Search Results - "Michoud, V"

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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Study of the unknown HONO daytime source at a European suburban site during the MEGAPOLI summer and winter field campaigns by Michoud, V, Colomb, A, Borbon, A, Miet, K, Beekmann, M, Camredon, M, Aumont, B, Perrier, S, Zapf, P, Siour, G, Ait-Helal, W, Afif, C, Kukui, A, Furger, M, Dupont, J. C, Haeffelin, M, Doussin, J. F

“…Nitrous acid measurements were carried out during the MEGAPOLI summer and winter field campaigns at SIRTA observatory in Paris surroundings. Highly variable…”
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Radical budget analysis in a suburban European site during the MEGAPOLI summer field campaign by Michoud, V, Kukui, A, Camredon, M, Colomb, A, Borbon, A, Miet, K, Aumont, B, Beekmann, M, Durand-Jolibois, R, Perrier, S, Zapf, P, Siour, G, Ait-Helal, W, Locoge, N, Sauvage, S, Afif, C, Gros, V, Furger, M, Ancellet, G, Doussin, J. F

“…Chemical Ionisation Mass Spectrometer measurements of hydroxyl radical (OH) and the sum of hydroperoxy and organic peroxy (HO2+RO2) radicals were conducted…”
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Formation of secondary organic aerosol in the Paris pollution plume and its impact on surrounding regions by Zhang, Q. J, Beekmann, M, Freney, E, Sellegri, K, Pichon, J. M, Schwarzenboeck, A, Colomb, A, Bourrianne, T, Michoud, V, Borbon, A

“…Secondary pollutants such as ozone, secondary inorganic aerosol, and secondary organic aerosol formed in the plumes of megacities can affect regional air…”
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Gaseous products and secondary organic aerosol formation during long term oxidation of isoprene and methacrolein by Brégonzio-Rozier, L, Siekmann, F, Giorio, C, Pangui, E, Morales, S. B, Temime-Roussel, B, Gratien, A, Michoud, V, Ravier, S, Cazaunau, M, Tapparo, A, Monod, A, Doussin, J.-F

“…First- and higher order-generation products formed from the oxidation of isoprene and methacrolein with OH radicals in the presence of NOx have been studied in…”
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Aerosol particle measurements at three stationary sites in the megacity of Paris during summer 2009: meteorology and air mass origin dominate aerosol particle composition and size distribution by Freutel, F, Schneider, J, Drewnick, F, von der Weiden-Reinmüller, S.-L, Crippa, M, Prévôt, A. S. H, Baltensperger, U, Poulain, L, Wiedensohler, A, Sciare, J, Sarda-Estève, R, Burkhart, J. F, Eckhardt, S, Stohl, A, Gros, V, Colomb, A, Michoud, V, Doussin, J. F, Borbon, A, Haeffelin, M, Morille, Y, Beekmann, M, Borrmann, S

“…During July 2009, a one-month measurement campaign was performed in the megacity of Paris. Amongst other measurement platforms, three stationary sites…”
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Characterizing the impact of urban emissions on regional aerosol particles: airborne measurements during the MEGAPOLI experiment by Freney, E. J, Sellegri, K, Canonaco, F, Colomb, A, Borbon, A, Michoud, V, Doussin, J.-F, Crumeyrolle, S, Amarouche, N, Pichon, J.-M, Bourianne, T, Gomes, L, Prevot, A. S. H, Beekmann, M, Schwarzenböeck, A

“…The MEGAPOLI (Megacities: Emissions, urban, regional and Global Atmospheric POLlution and climate effects, and Integrated tools for assessment and mitigation)…”
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Secondary organic aerosol formation from isoprene photooxidation during cloud condensation–evaporation cycles by Brégonzio-Rozier, L, Giorio, C, Siekmann, F, Pangui, E, Morales, S. B, Temime-Roussel, B, Gratien, A, Michoud, V, Cazaunau, M, DeWitt, H. L, Tapparo, A, Monod, A, Doussin, J.-F

“…The impact of cloud events on isoprene secondary organic aerosol (SOA) formation has been studied from an isoprene ∕ NOx ∕ light system in an atmospheric…”
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Detailed characterizations of the new Mines Douai comparative reactivity method instrument via laboratory experiments and modeling by Michoud, V, Hansen, R. F, Locoge, N, Stevens, P. S, Dusanter, S

“…The hydroxyl (OH) radical is an important oxidant in the troposphere, which controls the lifetime of most air quality- and climate-related trace gases…”
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Intercomparison of two comparative reactivity method instruments inf the Mediterranean basin during summer 2013 by Zannoni, N, Dusanter, S, Gros, V, Sarda Esteve, R, Michoud, V, Sinha, V, Locoge, N, Bonsang, B

“…The hydroxyl radical (OH) plays a key role in the atmosphere, as it initiates most of the oxidation processes of volatile organic compounds (VOCs), and can…”
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Evaluating BC and NOx emission inventories for the Paris region from MEGAPOLI aircraft measurements by Petetin, H, Beekmann, M, Colomb, A, der Gon, H A C Denier van, Dupont, J-C, Honore, C, Michoud, V, Morille, Y, Perrussel, O, Schwarzenboeck, A

“…High uncertainties affect black carbon (BC) emissions, and, despite its important impact on air pollution and climate, very few BC emissions evaluations are…”
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Photocatalytic abatement results from a model street canyon by Gallus, M, Ciuraru, R, Mothes, F, Akylas, V, Barmpas, F, Beeldens, A, Bernard, F, Boonen, E, Boréave, A, Cazaunau, M, Charbonnel, N, Chen, H, Daële, V, Dupart, Y, Gaimoz, C, Grosselin, B, Herrmann, H, Ifang, S, Kurtenbach, R, Maille, M, Marjanovic, I, Michoud, V, Mellouki, A, Miet, K, Moussiopoulos, N, Poulain, L, Zapf, P, George, C, Doussin, J. F, Kleffmann, J

“…During the European Life+ project PhotoPAQ (Demonstration of Photocatalytic remediation Processes on Air Quality), photocatalytic remediation of nitrogen…”
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A nitrate ion chemical-ionization atmospheric-pressure-interface time-of-flight mass spectrometer (NO 3 − ToFCIMS) sensitivity study by Alage, Stéphanie, Michoud, Vincent, Harb, Sergio, Picquet-Varrault, Bénédicte, Cirtog, Manuela, Kumar, Avinash, Rissanen, Matti, Cantrell, Christopher

“…​​​​​​​Volatile organic compounds (VOCs) play a key role in tropospheric chemistry, giving rise to secondary products such as highly oxygenated organic…”
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Significant impact of urban tree biogenic emissions on air quality estimated by a bottom-up inventory and chemistry transport modeling by Maison, Alice, Lugon, Lya, Park, Soo-Jin, Baudic, Alexia, Cantrell, Christopher, Couvidat, Florian, D'Anna, Barbara, Di Biagio, Claudia, Gratien, Aline, Gros, Valérie, Kalalian, Carmen, Kammer, Julien, Michoud, Vincent, Petit, Jean-Eudes, Shahin, Marwa, Simon, Leila, Valari, Myrto, Vigneron, Jérémy, Tuzet, Andrée, Sartelet, Karine

“…Biogenic volatile organic compounds (BVOCs) are emitted by vegetation and react with other compounds to form ozone and secondary organic matter (OM). In…”
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Role of Criegee intermediates in the formation of sulfuric acid at a Mediterranean (Cape Corsica) site under influence of biogenic emissions by Kukui, Alexandre, Chartier, Michel, Wang, Jinhe, Chen, Hui, Dusanter, Sébastien, Sauvage, Stéphane, Michoud, Vincent, Locoge, Nadine, Gros, Valérie, Bourrianne, Thierry, Sellegri, Karine, Pichon, Jean-Marc

“…Reaction of stabilized Criegee intermediates (SCIs) with SO2 was proposed as an additional pathway of gaseous sulfuric acid (H2SO4) formation in the…”
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The December 2016 extreme weather and particulate matter pollution episode in the Paris region (France) by Foret, G., Michoud, V., Kotthaus, S., Petit, J.-E., Baudic, A., Siour, G., Kim, Y., Doussin, J.-F., Dupont, J.-C., Formenti, P., Gaimoz, C., Ghersi, V., Gratien, A., Gros, V., Jaffrezo, J.-L., Haeffelin, M., Kreitz, M., Ravetta, F., Sartelet, K., Simon, L., Té, Y., Uzu, G., Zhang, S., Favez, O., Beekmann, M.

“…•Study of an intense winter episode of particulate pollution in the Paris region.•Exceptional stagnant conditions explain the highest concentrations.•Organic…”
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Measurement report: Sources, sinks, and lifetime of NOx in a suburban temperate forest at night by Andersen, Simone T, McGillen, Max R, Xue, Chaoyang, Seubert, Tobias, Dewald, Patrick, Gunther N T E Türk, Schuladen, Jan, Denjean, Cyrielle, Etienne, Jean-Claude, Garrouste, Olivier, Jamar, Marina, Harb, Sergio, Cirtog, Manuela, Michoud, Vincent, Cazaunau, Mathieu, Bergé, Antonin, Cantrell, Christopher, Dusanter, Sebastien, Picquet-Varrault, Bénédicte, Kukui, Alexandre, Mellouki, Abdelwahid, Carpenter, Lucy J, Lelieveld, Jos, Crowley, John N

“…The budget of reactive nitrogen species, which play a central role in atmospheric chemistry (e.g. in photochemical O3 production), is poorly understood in…”
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Characterizing the regional contribution to PM10 pollution over northern France using two complementary approaches: Chemistry transport and trajectory-based receptor models by Potier, E., Waked, A., Bourin, A., Minvielle, F., Péré, J.C., Perdrix, E., Michoud, V., Riffault, V., Alleman, L.Y., Sauvage, S.

“…Atmospheric pollution is a striking regional issue for public health and ecosystems and has major global impacts on climate. Particulate matter (PM) can be of…”
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NO3 reactivity during a summer period in a temperate forest below and above the canopy by Dewald, Patrick, Seubert, Tobias, Andersen, Simone T, Gunther N T E Türk, Schuladen, Jan, McGillen, Max R, Denjean, Cyrielle, Etienne, Jean-Claude, Garrouste, Olivier, Jamar, Marina, Harb, Sergio, Cirtog, Manuela, Michoud, Vincent, Cazaunau, Mathieu, Bergé, Antonin, Cantrell, Christopher, Dusanter, Sebastien, Picquet-Varrault, Bénédicte, Kukui, Alexandre, Xue, Chaoyang, Mellouki, Abdelwahid, Lelieveld, Jos, Crowley, John N

“…We present direct measurements of biogenic volatile organic compound (BVOC)-induced nitrate radical (NO3) reactivity (kVOC) through the diel cycle in the…”
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Intercomparison of IBBCEAS, NitroMAC and FTIR analyses for HONO, NO2 and CH2O measurements during the reaction of NO2 with H2O vapour in the simulation chamber CESAM by Yi, Hongming, Cazaunau, Mathieu, Gratien, Aline, Michoud, Vincent, Pangui, Edouard, Jean-Francois Doussin, Chen, Weidong

“…We report on applications of the ultraviolet-light-emitting-diode-based incoherent broadband cavity-enhanced absorption spectroscopy (UV-LED-IBBCEAS) technique…”
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