搜索结果: 1-12 共查到“大气化学 organic carbon”相关记录12条 . 查询时间(0.137 秒)
Inferring absorbing organic carbon content from AERONET data
organic carbon content AERONET data
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2011/1/19
Black carbon, light-absorbing organic carbon (often called "brown carbon") and mineral dust are the major light-absorbing aerosols. Currently the sources and formation of brown carbon aerosol in parti...
The effect of metal salts on quantification of elemental and organic carbon in diesel exhaust particles using thermal-optical evolved gas analysis
metal salts elemental and organic carbon diesel exhaust particles thermal-optical evolved gas analysis
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2010/12/20
Thermal-optical evolved gas analysis (TOEGA) is a conventional method for classifying carbonaceous aerosols as organic carbon (OC) and elemental carbon (EC). Its main source of uncertainty arises from...
Quantification of PM2.5 organic carbon sampling artifacts in US networks
PM2.5 organic carbon sampling artifacts US networks
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2010/8/13
Field blanks (bQF) and backup filters (quartz-fiber behind quartz-fiber filter; QBQ) have been adopted by US long-term air quality monitoring networks to estimate PM2.5 organic carbon (OC) sampling ar...
Emission and chemistry of organic carbon in the gas and aerosol phase at a sub-urban site near Mexico City in March 2006 during the MILAGRO study
organic carbon gas and aerosol phase Mexico City MILAGRO study
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2009/6/2
Volatile organic compounds (VOCs) and carbonaceous aerosol were measured at a sub-urban site near Mexico City in March of 2006 during the MILAGRO study (Megacity Initiative: Local and Global Research ...
Evaluation of the global oceanic isoprene source and its impacts on marine organic carbon aerosol
global oceanic isoprene source marine organic carbon aerosol
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2009/3/13
We have combined the first satellite maps of the global distribution of phytoplankton functional type and new measurements of phytoplankton-specific isoprene productivities, with available remote mari...
Seasonal variations of the water soluble organic carbon mass fraction of aerosol in two valleys of the French Alps
water soluble organic carbon mass fraction aerosol valleys of the French Alp
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2009/2/18
Concentrations of Water Soluble Organic Carbon (WSOC) and WSOC fraction to Organic Carbon (OC) were measured at two urban sites in valleys of the French Alps during a period of two and a half years. C...
Modelling the evolution of organic carbon during its gas-phase tropospheric oxidation: development of an explicit model based on a self generating approach
organic carbon gas-phase tropospheric oxidation explicit model self generating approach
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2009/2/17
Organic compounds emitted in the atmosphere are oxidized in complex reaction sequences that produce a myriad of intermediates. Although the cumulative importance of these organic intermediates is wide...
Combustion characteristics of water-insoluble elemental and organic carbon in size selected ambient aerosol particles
Combustion characteristics carbon ambient aerosol particles
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2009/2/12
Combustion of elemental carbon (EC) and organic carbon (OC) contained in ambient aerosol matter was explored using scanning electron microscopy (SEM) in combination with energy dispersive X-ray analys...
Strong spectral dependence of light absorption by organic carbon particles formed by propane combustion
Strong spectral dependence light absorption organic carbon particles propane combustion
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2009/1/13
We have measured the extinction and absorption cross sections of carbon particles emitted by a propane diffusion flame both in an aerosol chamber and on size-segregated samples deposited on optical wi...
Estimation of the mass absorption cross section of the organic carbon component of aerosols in the Mexico City Metropolitan Area
organic carbon aerosols Mexico City
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2008/11/26
Data taken from the MCMA-2003 and the 2006 MILAGRO field campaigns are used to examine the absorption of solar radiation by the organic component of aerosols. Using irradiance data from a Multi-Filter...
Sources of organic carbon in fine particulate matter in northern European urban air
organic carbon fine particulate matter northern European urban air
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2008/11/24
major fraction of fine particle matter consists of organic carbon (OC) but its origin is still inadequately known. In this study the sources of OC were investigated in the northern European urban env...
Size distributions, sources and source areas of water-soluble organic carbon in urban background air
water-soluble organic carbon urban background air
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2008/11/20
This paper represents the results of one year long measurement period of the size distributions of water-soluble organic carbon (WSOC), inorganic ions and gravimetric mass of particulate matter. Measu...