Investigation of PM10 in Austria

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Investigation of PM10 in Austria
Vilnius, 17.10.2005 Wolfgang Spangl
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Limit Values for PM10

• Directive 1999/30/EC, Annex III
• Daily mean value 50 µg/m³, not to be exceeded at
  more than 35 days per year
• Margin of Tolerance 25 µg/m³ 1999, linear
  reduction annually from 2001 to 0 µg/m³ in 2005.
• Annual mean value 40 µg/m³

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PM10 levels in Austria

• Start of measurement in 2001 in most regions
• Exceedance of Limit value throughout Austria.
• Highest pollution in 2003

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Methods for investigation of the origin of PM10
in Austria

• Emission inventories
• Difficulties/uncertainties Resuspension,
  diffuse emissions, secondary particles (sulphate,
  nitrate, ammonium, organic)
• Backward Trajectories (calculated from ECMWF wind
  data)
• Detailed analyses of local meteorolgical
  situations
• Daily, weekly variation, correlation with gaseous
  pollutants
• Chemical Analyses

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Long-Range Transport

• 96-h-Backward-trajectories for typical cases of
  long-range transport of PM10 a) Southern Romania
  and northern Serbia, b) Southern Poland and
  Moravia

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Long-Range Transport

• 96-h-Backward-trajectories for typical cases of
  a) long-range transport from Hungary, b) Regional
  accumulation

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Long-Range Transport

• Statistical analysis Residence time of
  trajectories per pixel weighted with the
  difference from the 3-month-mean of the
  PM10-Concentration in Vienna, Winter 2003

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European PM10-Emissions

• PM10-Emissions
• EMEP-Data-base, 2001

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Origin of PM10 in Vienna
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Origin of PM10 in different Regions in Austria

• Extra-alpine Regions
• Long range transport (mainly from central and
  eastern Europe)
• Regional accumulation (approx 100 200 km)
• Urban and local emissions
• Alpine basins and valleys
• Local and regional accumulation due to
  unfavourable dispersion conditions
• High local emissions (road traffic, wood burning,
  industry)

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Further Information

• Annual Daily Air Quality Reports and on-line data
• Reports about Air Quality in Austria
• can be retrieved from our web-site
• www.umweltbundesamt.at