Critcal levels for ammonia

Cape, John Neil ORCID: https://orcid.org/0000-0002-5538-588X; van der Eerden, Ludger; Fangmeier, Andreas; Ayres, John; Bareham, Simon; Bobbink, Roland; Branquinho, Cristina; Crittenden, Peter; Cruz, Cristina; Dias, Teresa; Leith, Ian D.; Martins-Loucao, Maria Amelia; Pitcairn, Carole; Sheppard, Lucy; Spranger, Till; Sutton, Mark ORCID: https://orcid.org/0000-0002-6263-6341; van Dijk, Netty; Wolseley, Pat. 2009 Critcal levels for ammonia. In: Sutton, Mark A. ORCID: https://orcid.org/0000-0002-6263-6341; Reis, Stefan ORCID: https://orcid.org/0000-0003-2428-8320; Baker, Samantha M.H., (eds.) Atmospheric ammonia: Detecting emission changes and environmental impacts. Results of an Expert Workshop under the Convention on Long-range Transboundary Air Pollution. Springer, 375-382.