A national emission inventory of Particulate Matter (TSP, PM10, PM2,5)

Wilfried Winiwarter

Publikation: Beitrag in Buch oder TagungsbandBuchkapitel

Abstract

Emissions of total suspended particles (TSP) have been assessed from all anthropogenic sources for Austria. National statistics have been combined with emission factors, if possible from national origin, to yield annual emissions for three years (1990, 1995, 1999). Both combustion emissions and fugitive emissions were assessed. Emissions of the smaller fractions of particulate matter (PM10, PM2,5) were derived from TSP emissions and size distributions available in the literature for specific source groups or processes. In some cases an appropriate size distribution had to be estimated. In general, reasonable knowledge exists on emissions from combustion sources. Especially industry equipped with efficient PM abatement devices is able and willing to share information on their emissions. But also for domestic heating and car exhaust emission factors exist, even if in the latter case particles are also formed in or immediately after the exhaust pipe, causing problems in defining the appropriate transfer point and in assessing the dependence of emissions on environmental conditions. A totally different situation exists for fugitive emissions. Industry knows very little about their emissions, little information is available for agriculture or construction work. A well documented, but probably unreliable approach is available for suspension (or possibly just road abrasion) of particles from road traffic, published by the U.S. EPA. Using this approach, Austrian emissions amount to 77,000 t PM10 in 1995, 32,000 t are attributed to road resuspension alone. This number is probably an overestimation and will have to be revised. At this time it is however still supported by the only large set of measurements available. The overall uncertainty of the PM emission inventroy is determined almost exclusively by the uncertainty of resuspension emissions. Additional uncertainty introduced by estimating the fractions PM10 or PM2,5 within TSP hardly contributes to overall uncertainty.
OriginalspracheEnglisch
TitelIn: Emissions of air pollutants. Measurements, calculations and uncertainties. Hersg.: Rainer Friedrich; Reis Stefan.
Seiten97-103
Seitenumfang7
PublikationsstatusVeröffentlicht - 2004

Research Field

  • Nicht definiert

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