stanBC
Published July 16, 2024 | Version v1
Project deliverable Open

Report on traceable reference methods for determining aerosol light absorption coefficients (i.e. at multiple wavelengths) and materials and methods for calibrating filter-based photometers against the reference method(s) in a BC standardisation requirements survey and evidence of its submission to the Convenor of CEN/TC 264 as part of the official application for the initiation of a new CEN Black Carbon WG

Authors/Creators

  • 1. ROR icon National Physical Laboratory
  • 2. ROR icon Finnish Meteorological Institute
  • 3. ROR icon Leibniz Institute for Tropospheric Research
  • 4. National Research Council Canada
  • 5. ROR icon National Centre of Scientific Research "Demokritos"
  • 6. ROR icon FHNW University of Applied Sciences and Arts Northwestern Switzerland
  • 7. Haze Instruments d.o.o.
  • 8. ROR icon University of Nova Gorica
  • 9. ROR icon Jožef Stefan Institute
  • 10. ROR icon Swiss Federal Institute of Metrology
  • 11. University of Applied Sciences and Arts (FHNW)
  • 12. ROR icon Physikalisch-Technische Bundesanstalt

Description

The need for standardization of BC metrics based on optical measurements is becoming more relevant with the recent revision of the Ambient Air Quality Directives proposed by the European Commission. The fact that most of the national air quality monitoring networks use optical instruments for measuring ambient black carbon mass concentrations, puts pressure on the metrology community to provide reference materials for different metrics like aerosol absorption coefficient and BC mass absorption cross-section. Recent developments in traceable in-situ techniques, like extinction-minus-scattering and photo-thermal interferometry, provide a way to establish primary reference methods for BC measurement. The stanBC project, aimed at providing method standardizing BC aerosol metrics, a stakeholder community survey was conducted to assess the opinion of different people involved in BC measurement on the needs towards standardization. There is special concern about the lack of standardized measurement techniques. Most of the participants are of the opinion that a dedicated WG for BC standardization within CEN TC 264 would be convenient.

Files

22NRM02_stanBC_survey_D7.pdf

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