwards, P. M, de Gouw, J. A, Frost, G. J, Gilman, J, Helmig, D, Johnson, B, Karion, A, Koss, A, Langford, A, Lerner, B, Olson, J, Oltmans, S, Peischl, J, Pétron, G, Pichugina, Y, Roberts, J. M, Ryerson, T, Schnell, R, Senff, C, Sweeney, C, Thompson, C, Veres, P. R, Warneke, C, Wild, R, Williams, E. J, Yuan, B, Zamora, R

“…Recent increases in oil and natural gas (NG) production throughout the western US have come with scientific and public interest in emission rates, air quality…”
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Investigation of secondary formation of formic acid: urban environment vs. oil and gas producing region by Yuan, B, Veres, P. R, Warneke, C, Roberts, J. M, Gilman, J. B, Koss, A, Edwards, P. M, Graus, M, Kuster, W. C, Li, S.-M, Wild, R. J, Brown, S. S, Dubé, W. P, Lerner, B. M, Williams, E. J, Johnson, J. E, Quinn, P. K, Bates, T. S, Lefer, B, Hayes, P. L, Jimenez, J. L, Weber, R. J, Zamora, R, Ervens, B, Millet, D. B, Rappenglück, B, de Gouw, J. A

“…Formic acid (HCOOH) is one of the most abundant carboxylic acids in the atmosphere. However, current photochemical models cannot fully explain observed…”
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Transition from high- to low-NOx control of night-time oxidation in the southeastern US by Edwards, P. M., Aikin, K. C., Dube, W. P., Fry, J. L., Gilman, J. B., de Gouw, J. A., Graus, M. G., Hanisco, T. F., Holloway, J., Hübler, G., Kaiser, J., Keutsch, F. N., Lerner, B. M., Neuman, J. A., Parrish, D. D., Peischl, J., Pollack, I. B., Ravishankara, A. R., Roberts, J. M., Ryerson, T. B., Trainer, M., Veres, P. R., Wolfe, G. M., Warneke, C., Brown, S. S.

“…The influence of nitrogen oxides (NO x ) on daytime atmospheric oxidation cycles is well known, with clearly defined high- and low-NO x regimes. During the…”
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Dimethyl sulfide in the Amazon rain forest by Jardine, K., Yañez-Serrano, A. M., Williams, J., Kunert, N., Jardine, A., Taylor, T., Abrell, L., Artaxo, P., Guenther, A., Hewitt, C. N., House, E., Florentino, A. P., Manzi, A., Higuchi, N., Kesselmeier, J., Behrendt, T., Veres, P. R., Derstroff, B., Fuentes, J. D., Martin, S. T., Andreae, M. O.

“…Surface‐to‐atmosphere emissions of dimethyl sulfide (DMS) may impact global climate through the formation of gaseous sulfuric acid, which can yield secondary…”
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Peroxynitric acid (HO 2 NO 2 ) measurements during the UBWOS 2013 and 2014 studies using iodide ion chemical ionization mass spectrometry by Veres, P R, Roberts, J M, Wild, R J, Edwards, P M, Brown, S S, Bates, T S, Quinn, P K, Johnson, J E, Zamora, R J, de Gouw, J

“…In this paper laboratory work is documented establishing iodide ion chemical ionization mass spectrometry (I- CIMS) as a sensitive method for the unambiguous…”
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Chlorine as a primary radical: evaluation of methods to understand its role in initiation of oxidative cycles by Young, C. J, Washenfelder, R. A, Edwards, P. M, Parrish, D. D, Gilman, J. B, Kuster, W. C, Mielke, L. H, Osthoff, H. D, Tsai, C, Pikelnaya, O, Stutz, J, Veres, P. R, Roberts, J. M, Griffith, S, Dusanter, S, Stevens, P. S, Flynn, J, Grossberg, N, Lefer, B, Holloway, J. S, Peischl, J, Ryerson, T. B, Atlas, E. L, Blake, D. R, Brown, S. S

“…The role of chlorine atoms (Cl) in atmospheric oxidation has been traditionally thought to be limited to the marine boundary layer, where they are produced…”
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Characterisation of NO production and consumption: new insights by an improved laboratory dynamic chamber technique by Behrendt, T, Veres, P. R, Ashuri, F, Song, G, Flanz, M, Mamtimin, B, Bruse, M, Williams, J, Meixner, F. X

“…Biogenic NOx emissions from natural and anthropogenically influenced soils are currently estimated to amount to 9 Tg a−1, hence a significant fraction of…”
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Hydrocarbon Removal in Power Plant Plumes Shows Nitrogen Oxide Dependence of Hydroxyl Radicals by Gouw, J. A., Parrish, D. D., Brown, S. S., Edwards, P., Gilman, J. B., Graus, M., Hanisco, T. F., Kaiser, J., Keutsch, F. N., Kim, S.‐W., Lerner, B. M., Neuman, J. A., Nowak, J. B., Pollack, I. B., Roberts, J. M., Ryerson, T. B., Veres, P. R., Warneke, C., Wolfe, G. M.

“…During an airborne study in the Southeast United States, measured mixing ratios of biogenic hydrocarbons were systematically lower in air masses containing…”
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Development of a photochemical source for the production and calibration of acyl peroxynitrate compounds by Veres, P. R, Roberts, J. M

“…A dynamic system for the calibration of acyl peroxynitrate compounds (APNs) has been developed in the laboratory to reduce the difficulty, required time, and…”
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Reactive nitrogen partitioning and its relationship to winter ozone events in Utah by Wild, R J, Edwards, P M, Bates, T S, Cohen, R C, de Gouw, J A, Dubé, W P, Gilman, J B, Holloway, J, Kercher, J, Koss, A R, Lee, L, Lerner, B M, McLaren, R, Quinn, P K, Roberts, J M, Stutz, J, Thornton, J A, Veres, P R, Warneke, C, Williams, E, Young, C J, Yuan, B, Zarzana, K J, Brown, S S

“…High wintertime ozone levels have been observed in the Uintah Basin, Utah, a sparsely populated rural region with intensive oil and gas operations. The…”
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Measurements of hydrogen sulfide (H 2 S) using PTR-MS: calibration, humidity dependence, inter-comparison and results from field studies in an oil and gas production region by Li, R, Warneke, C, Graus, M, Field, R, Geiger, F, Veres, P. R, Soltis, J, Li, S.-M, Murphy, S. M, Sweeney, C, Pétron, G, Roberts, J. M, de Gouw, J

“…Natural gas production is associated with emissions of several trace gases, some of them classified as air toxics. While volatile organic compounds (VOCs) have…”
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Heterogeneous formation of nitryl chloride and its role as a nocturnal NOx reservoir species during CalNex-LA 2010 by Mielke, L. H., Stutz, J., Tsai, C., Hurlock, S. C., Roberts, J. M., Veres, P. R., Froyd, K. D., Hayes, P. L., Cubison, M. J., Jimenez, J. L., Washenfelder, R. A., Young, C. J., Gilman, J. B., de Gouw, J. A., Flynn, J. H., Grossberg, N., Lefer, B. L., Liu, J., Weber, R. J., Osthoff, H. D.

“…The nocturnal conversion of dinitrogen pentoxide (N2O5) to nitryl chloride (ClNO2) on chloride‐containing aerosol can be a regionally important NOx (= NO +…”
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Airborne measurements of the atmospheric emissions from a fuel ethanol refinery by de Gouw, J. A., McKeen, S. A., Aikin, K. C., Brock, C. A., Brown, S. S., Gilman, J. B., Graus, M., Hanisco, T., Holloway, J. S., Kaiser, J., Keutsch, F. N., Lerner, B. M., Liao, J., Markovic, M. Z., Middlebrook, A. M., Min, K.-E., Neuman, J. A., Nowak, J. B., Peischl, J., Pollack, I. B., Roberts, J. M., Ryerson, T. B., Trainer, M., Veres, P. R., Warneke, C., Welti, A., Wolfe, G. M.

“…Ethanol made from corn now constitutes approximately 10% of the fuel used in gasoline vehicles in the U.S. The ethanol is produced in over 200 fuel ethanol…”
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