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Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG
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Analysis of Black Carbon Data for Ireland - Michael Geever, NUIG

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Presentation from EPA Transboundary Research Workshop, Galway, 8th and 9th September 2010.

Presentation from EPA Transboundary Research Workshop, Galway, 8th and 9th September 2010.

Published in: Technology
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  • 1. Analysis of Black Carbon Data for Ireland
    Michael Geever, NUI, Galway
  • 2. What is Black Carbon?
    Light-absorbing carbonaceous particle produced by incomplete combustion of various fuels
    Light-absorbing subset of particulate matter
    Soot
    Elemental Carbon
    Refractive Carbon
    Black Carbon
    Brown Carbon
  • 3. Measurements
    Range over orders of magnitude
    Measurements difficult
    Few instruments good over whole range – usually tuned to particular range: urban or background
    Techniques differ – can give different results
    Calibration difficult
    Instrument artefacts complicate analysis and comparison
    Good qualitative measurement
  • 4. Aethalometer – Malin Head
  • 5. Aethalometer
  • 6. Mace Head Malin Head monthly averages
  • 7. YEAR 2002: % BC below 75 ngm-3 for whole year 59%
  • 8.
  • 9. YEAR 2003: % BC below 75 ngm-3 for whole year 62%
  • 10.
  • 11. YEAR 2005 : BLACK CARBON FREQUENCY BELOW 50 NG M-3
    Average year: 53% of times BC is below 50ng/m3
  • 12. 2005
  • 13. YEAR 2006 : BLACK CARBON FREQUENCY BELOW 50 NG M-3
    During August 85% of the time BC is below 50ng m-3, 50% below 15ng/m3!
  • 14. 2006
  • 15. YEAR 2007 : BLACK CARBON FREQUENCY BELOW 50 NG M-3
    (no october for 2007)
    January really cleaned, again August the cleanest of summer months
    (75% cleaner than 30ng m-3 for August)
  • 16. 2007
  • 17. Average frequency of occurrence
  • 18. Average Frequency by month

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