@article {1495,
	title = {A diagnostic biotic index for assessing acidity in sensitive streams in Britain.},
	journal = {Ecological Indicators},
	volume = {24},
	year = {2013},
	pages = {562-572},
	author = {Murphy, J.F. and Davy-Bowker, J. and McFarland, B. and Ormerod, S.J.}
}
@article {1513,
	title = {Diatom-inference models for acid neutralizing capacity and nitrate based on 41 calibration lakes in the Sierra Nevada, California, USA.},
	journal = {Journal of Paleolimnology},
	volume = {50},
	year = {2013},
	pages = {159-174},
	author = {Sickman, J.O. and Bennett, D.M. and Lucero, D.M. and Whitmore, T.J. and Kenney, W.F.}
}
@article {605,
	title = {Development of Site Relevant Critical Loads},
	year = {2011},
	institution = {Scotland and Northern Ireland Forum for Environmental Research},
	abstract = {As part of a larger body of work on APIS, this project developed an updated, extended, and improved Site-Relevant Critical Loads tool and user-friendly interface to this tool.},
	keywords = {air, air quality, assessment, critical, ecosystem, GUI, habitat, pollutant, pollution, risk},
	issn = {ER04},
	author = {SNIFFER}
}
@article {1279,
	title = {Dry deposition of ammonia gas drives species change faster than wet deposition of ammonium ions: evidence from a long-term field manipulation},
	journal = {Global Change Biology},
	volume = {17 (12)},
	year = {2011},
	pages = {3589-3607},
	author = {Sheppard, L.J. and Leith, I.D. and Mizunuma, T. and Cape, J.N and Crossley, A. and Leeson S. and Sutton, M.A. and Fowler, D. and van Dijk, N.}
}
@article {1677,
	title = {Direct and indirect effects of nitrogen deposition on species composition change in calcareous grasslands},
	journal = {Global Change Biology},
	volume = {17},
	year = {2010},
	pages = {1871-83},
	author = {Van Den Berg, L.J.L. and Vergeer, P. and Rich, T.C.G. and Smart, S.M. and Guest, D. and Ashmore, M.R.}
}
@article {1314,
	title = { Does nitrogen deposition increase forest production? The role of phosphorus},
	journal = {Environmental Pollution},
	volume = {158},
	year = {2010},
	pages = {2043-2052},
	author = {Braun, S. and Thomas, V.F.D. and Quiring, R. and Fl{\"u}ckiger, W.}
}
@article {1550,
	title = {Digest of UK Energy Statistics},
	year = {2009},
	institution = {Department of Energy and Climate Change},
	address = {London},
	author = {.DECC}
}
@article {1452,
	title = {Derivation of ozone flux-yield relationships for lettuce: a key horticultural crop.},
	journal = {Environmental Pollution},
	volume = {146},
	year = {2007},
	pages = {699-706},
	author = {Goumenaki, E. and Fernandez, I. G. and Papanikolaou, A. and Papadopoulou, D. and Askianakis, C. and Kouvarakis, G. and Barnes, J.}
}
@article {1491,
	title = {Dissolved organic carbon trends resulting from changes in atmospheric deposition chemistry.},
	journal = {Nature},
	volume = {450},
	year = {2007},
	pages = {537-539},
	author = {Monteith, D.T. and Stoddard, J.L. and Evans, C.D. and De Wit, H.A. and Forsius, M. and Hogasen, T. and Wilander, A. and Skjelkvale, B.L. and Jeffries, D.S. and Vuorenmaa, J. and Keller, B. and Kop{\'a}cek, J. and Vesely, J.}
}
@article {1273,
	title = {Diversity and sensitivity of epiphytes to oxides of nitrogen in London},
	journal = {Environmental Pollution },
	volume = {146},
	year = {2007},
	pages = {299-310},
	abstract = {This study investigated the distribution and diversity of epiphytes in London in relation to NO(x) using fine-scale atmospheric dispersion modelling. The survey recorded over 3000 epiphytes from 334 trees (Fraxinus excelsior) representing 74 lichen, 14 moss, 7 fungal and 3 algal species. There was a significant inverse relationship between diversity and NO(x). Diversity declined where NO(x) exceeded 70 microg m(-3) and NO2 exceeded 40 microg m(-3), suggesting a phytotoxic effect. However, there was a significant positive relationship between NO(x) and lichen abundance due to the ubiquitous distribution of pollution tolerant species, mainly associated with eutrophication. A scale of lichen sensitivity to NO(x) has been derived.},
	author = {Davies, L. and Bates, J.W. and Bell, J.N.B. and James, P.W. and Purvis, O.W.}
}
@article {1708,
	title = {Detecting changes in epiphytic lichen communities at sites affected by atmospheric ammonia from agricultural sources},
	journal = {Lichenologist},
	volume = {38},
	year = {2006},
	pages = {161-176},
	keywords = {acidophytes, air, ammonia, bark ph, deposition, dispersion, impacts, lichens, netherlands, nitrophytes, oak trees, pollution, recolonization, spatial variability, woodland},
	author = {Wolseley, P. A. and James, P. W. and Theobald, M. R. and Sutton, M. A.}
}
@article {1277,
	title = {Diagnostic indicators of elevated nitrogen deposition},
	journal = {Environmental Pollution},
	volume = {144},
	year = {2006},
	author = {Pitcairn, C.E.R. and Fowler D. and Leith, I.D. and Sheppard, L.J. and Tang, Y.S. and Sutton, M.A. and Famulari D.}
}
@article {1502,
	title = {Differential ozone sensitivity in an old and a modern Swedish wheat cultivar {\textendash} grain yield and quality, leaf chlorophyll and stomatal conductance.},
	journal = {Environmental and Experimental Botany},
	volume = {56},
	year = {2006},
	pages = {63-71},
	author = {Pleijel, H. and Eriksen, A.B. and Danielsson, H. and Bondesson, N. and Sellden, G.}
}
@article {1481,
	title = {Decline of acid-sensitive plant species in heathland can be attributed to ammonium toxicity in combination with low pH.},
	journal = {New Phytologist},
	volume = {166},
	year = {2005},
	pages = {551-564},
	author = {Van Den Berg, L.J. and Dorland, E. and Vergeer, P. and Hart, M.A.C. and Bobbink, R. and Roelofs, J.G.}
}
@article {1674,
	title = {Detecting the signal of atmospheric N  deposition in recent national-scale vegetation change across Britain},
	journal = {Water, Air and  Soil Pollution: Focus},
	volume = {4},
	year = {2004},
	pages = {269{\textendash}278},
	author = {Smart, S.M. and Ashmore, M.R. and Hornung, M.}
}
@article {1119,
	title = {Differential effects of nitrate and ammonium on three fen bryophyte species in relation to pollutant nitrogen input.},
	journal = {New Phytologist},
	volume = {164},
	year = {2004},
	pages = {451-458},
	author = {Paulissen, M.P.C.P. and van der Ven, P.J.M. and Dees, A.J. and Bobbink, R.}
}
@article {105,
	title = {Developing an inventory of N2O emissions from British Soils},
	journal = {Atmos. Environ.},
	volume = {36},
	year = {2002},
	pages = {987 - 998},
	author = {Sozanska, M. and Skiba, U. and Metcalfe, S.}
}
@article {577,
	title = {Deposition of acidifying and eutrophying air pollutants in Scotland: Mapping critical loads, critical levels and exceedances},
	year = {2001},
	institution = {Centre for Ecology and Hydrology},
	author = {Fowler, D. and Dragosits, U. and Pitcairn, C.E.R. and Sutton, M.A. and Hall, J. and Roy, D.B. and Weidemann, A.}
}
@article {75,
	title = {Direct measurement of the UK source strength of radiatively active gases},
	number = {1/1/33},
	year = {2000},
	month = {01/2000},
	author = {Fowler, D. and Hargreaves, K.J. and Skiba, U. and Bower, K.N.}
}
@article {96,
	title = {Direct Measurements of the UK Source Strength of Radiatively Active Gases},
	number = {Contract EPG 1/1/33},
	year = {2000},
	author = {Fowler, D. and Hargreaves, K. and Skiba, U. and Bower, K.}
}
@article {1904,
	title = {Distribution in Portugal of some pollutants in the lichen Parmelia sulcata},
	journal = {Environmental Pollution},
	year = {1999},
	pages = {229-235},
	author = {Freitas, M. C and Reis, M. A and Alves, L. C and Wolterbeek, H. T}
}
@article {732,
	title = {Do acid rain and calcium supply limit eggshell formation for blue tits (Parus caeruleus) in the UK? },
	journal = {Journal of Zoology},
	volume = {247},
	year = {1999},
	pages = {121-125},
	author = {Ramsay, S.L. and Houston, D.C.}
}
@article {1333,
	title = {Denitrification and nitrous oxide concentration in the Humber Estuary, UK, and Adjacent Coastal zones},
	journal = {Marine Pollution Bulletin},
	volume = {37},
	year = {1998},
	pages = {247-260},
	author = {Barnes, J. and Owens, N.J.P.}
}
@article {547,
	title = {Differential effects of ammonium nitrate on three heathland species},
	journal = {Plant Ecology},
	volume = {135},
	year = {1998},
	pages = {185-196},
	author = {De Graaf, M.C.C. and Bobbink, R. and Roelofs, J.G.M. and Verbank, P.J.M.}
}
@article {673,
	title = {Discriminant analysis of the terrestrial and aquatic habitat determinants of the smooth newt (Triturus vulgaris) and the common frog (Rana temporaria) in Ireland},
	journal = {Journal of Zoology},
	volume = {244},
	year = {1998},
	pages = {1-6},
	author = {Marnell, F.}
}
@article {22,
	title = {Dispersion, deposition and impacts of atmospheric ammonia: quantifying local budgets and spatial variability},
	journal = {Environmental Pollutution (Nitrogen Conference Special Issue)},
	volume = {102},
	year = {1998},
	pages = {349-361},
	chapter = {1},
	author = {Sutton, M.A. and Milford, C. and Dragosits, U. and Place, C.J. and Singles, R.J. and Smith, R.I. and Pitcairn, C.E.R. and Fowler, D. and Hill, J. and ApSimon, H.M. and Ross, C. and Hill, R. and Jarvis, S.C. and Pain, B.F. and Phillips, V.C. and Harrison, R. and Moss, D. and Webb, J. and Espenhahn, S.E. and Lee, D.S. and Hornung, M. and Ullyett, J. and Bull, K.R. and Emmett, B.A. and Lowe, J. and Wyers, G.P.}
}
@article {147,
	title = {Deposition fluxes of acidifying compounds in the United Kingdom},
	year = {1997},
	institution = {Institute of Terrestrial Ecology},
	author = {Critical Loads Advisory Group}
}
@article {49,
	title = {Deposition fluxes of acidifying compounds in the United Kingdom. Prepared for the Department of the Environment by the Critical Loads Advisory Group (CLAG)},
	year = {1997},
	institution = {Institute of Terrestrial Ecology},
	address = {Edinburgh},
	author = {Critical Loads Advisory Group}
}
@article {150,
	title = {Depositional time trends and remobilization of PCBs in lake sediments},
	journal = {Environmental Science and Technology},
	volume = {31},
	year = {1997},
	pages = {3274-3280},
	author = {Gevao, B. and Hamilton-Taylor, J. and Murdock, C. and Jones, K.C. and Kelly, M. and Tabner, B.J.}
}
@article {66,
	title = {Development and evaluation of sediment quality guidelines for Florida coastal waters},
	journal = {Ecotoxicology },
	volume = {5},
	year = {1996},
	pages = {253-278},
	author = {MacDonald, D.D. and Carr, R.S. and Calder, F.D. and Long, E.R. and Ingersoll, C.G.}
}
@article {1455,
	title = {Different responses to ozone of tobacco, poplar, birch and alder.},
	journal = {Journal of Plant Physiology},
	volume = {148},
	year = {1996},
	pages = {207-214},
	author = {Gunthardt-Georg, M.S.}
}
@article {246,
	title = {Deposition of fixed atmospheric nitrogen and foliar nitrogen content of bryophytes and Calluna vulgaris},
	journal = {Environmental Pollution},
	volume = {88},
	year = {1995},
	pages = {193-205},
	author = {Pitcairn, C.E.R. and Fowler, D. and Grace, J.}
}
@article {738,
	title = {The Demographic Consequences of Nitrogen-Fertilization of a Population of Sundew, Drosera-Rotundifolia},
	journal = {Acta Botanica Neerlandica},
	volume = {43(2)},
	year = {1994},
	pages = {175-188},
	author = {Redbotorstensson, P.}
}
@article {593,
	title = {Differential-Effects of pH and Temperature on Embryonic- Development in the British Newts (Triturus). },
	journal = {Journal of Zoology},
	volume = {234},
	year = {1994},
	pages = {613-622},
	author = {Griffiths, R.A. and Dewijer, P.}
}
@article {1711,
	title = {Does nitrogen supply limit the growth of Antarctic lichens?},
	journal = {Cryptogamic Botany},
	volume = {4},
	year = {1994},
	pages = {143-155},
	author = {Crittenden, P.D. and Kalucka, I. and Oliver, E.}
}
@article {710,
	title = {The Deposition of Atmospheric Ammonia and Its Effects on Plants},
	journal = {New Phytologist},
	volume = {125},
	year = {1993},
	pages = {283-305},
	author = {Pearson, J. and Stewart, G.R.}
}
@article {580,
	title = {Diet and Habitat Use of the Dotterel Charadrius-Morinellus in Scotland},
	journal = {Ibis},
	volume = {135},
	year = {1993},
	pages = {148-155},
	author = {Galbraith, H. and Murray, S. and Duncan, K. and Smith, R. and Whitfield, D.P. and Thompson, D.B.A.}
}
@article {1547,
	title = {Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees.},
	journal = {Environmental Pollution},
	volume = {82},
	year = {1993},
	pages = {167-180},
	author = {Cape, J.N.}
}
@article {28,
	title = {Direct damage to vegetation caused by acid rain and polluted cloud: definition of critical levels for forest trees},
	journal = {Environmental Pollution 82},
	year = {1993},
	pages = {167-180},
	author = {Cape, J.N}
}
@article {295,
	title = {Dissolved inorganic nitrogen budget for a forested catchment at Beddgelert, North Wales},
	journal = {Environmental Pollution},
	volume = {80},
	year = {1993},
	pages = {1-8},
	author = {Stevens, P.A. and Williams, T.G. and Norris, D.A. and Rowland, A.P.}
}
@article {1463,
	title = { Distribution and decline of endangered herbaceous heathland species in relation to the chemical composition of the soil},
	journal = {Plant and Soil},
	volume = {148},
	year = {1993},
	pages = {137-143},
	author = {Houdijk, A.L.F.M. and Verbank, P.J.M. and van Dijk, H.F.G. and Roelofs, J.G.M.}
}
@article {513,
	title = {Decline of Charophytes During Eutrophication - Comparison with Angiosperms},
	journal = {Freshwater Biology},
	volume = {28},
	year = {1992},
	pages = {9-14},
	author = {Blindow, I.}
}
@article {1472,
	title = {The decrease of rich fen Bryophytes in the Netherlands.},
	journal = {Biological Conservation},
	volume = {59},
	year = {1992},
	pages = {139-143},
	author = {Kooijman, A.M.}
}
@article {779,
	title = {Deposition of Atmospheric Ammonia to Moorlands.},
	journal = {Environmental Pollution},
	volume = {75},
	year = {1992},
	pages = {15-24},
	author = {Sutton, M.A. and Moncrieff, J.B. and Fowler, D.}
}
@article {487,
	title = {Decline of ectomycorrhizal fungi in Europe.  },
	journal = {Agriculture Ecosystems and Environment},
	volume = {35},
	year = {1991},
	pages = {209-244},
	author = {Arnolds, E.}
}
@article {546,
	title = {The Distribution and Breeding Site Characteristics of Newts in Cumbria, England. },
	journal = {Herpetological Journal },
	volume = {1},
	year = {1991},
	pages = {549-554},
	author = {Denton, J.S.}
}
@mastersthesis {792,
	title = {Decline of carpophores of mycorrhizal fungi instand, of Pinus sylvestris},
	year = {1990},
	school = {University of Wageningen},
	type = {PhD},
	address = {Netherlands},
	author = {Termoshuizen, A.J.}
}
@article {507,
	title = {Decline of the natterjack toad Bufo clamita in Britain: Paleoecological, documentary and experimental evidence for breeding site acidification},
	journal = {Biological Conservation},
	volume = {53},
	year = {1990},
	pages = {1-20},
	author = {Beebee, T.J.C. and Flower, R.J. and Stevenson, A.C. and Patrick, S.T. and Appleby, P.G. and Fletcher, C. and Marsh, C. and Natkanski, J. and Rippey, B. and Batterby, R.}
}
@article {310,
	title = {The difficulties of abating smoke in Late Victorian York},
	journal = {Atmospheric Environment Part B-Urban Atmosphere},
	volume = {24},
	year = {1990},
	pages = {49-55},
	author = {Bowler, C. and Brimblecombe, P.}
}
@article {82,
	title = {Deposition of atmospheric pollutants on forests},
	journal = {Philosophical Transactions of the Royal Society of London Series B-Biological Sciences},
	volume = {324},
	year = {1989},
	pages = {247-265},
	author = {Fowler, D. and Cape, J.N and Unsworth, M.H.}
}
@book {1963,
	title = {Detection of manganese deficiency and toxicity in plants. Manganese in soils and plants},
	year = {1988},
	pages = {243-259},
	publisher = {Kluwer Publishers},
	organization = {Kluwer Publishers},
	address = {Dordrecht},
	author = {Hannam, R. J and Ohki, K}
}
@book {1964,
	title = {Determination of plant-available soil manganese},
	series = {Manganese in soils and plants},
	year = {1988},
	pages = {87-98},
	publisher = {Kluwer Publishers},
	organization = {Kluwer Publishers},
	address = {Dordrecht},
	author = {Reisenauer, H. M}
}
@book {1940,
	title = { Distribution and movement of manganese in plants},
	series = {Manganese in soils and plants},
	year = {1988},
	pages = {113-124},
	publisher = {Kluwer Publishers},
	organization = {Kluwer Publishers},
	address = {Dordrecht},
	author = {Loneragan, J. F}
}
@article {1915,
	title = {Daphnia magna as a model to assess heavy metal toxicity: comparative assessment with the mouse system},
	journal = {Acta Hydrochim Hydrobiol},
	year = {1987},
	pages = {427-432},
	author = {Khangarot, B. S and Ray, P. K}
}
@article {667,
	title = {Direct Effects of Sulphur on Forests in Europe - a Regional Model of Risk},
	journal = {International Institute for Applied Systems Analysis (WP-87-57)},
	year = {1987},
	publisher = {International Institute for Applied Systems Analysis},
	address = {Luxembourg},
	url = {http://webarchive.iiasa.ac.at/Admin/PUB/Documents/WP-87-057.pdf},
	author = {Makela, A. and Materna, J. and Schoop, W.}
}
@article {1632,
	title = {Depression of Growth and Yield in Winter Barley Exposed to Sulphur Dioxide in the Field.},
	journal = {New Phytologist},
	volume = {104},
	year = {1986},
	pages = {233-241},
	author = {Baker, C.K. and Colls, J.J. and Fullwood, A.E. and Seaton, G.G.R.}
}
@article {1990,
	title = {Determination of platinum and iridium in marine waters, sediments and organisms},
	journal = {Analytical Chemistry},
	year = {1986},
	pages = {616-620},
	author = {Hodge, V. F and Stallard, M and Koide, M and Goldberg, E. D}
}
@article {181,
	title = {Diatom analysis and the acidification of lakes},
	journal = {Philosophical Transactions of the Royal Society of London B},
	volume = {305},
	year = {1984},
	pages = {451-477},
	author = {Battarbee, R.W.}
}
@article {1971,
	title = {Determination of acute toxicity levels of mercury to the fish, Tilapia mossambica},
	journal = {Proceedings of the Indian Academy of Sciences (Animal Sciences)},
	year = {1983},
	pages = {375-380},
	author = {Menezes, M. R and Qusim, S. Z}
}
@article {735,
	title = {The dune system and dune slack habitat},
	journal = {Journal of Ecology },
	volume = {447},
	year = {1959},
	pages = {571-600},
	address = {Newborough Warren, Anglesey},
	author = {Ranwell, D.}
}
@article {1450,
	title = {The development of peatlands.},
	journal = {The Quarterly Review of Biology},
	volume = {32},
	year = {1958},
	pages = {146-166},
	author = {Gorham, E.}
}
