Modelling the spatial distribution of ammonia emissions from seabirds in the UK

Environmental Pollution
L J WilsonSarah Wanless

Abstract

Knowledge of the sources and distribution of ammonia (NH3) emissions underpins our understanding of the nitrogen budget. Research has focused on quantifying NH3 emissions from anthropogenic sources, whilst those from natural sources have received little attention internationally. Seabirds excrete large quantities of nitrogen, making seabird colonies a major natural source of NH3. Ammonia emissions from each UK seabird species were estimated and combined with population distribution data to model their spatial distribution. Total NH3 emissions from UK seabirds were estimated at 2.7 kt per year. Seabird emissions are concentrated in remote parts of the UK where anthropogenic emissions are small, so that seabirds often represent the main source of NH3 emissions in these areas. Seabird NH3 emissions were found to have increased by 34% since the 1970s. This corresponds to population changes which may be influenced by human activities, showing that even this natural source can be anthropogenically modified.

References

Jan 1, 1994·Environmental Pollution·D S Lee, G J Dollard
Jan 1, 1994·Environmental Pollution·A FangmeierH J Jäger

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Citations

Feb 11, 2010·Journal of Environmental Monitoring : JEM·Susanne SchmidtJochen F Mueller
Jan 25, 2018·Nature Communications·Xosé Luis OteroMiguel Angel Huerta-Diaz
Dec 2, 2020·The Science of the Total Environment·Saúl De La Peña-Lastra

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