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Transboundary Particulate Matter: Natural and Anthropogenic Sources - Darius Ceburnis, NUIG
 

Transboundary Particulate Matter: Natural and Anthropogenic Sources - Darius Ceburnis, 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.

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  • North Sea / Irish Sea (NS/IS). Arriving from northern sectors after traversing the North Sea and / or Irish Sea with additional input from coastal regions of Ireland and the UK. • Northern European (NE). Polluted air masses originating over northern Europe, Scandinavia, Russia or Baltic regions, usually traversing the UK. • Southern European (SE). Polluted air masses originating from southern European and North African sectors. • Mixed (M). Difficult to assign category; mixed maritime / continental type. • South Atlantic (SA). Clean maritime air masses with no continental contact for at least 5 days before reaching the Irish coast. • Mid-Atlantic (MA). Normally fast moving air masses, could originate from eastern USA. • North Atlantic (NA). Clean air masses from North Atlantic or polar regions, with no continental contact for at least 5 days.

Transboundary Particulate Matter: Natural and Anthropogenic Sources - Darius Ceburnis, NUIG Transboundary Particulate Matter: Natural and Anthropogenic Sources - Darius Ceburnis, NUIG Presentation Transcript

  • TXB Particulate Matter: Natural & Anthropogenic Sources Darius Ceburnis Transboundary Air Pollution – EPA Research Workshop 08 September 2010
  • Why Particulate Matter important?
    • Visibility (more applicable to severely affected regions)
    • Public health (studies demonstrate direct influence)
    • Climate impacts (probably least understood)
    • International regulations require comprehensive actions
    • Effects depend on number or volume/mass distribution
    • PM network has been established in Ireland over the last decade, with significant attention to scientific issues
  • Nature & origin of PM10 and smaller PM in urban air
  • Source contribution to PM10 composition in urban and rural air Yin et al., 2005
  • Size-segregated composition Ceburnis et al., 2006
  • Lagrangian study of OC/EC in Atlantic air masses (west-east transition) Ceburnis et al., 2006
  • Seasonality of inorganic ions in TSP (2003) observation period 2001-2006
  • PM2.5 vs PM2.5-10 inorganic composition started in 2007 and continuing
  • Variation of yearly concentration averages Summary of annual averages of chemical species concentrations in μ g/m 3 at Mace Head during the period of 2007-2009. 1.678 0.473 0.069 0.086 0.364 2.033 3.412 PM2.5-PM10 2009 1.769 0.921 0.198 0.099 0.374 3.792 6.708 PM2.5-PM10 2008 1.702 1.060 0.122 0.092 0.530 4.575 7.788 PM2.5-PM10 2007 1.506 0.120 0.591 0.314 0.507 0.491 0.740 PM2.5 2009 1.596 0.215 0.752 0.433 0.843 0.869 1.386 PM2.5 2008 1.515 0.248 0.933 0.456 0.557 0.997 1.510 PM2.5 2007 Cl/Na ssSO 4 nssSO 4 NH 4 NO 3 Na Cl PM component/year
  • Gradient method – deposition rate of trans-continental sulphate Ceburnis et al., 2008
  • Carbon isotope method ( 12 C, 13 C, 4 C) -  13 C -  14 C marine fossil Terrestrial non-fossil
  • 13 C analysis - distinctive differences
  • Dual isotope method - quantitative source apportionment ~ 0.3  g/m 3 1.0-1.5  g/m 3
  • School Institute Name to go here Thank you!
  •