Results 41 to 50 of about 9,315 (221)

Analyzing the Impact of Evolving Combustion Conditions on the Composition of Wildfire Emissions Using Satellite Data

Geophysical Research Letters, Volume 50, Issue 23, 16 December 2023., 2023
Abstract Wildfires have become larger and more frequent because of climate change, increasing their impact on air pollution. Air quality forecasts and climate models do not currently account for changes in the composition of wildfire emissions during the commonly observed progression from more flaming to smoldering combustion.
Lindsey D. Anderson, Barbara Dix, Jordan Schnell, Robert Yokelson, J. Pepijn Veefkind, Ravan Ahmadov, Joost de Gouw   +6 more
wiley   +1 more source

Supplementary material to "Field observational constraints on the controllers in glyoxal (CHOCHO) loss to aerosol"

, 2021
Dongwook Kim, Changmin Cho, Seokhan Jeong, Soojin Lee, Benjamin A. Nault, Pedro Campuzano‐Jost, Douglas A. Day, Jason C. Schroder, J. L. Jiménez, Rainer Volkamer, D. R. Blake, Armin Wisthaler, Alan Fried, Joshua P. DiGangi, Glenn S. Diskin, Sally E. Pusede, Samuel R. Hall, Kirk Ullmann, L. G. Huey, David J. Tanner, Jack E. Dibb, Christoph Knote, Kyung‐Eun Min   +22 more
openalex   +2 more sources

Portable broadband cavity-enhanced spectrometer utilizing Kalman filtering: application to real-time, in situ monitoring of glyoxal and nitrogen dioxide [PDF]

, 2017
This article describes the development and field application of a portable broadband cavity enhanced spectrometer (BBCES) operating in the spectral range of 440-480 nm for sensitive, real-time, in situ measurement of ambient glyoxal (CHOCHO) and nitrogen
Chen, Weidong, Fang, Bo, Ma, Xiao, Venables, Dean S., Wang, Shuo, Xu, Xuezhe, Zhang, Weijun, Zhao, Weixiong, Zhou, Jiacheng   +8 more
core   +1 more source

Sustitución parcial de la harina de trigo (Triticun aestivum L.) por harina de chocho (Lupinus mutabilis) en la elaboración de galletas

Revista Colombiana de Investigaciones Agroindustriales, 2023
Las galletas son un producto del área de panificación elaborados generalmente con harina de trigo industrial. El objetivo de la presente investigación consistió en evaluar la incidencia de la sustitución parcial de la harina de trigo (Triticun aestivum ...
Victor Jhoel Cabrera Mera, Jennifer Ivana Benavides Panchana , Andrea Cristina Cortez Espinoza, Jhonnatan Placido Aldas Morejon, Karol Yannela Revilla Escobar   +4 more
doaj   +1 more source

Solid-state formation of CO and H2CO via the CHOCHO + H reaction [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT Glycolaldehyde (CHOCH2OH) and ethylene glycol (HOCH2CH2OH) are among many complex organic molecules detected in the interstellar medium (ISM). Astrophysical models proposed very often that the formation of these compounds would be directly linked to the hydrogenation of glyoxal (CHOCHO), a potential precursor which is not yet ...
Leroux, Killian, Guillemin, Jean-Claude, Krim, Lahouari   +2 more
openaire   +2 more sources

Comparative Analysis of Atmospheric Glyoxal Column Densities Retrieved from MAX-DOAS Observations in Pakistan and during MAD-CAT Field Campaign in Mainz, Germany

Atmosphere, 2016
Photolysis of glyoxal (CHOCHO) and other volatile organic compounds (VOC) in the presence of NOx results in tropospheric ozone and secondary organic pollutants formation. Glyoxal, with a relatively short lifetime, plays an important role in VOC formation
Muhammad Fahim Khokhar, Syeda Ifraw Naveed, Junaid Khayyam Butt, Zain Abbas   +3 more
doaj   +1 more source

Development of an incoherent broadband cavity-enhanced absorption spectrometer for measurements of ambient glyoxal and NO₂ in a polluted urban environment [PDF]

Atmospheric Measurement Techniques, 2019
We report the development of an instrument for simultaneous fast measurements of glyoxal (CHOCHO) and NO2 based on incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) in the 438–465 nm wavelength region.
S. Liang, S. Liang, M. Qin, P. Xie, P. Xie, P. Xie, J. Duan, W. Fang, Y. He, J. Xu, J. Liu, X. Li, K. Tang, K. Tang, F. Meng, F. Meng, K. Ye, K. Ye, J. Liu, J. Liu, J. Liu, W. Liu, W. Liu, W. Liu   +23 more
doaj   +1 more source

The glyoxal budget and its contribution to organic aerosol for Los Angeles, California, during CalNex 2010 [PDF]

, 2011
Recent laboratory and field studies have indicated that glyoxal is a potentially large contributor to secondary organic aerosol mass. We present in situ glyoxal measurements acquired with a recently developed, high sensitivity spectroscopic instrument ...
Angevine, WM, Atlas, EL, Blake, DR, Bon, DM, Brown, SS, Cubison, MJ, De Gouw, JA, Dusanter, S, Flynn, J, Gilman, JB, Graus, M, Griffith, S, Grossberg, N, Hayes, PL, Jimenez, JL, Kuster, WC, Lefer, BL, Pollack, IB, Ryerson, TB, Stark, H, Stevens, PS, Trainer, MK, Washenfelder, RA, Young, CJ   +23 more
core   +2 more sources

MAX-DOAS detection of glyoxal during ICARTT 2004 [PDF]

Atmospheric Chemistry and Physics, 2007
The direct detection of glyoxal (CHOCHO), the smallest α-dicarbonyl, in the open atmosphere by active differential optical absorption spectroscopy (DOAS) has recently been demonstrated (Volkamer et al., 2005a) and triggered the very recent ...
R. Sinreich, R. Volkamer, R. Volkamer, F. Filsinger, F. Filsinger, U. Frieß, C. Kern, U. Platt, O. Sebastián, T. Wagner, T. Wagner   +10 more
doaj  

Atmospheric Impacts of COVID-19 on NO_x and VOC Levels over China Based on TROPOMI and IASI Satellite Data and Modeling

Atmosphere, 2021
China was the first country to undergo large-scale lockdowns in response to the pandemic in early 2020 and a progressive return to normalization after April 2020.
Trissevgeni Stavrakou, Jean-François Müller, Maite Bauwens, Thierno Doumbia, Nellie Elguindi, Sabine Darras, Claire Granier, Isabelle De Smedt, Christophe Lerot, Michel Van Roozendael, Bruno Franco, Lieven Clarisse, Cathy Clerbaux, Pierre-François Coheur, Yiming Liu, Tao Wang, Xiaoqin Shi, Benjamin Gaubert, Simone Tilmes, Guy Brasseur   +19 more
doaj   +1 more source