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Investigating the Contribution of Biogenic Emissions to the Formation of Secondary Pollutants in Portugal

  • Oxana TchepelEmail author
  • Joana Ferreira
  • Helena Martins
  • Carlos Silveira
  • Ana Isabel Miranda
  • Carlos Borrego
Conference paper
Part of the Springer Proceedings in Complexity book series (SPCOM)

Abstract

This work aims to quantify the contribution of biogenic emissions to air quality levels of secondary pollutants in distinct areas of a study region taking into account the relevance of different processes, such as transport, deposition, and chemistry. In this sense the air quality model CAMx, with its source apportionment and process analysis tools, has been applied to Portugal, aiming to assess ozone (O3) and secondary organic aerosol (SOA) levels during a summer month for three biogenic emission scenarios, which were defined considering the variability of emission factors. Results for secondary gases and particulate pollutants have been explored in terms of source and process contributions. The quantitative analysis showed that biogenic emissions contribute up to 90 % of SOA predictions. The uncertainty in isoprene emission factors may affect the concentration of SOA by ±30 % in average; however, because the O3 production is NOx limited at the studied areas biogenic emissions scenarios did not affect O3 concentration levels, which varied only ±1 % in average.

Keywords

Emission Factor Source Apportionment Reference Scenario Secondary Organic Aerosol Chemical Transport Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The Portuguese Foundation for Science and Technology (FCT) is acknowledged for the financial support of the project EMOSAT (PTDC/CTE-ATM/103253/2008, FCOMP-01-0124-FEDER-009305), post doc grants of J. Ferreira (SFRH/BPD/40620/2007) and H. Martins (SFRH/BPD/66874/2009).

References

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    Curci G, Beekmann M, Vautard R, Smiatek G, Steinbrecher R, Theloke J, Friedrich R (2009) Modelling study of the impact of isoprene and terpene biogenic emissions on European ozone levels. Atmos Environ 43(7):1444–1455CrossRefGoogle Scholar
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    ENVIRON (2011) User’s guide to the comprehensive air quality model with extensions (CAMx) version 5.40 (September, 2011). http://www.camx.com
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    Oderbolz DC, Aksoyoglu S, Keller J, Barmpadimos I, Steinbrecher R, Skjøth CA, Plab-Dülmer C, Prévôt ASH (2013) A comprehensive emission inventory of biogenic volatile organic compounds in Europe: improved seasonality and land-cover. Atmos Chem Phys 13:1689–1712CrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Oxana Tchepel
    • 1
    Email author
  • Joana Ferreira
    • 2
  • Helena Martins
    • 2
  • Carlos Silveira
    • 2
  • Ana Isabel Miranda
    • 2
  • Carlos Borrego
    • 2
  1. 1.Faculty of Sciences and TechnologyUniversity of CoimbraCoimbraPortugal
  2. 2.CESAM & Department of Environment and PlanningUniversity of AveiroAveiroPortugal

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