Long-term trend of deposition of atmospheric sulfur and nitrogen compounds in Hungary

Moring, Andrea; Horvath, Laszlo. 2014 Long-term trend of deposition of atmospheric sulfur and nitrogen compounds in Hungary. Idojaras - Quarterly Journal of the Hungarian Meteorological Service, 118 (2). 167-191.

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Acidification caused serious environmental problems over Europe in the 70’s and 80’s. The signs of the phenomenon were observed also in Hungary. However, a comprehensive assessment of acidic deposition on long term has not been carried out yet. Therefore, the purpose of this study is to assess the degree of this process and to investigate its long-term change in Hungary based on deposition time series for oxidized sulfur, oxidized nitrogen, and reduced nitrogen compounds. To achieve our goal, we used existing results of atmospheric chemistry transport models, and precipitation chemistry as well as background air pollution measurements at the Hungarian K-puszta site. Comparing the results with national emission datasets, we also made an attempt to interpret the changes in depositions. According to our time series (oxidized sulfur: 1880–2011, oxidized nitrogen: 1982–2012, reduced nitrogen: 1981–2012), the effect of acidification was most likely to intensify before 1980. Since then, the phenomenon presumably has been weakening gradually. In the case of oxidized sulfur and nitrogen compounds, transboundary transport has to be considered while comparing them to depositions. On the other hand, the impact of Hungarian industrial recession as well as the improvement of emission abatement techniques and national emission controlling measures can be observed not just on the emissions, but depositions as well. Moreover, we found that the atmospheric concentration and subsequent deposition of ammonia is strongly affected by the atmospheric concentration of sulfur dioxide, which highlights the need for further refinement of the estimation method for yearly dry deposition of ammonia.

Item Type: Publication - Article
UKCEH and CEH Sections/Science Areas: Dise
ISSN: 0324-6329
Additional Information. Not used in RCUK Gateway to Research.: Freely available from journal website - Official URL link provides full text
Additional Keywords: acidic deposition, long-term, oxidized nitrogen, oxidized sulfur, reduced nitrogen, ammonia, atmospheric concentration, emission, emission reduction
NORA Subject Terms: Ecology and Environment
Atmospheric Sciences
Related URLs:
Date made live: 28 Oct 2014 13:08 +0 (UTC)

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