搜索结果: 1-15 共查到“大气物理学 formaldehyde”相关记录15条 . 查询时间(0.062 秒)
Reactive processing of formaldehyde and acetaldehyde in aqueous aerosol mimics: Surface tension depression and secondary organic products
Surface tension depression and secondary organic products aqueous aerosol mimics
2011/9/2
The reactive uptake of carbonyl-containing volatile organic compounds (cVOCs) by aqueous atmospheric aerosols is a likely source of particulate organic material. The aque ous-phase secondary organic p...
Source identification and budget analysis on elevated levels of formaldehyde within the ship plumes: a ship-plume photochemical/dynamic model analysis
Source identification budget analysis the ship plumes a ship-plume photochemical/dynamic model analysis
2010/12/28
Elevated levels of formaldehyde (HCHO) along the ship corridors have been observed by satellite sensors, such as ESA/ERS-2 GOME (Global Ozone Monitoring Experiment), and were also simulated by global ...
Estimating European volatile organic compound emissions using satellite observations of formaldehyde from the Ozone Monitoring Instrument
European volatile organic compound satellite observations the Ozone Monitoring Instrument
2010/12/20
Emission of non-methane Volatile Organic Compounds (VOCs) to the atmosphere stems from biogenic and human activities, and their estimation is difficult because of the many and not fully understood pro...
GOME-2 observations of oxygenated VOCs: what can we learn from the ratio glyoxal to formaldehyde on a global scale?
GOME-2 oxygenated VOCs the ratio glyoxal a global scale
2010/11/3
Collocated data sets of glyoxal (CHO.CHO) and formaldehyde (HCHO) were retrieved for the first time from measurements of the Global Ozone Monitoring Experiment-2 (GOME-2) during the first two years of...
Satellite measurements of formaldehyde linked to shipping emissions
Satellite measurements formaldehyde shipping emissions
2009/11/19
International shipping is recognized as a pollution source of growing importance, in particular in the remote marine boundary layer. Nitrogen dioxide originating from ship emissions has previously bee...
Global upper-tropospheric formaldehyde: seasonal cycles observed by the ACE-FTS satellite instrument
Global upper-tropospheric formaldehyde seasonal cycles ACE-FTS satellite
2009/6/22
Seasonally-resolved upper tropospheric profiles of formaldehyde (HCHO) observed by the ACE Fourier transform spectrometer (ACE-FTS) on a near-global scale are presented for the time period from March ...
Impact of primary formaldehyde on air pollution in the Mexico City Metropolitan Area
primary formaldehyde air pollution Mexico City Metropolitan Area
2009/5/7
Formaldehyde (HCHO) is a radical source that plays an important role in urban atmospheric chemistry and ozone formation. The Mexico City Metropolitan Area (MCMA) is characterized by high anthropogenic...
Evaluating the performance of pyrogenic and biogenic emission inventories against one decade of space-based formaldehyde columns
pyrogenic and biogenic emission inventories space-based formaldehyde columns
2009/3/13
A new one-decade (1997–2006) dataset of formaldehyde (HCHO) columns retrieved from GOME and SCIAMACHY is compared with HCHO columns simulated by an updated version of the IMAGES global chemical transp...
Separation of emitted and photochemical formaldehyde in Mexico City using a statistical analysis and a new pair of gas-phase tracers
emitted and photochemical formaldehyde Mexico City gas-phase tracers
2009/1/15
Photochemical pollution control strategies require an understanding of photochemical oxidation precursors, making it important to distinguish between primary and secondary sources of HCHO. Estimates f...
Ambient formaldehyde measurements made at a remote marine boundary layer site during the NAMBLEX campaign – a comparison of data from chromatographic and modified Hantzsch techniques
Ambient formaldehyde measurements remote marine boundary layer NAMBLEX campaign chromatographic and modified Hantzsch techniques
2009/1/12
Ambient formaldehyde concentrations are reported from the North Atlantic Marine Boundary Layer Experiment (NAMBLEX) campaign at Mace Head on the west coast of Eire during August 2002. The results from...
A fate for organic acids, formaldehyde and methanol in cloud water: their biotransformation by micro-organisms
organic acids formaldehyde cloud water biotransformation micro-organisms
2008/12/16
The interactions between microbial and chemical contents of cloud water were investigated. First, we observe that the bulk cloud water solution provides a substantial environment where bacteria can de...
Technical Note: Intercomparison of formaldehyde measurements at the atmosphere simulation chamber SAPHIR
formaldehyde atmosphere simulation SAPHIR
2008/11/5
The atmosphere simulation chamber SAPHIR at the Research Centre Jülich was used to test the suitability of state-of-the-art analytical instruments for the measurement of gas-phase formaldehyde (HCHO) ...
Hydrogen isotope fractionation in the photolysis of formaldehyde
Hydrogen isotope fractionation in the photolysis of formaldehyde
2008/10/31
Experiments investigating the isotopic fractionation in the formation of H2 by the photolysis of CH2O under tropospheric conditions are reported and discussed. The deuterium (D) depletion in the H2 pr...
Retrieval of global upper tropospheric and stratospheric formaldehyde (H2CO) distributions from high-resolution MIPAS-Envisat spectra
tropospheric stratospheric formaldehyde distributions high-resolution MIPAS-Envisat
2008/10/28
The Fourier transform spectrometer MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) on Envisat measures infrared emission of the Earth's atmosphere in a limb viewing mode.
Technical Note: Determination of formaldehyde mixing ratios in air with PTR-MS: laboratory experiments and field measurements
Determination formaldehyde mixing ratios air PTR-MS laboratory experiments field measurements
2008/10/27
Formaldehyde (HCHO), the most abundant carbonyl compound in the atmosphere, is generated as an intermediate product in the oxidation of nonmethane hydrocarbons. Proton transfer reaction mass spectrome...