搜索结果: 1-15 共查到“大气科学 organic carbon”相关记录22条 . 查询时间(0.171 秒)
Inferring absorbing organic carbon content from AERONET data
organic carbon content AERONET data
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
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
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...
Characterization of Atmospheric Organic Carbon and Element Carbon of PM2.5 and PM10 at Tianjin, China
PM2.5 PM10 Organic carbon (OC) Elemental carbon (EC) Tianjin.
2016/3/29
Concentrations of organic carbon (OC) and elemental carbon (EC) in atmospheric particles were measured in Tianjin
during January, April, July and October in 2008. The 24-h PM2.5 (particles with aerod...
Light absorption by organic carbon from wood combustion
Light absorption organic carbon wood combustion
2010/2/21
Carbonaceous aerosols affect the radiative balance of the Earth by absorbing and scattering light. While black carbon (BC) is highly absorbing, some organic carbon (OC) also has significant absorption...
Primary and secondary organic carbon downwind of Mexico City
organic carbon downwind Mexico City
2009/9/23
In order to study particulate matter transport and transformation in the Megacity environment, fine particulate carbon was measured simultaneously at two supersites, suburban T1 and rural T2, downwind...
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
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 ...
Fossil and non-fossil sources of organic carbon（OC）and elemental carbon（EC）in Göteborg, Sweden
Fossil and non-fossil sources organic carbon OC elemental carbon EC Gö teborg
2009/3/13
Particulate matter was collected at an urban site in Göteborg (Sweden) in February/March 2005 and in June/July 2006. Additional samples were collected at a rural site for the winter period. Total...
Evaluation of the global oceanic isoprene source and its impacts on marine organic carbon aerosol
global oceanic isoprene source marine organic carbon aerosol
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...
Stock,Dynamics of Soil Organic Carbon of China and the Role in Climate Change Mitigation
China soil organic carbon stock climate change mitigation C sequestration croplands
2010/2/21
This paper synthesizes the studies on China’s soil organic carbon (SOC) stock and the dynamics, especially of croplands and discusses the significance in climate change mitigation of the state. The st...
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
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
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
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...
Variability of organic and elemental carbon, water soluble organic carbon, and isotopes in Hong Kong
organic and elemental carbon water soluble organic carbon isotopes Hong Kong
2009/1/15
To determine the levels and variations of carbonaceous aerosol in Hong Kong, PM2.5 and PM10 samples were collected by high volume (Hi-vol) samplers at three monitoring stations (representing middle-sc...
Strong spectral dependence of light absorption by organic carbon particles formed by propane combustion
Strong spectral dependence light absorption organic carbon particles propane combustion
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...