Optical determination of black carbon mass concentrations in snow samples: A new analytical method

2019 ◽  
Vol 697 ◽  
pp. 133934 ◽  
Author(s):  
Francisco Cereceda-Balic ◽  
Tamara Gorena ◽  
Camila Soto ◽  
Victor Vidal ◽  
Magín Lapuerta ◽  
...  
Keyword(s):  
Black Carbon ◽  
Analytical Method ◽  
Carbon Mass ◽  
Optical Determination ◽  
Snow Samples ◽  
Mass Concentrations

scholarly journals Long-term observations of tropospheric particle number size distributions and equivalent black carbon mass concentrations in the German Ultrafine Aerosol Network (GUAN)

2016 ◽  
Vol 8 (2) ◽  
pp. 355-382 ◽  
Author(s):  
Wolfram Birmili ◽  
Kay Weinhold ◽  
Fabian Rasch ◽  
André Sonntag ◽  
Jia Sun ◽  
...  
Keyword(s):  
Black Carbon ◽  
Particle Number ◽  
Measurement Data ◽  
Urban Traffic ◽  
Data Evaluation ◽  
Size Distributions ◽  
Evaluation Procedures ◽  
Carbon Mass ◽  
Ultrafine Aerosol ◽  
Mass Concentrations

Abstract. The German Ultrafine Aerosol Network (GUAN) is a cooperative atmospheric observation network, which aims at improving the scientific understanding of aerosol-related effects in the troposphere. The network addresses research questions dedicated to both climate- and health-related effects. GUAN's core activity has been the continuous collection of tropospheric particle number size distributions and black carbon mass concentrations at 17 observation sites in Germany. These sites cover various environmental settings including urban traffic, urban background, rural background, and Alpine mountains. In association with partner projects, GUAN has implemented a high degree of harmonisation of instrumentation, operating procedures, and data evaluation procedures. The quality of the measurement data is assured by laboratory intercomparisons as well as on-site comparisons with reference instruments. This paper describes the measurement sites, instrumentation, quality assurance, and data evaluation procedures in the network as well as the EBAS repository, where the data sets can be obtained (doi:10.5072/guan).

scholarly journals Methods Development for the Optical Determination of the Black Carbon Content of Loess Samples

2015 ◽  
Vol 06 (07) ◽  
pp. 585-603 ◽  
Author(s):  
Yan Mu ◽  
Xiaoguang Qin ◽  
Jiaqi Liu ◽  
Zhiqiang Yin
Keyword(s):  
Carbon Content ◽  
Black Carbon ◽  
Methods Development ◽  
Optical Determination ◽  
Black Carbon Content

scholarly journals Spatial and Temporal Analysis of Organic and Black Carbon Mass Concentrations in Lithuania

Atmosphere ◽  
2015 ◽  
Vol 6 (8) ◽  
pp. 1229-1242 ◽  
Author(s):  
Julija Pauraitė ◽  
Genrik Mordas ◽  
Steigvilė Byčenkienė ◽  
Vidmantas Ulevicius
Keyword(s):  
Black Carbon ◽  
Temporal Analysis ◽  
Spatial And Temporal Analysis ◽  
Carbon Mass ◽  
Mass Concentrations

scholarly journals On measurements of aerosol–gas composition of the atmosphere during two expeditions in 2013 along Northern Sea Route

2015 ◽  
Vol 15 (12) ◽  
pp. 16775-16859
Author(s):  
S. M. Sakerin ◽  
A. A. Bobrikov ◽  
O. A. Bukin ◽  
L. P. Golobokova ◽  
Vas. V. Pol'kin ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Black Carbon ◽  
Far East ◽  
Water Soluble ◽  
The Arctic ◽  
Layer Height ◽  
Boundary Layer Height ◽  
Vertical Fluxes ◽  
Carbon Mass ◽  
Mass Concentrations

Abstract. We presented the results of expedition measurements of the set of physical-chemical characteristics of atmospheric aerosol in water basins of Arctic and Far East seas, performed onboard RV Akademik Fedorov (17 August–22 September 2013) and RV Professor Khljustin (24 July–7 September 2013). The specific features of spatial distribution and time variations of aerosol optical depth (AOD) of the atmosphere in the wavelength range of 0.34–2.14 μm and boundary layer height, aerosol and black carbon mass concentrations, and disperse and chemical composition of aerosol are discussed. Over the Arctic Ocean (on the route of RV Akademik Fedorov) there is a decrease in aerosol and black carbon concentrations in northeastern direction: higher values were observed in the region of Spitsbergen and near the Kola Peninsula; and minimum values were observed at northern margins of the Laptev Sea. Average AOD (0.5 μm) values in this remote region were 0.03; the aerosol and black carbon mass concentrations were 875 and 22 ng m-3, respectively. The spatial distributions of most aerosol characteristics over Far East seas show their latitudinal decrease in the northern direction. On transit of RV Professor Khljustin from Japan to Chukchi Sea, the aerosol number concentration decreased, on the average, from 23.7 to 2.5 cm-3, the black carbon mass concentration decreased from 150 to 50 ng m-3, and AOD decreased from 0.19 to 0.03. We analyzed the variations in the boundary layer height, measured by ship-based lidar: the average value was 520 m, and the maximal value was 1200 m. In latitudinal distribution of the boundary layer height, there is a characteristic minimum at latitude of ∼ 55° N. For water basins of eight seas, we present the chemical compositions of water-soluble aerosol fraction (ions, elements) and small gaseous impurities, as well as estimates of their vertical fluxes. It is shown that substances are mainly (75–89 %) supplied from the atmosphere to the sea surface together with small gaseous impurities. The deposited ions account for from 11 to 24.5 %, and trace elements account for 0.2–0.4 %. The average vertical fluxes of aerosol substance are a factor of 4–7 larger in the Japan Sea than in the water basins of Arctic seas.

scholarly journals Long-term observations of tropospheric particle number size distributions and equivalent black carbon mass concentrations in the German Ultrafine Aerosol Network (GUAN)

2015 ◽  
Vol 8 (2) ◽  
pp. 935-993 ◽  
Author(s):  
W. Birmili ◽  
K. Weinhold ◽  
M. Merkel ◽  
F. Rasch ◽  
A. Sonntag ◽  
...  
Keyword(s):  
Black Carbon ◽  
Particle Number ◽  
Measurement Data ◽  
Urban Traffic ◽  
Data Evaluation ◽  
Size Distributions ◽  
Evaluation Procedures ◽  
Carbon Mass ◽  
Ultrafine Aerosol ◽  
Mass Concentrations

Abstract. The German Ultrafine Aerosol Network (GUAN) is a cooperative atmospheric observation network, which aims at improving the scientific understanding of aerosol-related effects in the troposphere. The network addresses research questions dedicated to both, climate and health related effects. GUAN's core activity has been the continuous collection of tropospheric particle number size distributions and black carbon mass concentrations at seventeen observation sites in Germany. These sites cover various environmental settings including urban traffic, urban background, rural background, and Alpine mountains. In association with partner projects, GUAN has implemented a high degree of harmonisation of instrumentation, operating procedures, and data evaluation procedures. The quality of the measurement data is assured by laboratory intercomparisons as well as on-site comparisons with reference instruments. This paper describes the measurement sites, instrumentation, quality assurance and data evaluation procedures in the network as well as the EBAS repository, where the data sets can be obtained (doi:10.5072/guan).

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