Titlebook: Atmospheric Ammonia; Detecting emission c Mark A. Sutton,Stefan Reis,Samantha M.H. Baker Book 2009 Springer Science+Business Media B.V. 200

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Long-Term Record (1981—2005) of Ammonia and Ammonium Concentrations at K-Puszta Hungary and the Effelel decrease of calculated ammonia emission (Fig. 12.1). In an earlier study (Horvath and Sutton 1998) long-term trend of background ammonia/ammonium concentrations were analysed between 1981 and 1995 at Hungarian K-puszta station (longitude 19′33″, latitude 46′58″, h=125 m a.s.l.). Despite the redu

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Ammonia Deposition Near Hot Spots: Processes, Models and Monitoring Methodshe emitted NH. may be recaptured by the surrounding vegetation, hence reducing the contribution of these hot spots to long-range transport of NHx. This paper reviews the processes leading to local recapture of NH. near hot spots, as well as existing models and monitoring methods. The existing models

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Standardised Grasses as Biomonitors of Ammonia Pollution Around Agricultural Point Sources. Grass species have been used extensively in a number of biomonitoring studies (Sant‘ Anna et al. 2004). These standardised grasses can be used as passive biomonitors, but are more effectively used as active bioaccumulators of a range of gaseous and particulate pollutants (Scholl 1971). The advanta

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Soluble Ammonium in Plants as a Bioindicator for Atmospheric Nitrogen Deposition: Refinement and Tesns and deposition. The interest in these parameters originates from the analysis of plant carbon and nitrogen dynamics in ecosystem models in relation to the potential for plants to absorb or emit ammonia from the atmosphere, as regulated by the ammonia ‘compensation point’ (Sutton et al. 2004). The

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Spatial Planning as a Complementary Tool to Abate the Effects of Atmospheric Ammonia Deposition at ttcairn et al. 1998, 2003). As a consequence there is a high spatial variability in N deposition and its ecological effects in agricultural landscapes (e.g. Dragosits et al. 2002, 2005, 2006), in addition to differences in sensitivity to additional nitrogen between habitat types (e.g. Fangmeier et al

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Modelling of the Atmospheric Transport and Deposition of Ammonia at a National and Regional Scale. Firstly, the paper deals with the parameterizations of the transport and removal processes of ammonia used in modeling. Subsequently, an overview of the models currently in use describing the ammonia concentration and deposition at a national or (sub-) European scale is given. The emphasis lies on

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