Results 1 to 10 of about 122 (63)

Field observational constraints on the controllers in glyoxal (CHOCHO) reactive uptake to aerosol [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Glyoxal (CHOCHO), the simplest dicarbonyl in the troposphere, is a potential precursor for secondary organic aerosol (SOA) and brown carbon (BrC) affecting air quality and climate.
Armin Wisthaler   +2 more
exaly   +2 more sources

Modeling of HCHO and CHOCHO at a semi-rural site in southern China during the PRIDE-PRD2006 campaign [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
HCHO and CHOCHO are important trace gases in the atmosphere, serving as tracers of VOC oxidations. In the past decade, high concentrations of HCHO and CHOCHO have been observed for the Pearl River Delta (PRD) region in southern China.
Theo Brauers   +2 more
exaly   +2 more sources

Ground-Based MAX-DOAS Observations of CHOCHO and HCHO in Beijing and Baoding, China

open access: yesRemote Sensing, 2019
Glyoxal (CHOCHO) and formaldehyde (HCHO) trace gases were successfully retrieved from a multi-axis differential optical absorption spectroscopy (MAX-DOAS) system in Beijing (39.95°N, 116.32°E) and Baoding (39.15°N, 115.40°E), China.
Osama Sandhu   +2 more
exaly   +3 more sources

Unexpected long-range transport of glyoxal and formaldehyde observed from the Copernicus Sentinel-5 Precursor satellite during the 2018 Canadian wildfires [PDF]

open access: yesAtmospheric Chemistry and Physics, 2020
Glyoxal (CHOCHO) and formaldehyde (HCHO) are intermediate products in the tropospheric oxidation of the majority of volatile organic compounds (VOCs). CHOCHO is also a precursor of secondary organic aerosol (SOA) in the atmosphere.
L. M. A. Alvarado   +9 more
doaj   +1 more source

Glyoxal yield from isoprene oxidation and relation to formaldehyde: chemical mechanism, constraints from SENEX aircraft observations, and interpretation of OMI satellite data [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Glyoxal (CHOCHO) is produced in the atmosphere by the oxidation of volatile organic compounds (VOCs). Like formaldehyde (HCHO), another VOC oxidation product, it is measurable from space by solar backscatter.
C. Chan Miller   +24 more
doaj   +1 more source

Ship-based detection of glyoxal over the remote tropical Pacific Ocean [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
We present the first detection of glyoxal (CHOCHO) over the remote tropical Pacific Ocean in the Marine Boundary Layer (MBL). The measurements were conducted by means of the University of Colorado Ship Multi-Axis Differential Optical Absorption ...
R. Sinreich   +3 more
doaj   +1 more source

An improved glyoxal retrieval from OMI measurements [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
Satellite observations from the SCIAMACHY, GOME-2 and OMI spectrometers have been used to retrieve atmospheric columns of glyoxal (CHOCHO) with the DOAS method.
L. M. A. Alvarado   +6 more
doaj   +1 more source

Hotspot of glyoxal over the Pearl River delta seen from the OMI satellite instrument: implications for emissions of aromatic hydrocarbons [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
The Pearl River delta (PRD) is a densely populated hub of industrial activity located in southern China. OMI (Ozone Monitoring Instrument) satellite observations reveal a large hotspot of glyoxal (CHOCHO) over the PRD that is almost twice as large as ...
C. Chan Miller   +4 more
doaj   +1 more source

CARACTERIZACIÓN FISICOQUÍMICA DE FRÉJOL CANARIO (Vigna unguiculata) Y CHOCHO GUARANGUITO (Lupinus mutabilis) Y SU INCIDENCIA EN LA FUNCIONALIDAD DE HARINAS

open access: yesRevista Bases de la Ciencia, 2023
Las leguminosas tienen un gran aporte nutricional y sus propiedades funcionales, entre las más importante para la alimentación destacan el fréjol canario (V. unguiculata) y el chocho guaranguito (L. mutabilis).
Damaris Dalia Sánchez Aguilera   +5 more
doaj   +1 more source

Problems with and Improvement of HCHO/NO2 for Diagnosing Ozone Sensitivity—A Case in Beijing

open access: yesRemote Sensing, 2023
Rfn (formaldehyde/nitrogen dioxide) is a common indicator based on satellite observations used to classify ozone formation sensitivity. However, it may underestimate anthropogenic volatile organic compounds (VOCs) in heavily polluted cities when only ...
Yanyu Kang   +8 more
doaj   +1 more source

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