DOI: 10.1016/j.atmosenv.2017.05.031
Scopus记录号: 2-s2.0-85019998239
论文题名: Technical note: Aerosol light absorption measurements with a carbon analyser – Calibration and precision estimates
作者: Ammerlaan B ; A ; J ; , Holzinger R ; , Jedynska A ; D ; , Henzing J ; S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 164 起始页码: 1
结束页码: 7
语种: 英语
英文关键词: Aerosol light absorption
; Black carbon
; Elemental carbon
; Mass absorption efficiency
Scopus关键词: Aerosols
; Calibration
; Efficiency
; Electromagnetic wave absorption
; Light absorption
; Light transmission
; Optical data processing
; Optical variables measurement
; Particulate emissions
; Aerosol light absorption
; Black carbon
; Elemental carbon
; Elemental carbon concentration
; Mass absorption
; Simultaneous determinations
; Simultaneous measurement
; Transmission measurements
; Organic carbon
; black carbon
; absorbance
; absorption coefficient
; aerosol
; black carbon
; calibration
; combustion
; data set
; elemental carbon
; equipment
; light
; light intensity
; observatory
; organic carbon
; precision
; accuracy
; aerosol
; Article
; calibration
; controlled study
; filter
; light absorption
; mass
; measurement
; Netherlands
; photometer
; priority journal
; pyrolysis
; Netherlands
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Equivalent Black Carbon (EBC) and Elemental Carbon (EC) are different mass metrics to quantify the amount of combustion aerosol. Both metrics have their own measurement technique. In state-of-the-art carbon analysers, optical measurements are used to correct for organic carbon that is not evolving because of pyrolysis. These optical measurements are sometimes used to apply the technique of absorption photometers. Here, we use the transmission measurements of our carbon analyser for simultaneous determination of the elemental carbon concentration and the absorption coefficient. We use MAAP data from the CESAR observatory, the Netherlands, to correct for aerosol-filter interactions by linking the attenuation coefficient from the carbon analyser to the absorption coefficient measured by the MAAP. Application of the calibration to an independent data set of MAAP and OC/EC observations for the same location shows that the calibration is applicable to other observation periods. Because of simultaneous measurements of light absorption properties of the aerosol and elemental carbon, variation in the mass absorption efficiency (MAE) can be studied. We further show that the absorption coefficients and MAE in this set-up are determined within a precision of 10% and 12%, respectively. The precisions could be improved to 4% and 8% when the light transmission signal in the carbon analyser is very stable. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82561
Appears in Collections: 气候变化事实与影响
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作者单位: Netherlands Institute for Applied Scientific Research (TNO), Utrecht, Netherlands; Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht University, Utrecht, Netherlands
Recommended Citation:
Ammerlaan B,A,J,et al. Technical note: Aerosol light absorption measurements with a carbon analyser – Calibration and precision estimates[J]. Atmospheric Environment,2017-01-01,164