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| Titel |
Particulate emissions from residential wood combustion in Europe – revised estimates and an evaluation |
| VerfasserIn |
H. A. C. Denier van der Gon, R. Bergstrom, C. Fountoukis, C. Johansson, S. N. Pandis, D. Simpson, A. J. H. Visschedijk |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 15, no. 11 ; Nr. 15, no. 11 (2015-06-15), S.6503-6519 |
| Datensatznummer |
250119812
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| Publikation (Nr.) |
 copernicus.org/acp-15-6503-2015.pdf |
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| Zusammenfassung |
Currently residential wood combustion (RWC) is increasing in Europe because
of rising fossil fuel prices but also due to climate change mitigation
policies. However, especially in small-scale applications, RWC may cause
high emissions of particulate matter (PM). Recently we have developed a new
high-resolution (7 × 7 km) anthropogenic carbonaceous aerosol
emission inventory for Europe. The inventory indicated that about half of
the total PM2.5 emission in Europe is carbonaceous aerosol and
identified RWC as the largest organic aerosol source in Europe. The
inventory was partly based on national reported PM emissions. Use of this
organic aerosol inventory as input for two chemical transport models (CTMs),
PMCAMx and EMEP MSC-W, revealed major underestimations of organic aerosol in
winter time, especially for regions dominated by RWC. Interestingly, this
was not universal but appeared to differ by country.
In the present study we constructed a revised bottom-up emission inventory
for RWC accounting for the semivolatile components of the emissions. The
revised RWC emissions are higher than those in the previous inventory by a
factor of 2–3 but with substantial inter-country variation. The new
emission inventory served as input for the CTMs and a substantially improved
agreement between measured and predicted organic aerosol was found. The
revised RWC inventory improves the model-calculated organic aerosol
significantly. Comparisons to Scandinavian source apportionment studies also
indicate substantial improvements in the modelled wood-burning component of
organic aerosol. This suggests that primary organic aerosol emission
inventories need to be revised to include the semivolatile organic aerosol
that is formed almost instantaneously due to dilution and cooling of the flue gas or
exhaust.
Since RWC is a key source of fine PM in Europe, a major revision of the
emission estimates as proposed here is likely to influence source–receptor
matrices and modelled source apportionment. Since usage of biofuels in small
combustion units is a globally significant source, the findings presented
here are also relevant for regions outside of Europe. |
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