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}
@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},
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}
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	title = {Long-term amelioration of acidity accelerates decomposition in headwater streams.},
	journal = {Global Change Biology},
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}
@article {1580,
	title = {Ozone pollution: Impacts on ecosystem services and biodiversity.},
	year = {2013},
	institution = {Centre for Ecology and Hydrology},
	address = {Bangor, UK.},
	url = {http://icpvegetation.ceh.ac.uk/publications/thematic.html.},
	author = {Mills, G. and Wagg, S. and Harmens, H.}
}
@article {1525,
	title = {Stomata are less responsive to environmental stimuli in high background ozone in Dactylis glomerata and Ranunculus acris.},
	journal = {Environmental Pollution},
	volume = {175},
	year = {2013},
	pages = {82-91},
	author = {Wagg, S. and Mills, G. and Hayes, F. and Wilkinson, S. and Davies, W.J.}
}
@article {1440,
	title = {Coastal eutrophication as a driver of salt marsh loss},
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	year = {2012},
	pages = {388-392},
	author = {Deegan, L.A. and Johnson, D.S. and Warren, R.S. and Peterson, B.P. and Fleeger, J.W. and Fagherazzi, S. and Wollheim, W.M.}
}
@article {1528,
	title = {Effects of ozone on species composition in an upland grassland.},
	journal = {Oecologia},
	volume = {168},
	year = {2012},
	pages = {1137-1146},
	author = {Wedlich, K.V. and Rintoul, N. and Peacock, S. and Cape, N.J. and Coyle, M. and Toet, S. and Barnes, J. and Ashmore, M.}
}
@article {1460,
	title = {Grazing exclusion and phosphorus addition as potential local management options for the restoration of alpine moss-sedge heath.},
	journal = {Biological Conservation},
	volume = {153},
	year = {2012},
	pages = {17-24},
	author = {Armitage, H.F. and Britton, A.J. and Van der Wal, R. and Woodin, S.J.}
}
@article {1544,
	title = {Nitrogen deposition enhances moss growth but leads to an overall decline in habitat condition of mountain moss-sedge heath.},
	journal = {Global Change Biology},
	volume = {18},
	year = {2012},
	pages = {290-300},
	author = {Armitage, H.F. and Britton, A.J. and Van der Wal, R. and Pearce, I.S.K. and Thompson, D.B.A. and Woodin, S.J.}
}
@article {1459,
	title = {Ozone pollution affects flower numbers and timing in a simulated BAP priority calcareous grassland community.},
	journal = {Environmental Pollution},
	volume = {163},
	year = {2012},
	pages = {40-47},
	author = {Hayes, F. and Williamson, J. and Mills, G.}
}
@article {1526,
	title = {Reduced soil water availability did not protect two competing grassland species from the negative effects of increasing background ozone.},
	journal = {Environmental Pollution},
	volume = {165},
	year = {2012},
	pages = {91-99},
	author = {Wagg, S. and Mills, G. and Hayes, F. and Wilkinson, S. and Cooper, D. and Davies, W.J.}
}
@article {1571,
	title = {Terricolous lichens as indicators of nitrogen deposition: Evidence from national records.},
	journal = {Ecological Indicators},
	volume = {20},
	year = {2012},
	pages = {196-203},
	author = {Stevens, C.J. and Smart, S.M. and Henrys, P.A. and Maskell, L.C. and Crowe, A. and Simkin, J. and Cheffings, C.M. and Whitfield, C. and Gowing, D.J.G. and Rowe, E.C. and Dore, A.J. and Emmett, B.A.}
}
@article {1659,
	title = {Ash storms: impacts of wind-remobilised volcanic ash on rural communities and agriculture following the 1991 Hudson eruption, southern Patagonia, Chile},
	journal = {Bulletin of Volcanology},
	volume = {73},
	year = {2011},
	pages = {223-239},
	author = {Wilson, T.M. and Cole, J.W. and Stewart, C. and Cronin, S.J. and Johnston, D.M.}
}
@article {1362,
	title = {Assessing the recovery potential of alpine moss-sedge heath: reciprocal transplants along a nitrogen deposition gradient},
	journal = {Environmental Pollution},
	volume = {159},
	year = {2011},
	pages = {140- 147},
	author = {Armitage, H.F. and Britton, A.J. and Woodin, S.J. and Van der Wal, R.}
}
@article {1299,
	title = {Collation of evidence of nitrogen impacts on vegetation in relation to UK biodiversity objectives},
	year = {2011},
	institution = {JNCC},
	issn = {447},
	author = {Stevens, C.J. and Smart, S.M. and Henrys, P. and Maskell, L.C. and Walker, K.J. and Preston, C.D. and Crowe, A. and Rowe, E. and Gowing, D.J. and Emmett, B.A.}
}
@article {1675,
	title = {Ecosystem responses to reduced and oxidised nitrogen inputs in European terrestrial habitats},
	journal = { Environmental Pollution},
	volume = {159 },
	year = {2011},
	pages = {665-676},
	author = {Stevens, C.J. and Manning, P. and Van Den Berg, L.J.L. and De Graaf, M.C.C. and Wamelink, G.W.W. and Boxman, A.W. and Bleeker, A. and Vergeer, P. and Arroniz-Crespo, M. and Limpens, J. and Lamerse, L.P.M. and Bobbink, R. and Dorland, E.}
}
@article {1660,
	title = {Impacts on agriculture following the 1991 eruption of Vulcan Hudson, Patagonia: lessons for recovery.},
	journal = {Natural Hazards},
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	year = {2011},
	pages = {185-212},
	author = {Wilson, T. and Cole, J. and Cronin, S. and Stewart, C. and Johnston, D.}
}
@article {1303,
	title = {Physiological and morphological effects of long-term ammonium or nitrate deposition on green and red (shade and open grown) Sphagnum capillifolium},
	journal = {Environmental and Experimental Botany},
	volume = {72},
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	author = {Manninen, S. and Woods, C. and Leith, I.D. and Sheppard, L.J.}
}
@article {472,
	title = {Review and revision of empirical critical loads and dose-response relationships},
	year = {2011},
	institution = {Coordination Centre for Effects},
	address = {Noordwijkerhout},
	isbn = {978-90-6960-251-6},
	author = {Bobbink, R. and Braun, S. and Nordin, A. and Power, S. and Schutz, K. and Strengbom, J. and Weijters, M. and Tomassen, H.},
	editor = {Bobbink, R. and Hettelingh, J.P.}
}
@article {1575,
	title = {Chemical fluxes in time through forest ecosystems in the UK {\textendash} Soil response to pollution recovery.},
	journal = {Environmental Pollution},
	volume = {158},
	year = {2010},
	pages = {1857-1869},
	author = {Vanguelova, E.I. and Benham, S. and Pitman, R. and Moffat, A.J. and Broadmeadow, M. and Nisbet, T. and Durrant, D. and Barsoum, N. and Wilkinson, M. and Bochereau, F. and Hutchings, T. and Broadmeadow, S. and Crow, P. and Taylor, P. and Houston, T.D.}
}
@article {1475,
	title = {Long-term variation in the littoral food web of an acidified mountain lake.},
	journal = {Global Change Biology},
	volume = {16},
	year = {2010},
	pages = {3133-3143},
	author = {Layer, K. and Hildrew, A. and Monteith, D.O.N. and Woodward, G.U.Y.}
}
@article {1554,
	title = {Relationships between lichen community composition and concentrations of NO2 and NH3.},
	journal = {Environmental Pollution},
	volume = {158},
	year = {2010},
	pages = {2553-2560},
	author = {Gadson, S.R. and Dagley, J.R. and Wolseley, P.A. and Power, S.A.}
}
@article {1706,
	title = {Can small-scale experiments predict ecosystem responses? An example from peatlands},
	journal = {Oikos},
	volume = {118},
	year = {2009},
	pages = {449-456},
	keywords = {atmospheric nitrogen deposition, boreal mire, carbon accumulation, climate-change, n deposition, ombrotrophic bogs, peat bogs, plant community, sphagnum litter, vegetation},
	author = {Wiedermann, M. M. and Gunnarsson, U. and Nilsson, M. B. and Nordin, A. and Ericson, L.}
}
@article {1487,
	title = {Chronic exposure to increasing background ozone impairs stomatal functioning in grassland species.},
	journal = {Global Change Biology},
	volume = {15},
	year = {2009},
	pages = {1522-1533},
	author = {Mills, G. and Hayes, F. and Wilkinson, S. and Davies, W.J.}
}
@article {1622,
	title = {Impact of changes in diffuse radiation on the global land carbon sink.},
	journal = {Nature},
	volume = {458},
	year = {2009},
	pages = {1014-1018},
	author = {Mercado, L.M. and Bellouin, N. and Sitch, S. and Boucher, O. and Huntingford, C. and Wild, M. and Cox, P.M.}
}
@mastersthesis {1541,
	title = {The impacts of elevated ozone on plant vitality and carbon cycling in wetlands. },
	volume = {PhD},
	year = {2009},
	school = {Bangor University},
	address = {Bangor, UK.},
	author = {Williamson, J.}
}
@article {1514,
	title = {Leaf gas exchange and water potential responses to drought in nine poplar (Populus spp.) clones with contrasting drought tolerance.},
	journal = {Trees},
	volume = {23},
	year = {2009},
	pages = {959-969},
	author = {Silim, S. and Nash, R. and Reynard, D. and White, B. and Schroeder, W.}
}
@article {1387,
	title = {Particulate matter at a rural location in southern England during 2006: Model sensitivities to precursor emissions},
	journal = {Atmospheric Environment},
	volume = { 43},
	year = {2009},
	pages = {689-696},
	author = {Derwent, R.G. and Witham, C. and Redington, A. and Jenkin, M.E. and Stedman, J.R. and Yardley, R. and Hayman, G.}
}
@article {1480,
	title = {Quantifying the impact of current and future tropospheric ozone on tree biomass, growth, physiology and biochemistry: a quantitative meta-analysis.},
	journal = {Global Change Biology},
	volume = {15},
	year = {2009},
	pages = {396-424},
	author = {Wittig, V.E. and Ainsworth, E.A. and Naidu, S.L. and Karnosky, D.F. and Long, S.P.}
}
@article {1344,
	title = {Factors controlling soil development in sand dunes: evidence from a coastal dune soil chronosequence},
	journal = {Plant and Soil},
	volume = {307},
	year = {2008},
	pages = {219-234},
	author = {Jones, M.L.M. and Sowerby, A. and Williams, D.L. and Jones, R.E.}
}
@article {1280,
	title = {Stress responses of Calluna vulgaris to reduced and oxidised N applied under real world conditions},
	journal = {Environmental Pollution},
	volume = {154 (3)},
	year = {2008},
	pages = {404-413},
	author = {Sheppard, L.J. and Leith, I.D. and Crossley, A. and van Dijk, N. and Fowler, D. and Sutton, M.A. and Woods, C.}
}
@article {87,
	title = {Stress responses of Calluna vulgaris to reduced and oxidised N applied under {\textquoteright}real world conditions{\textquoteright}},
	journal = {Environmental Pollution},
	volume = {154},
	year = {2008},
	pages = {404-413},
	author = {Sheppard, L.J. and Leith, I.D. and Crossley, A. and van Dijk, N. and Fowler, D. and Sutton, M.A. and Woods, C.}
}
@article {1609,
	title = {The use of biomonitoring tools to detect ecosystem response following exposure to contaminants emitted from a regulated industrial source.},
	year = {2008},
	institution = {Environment Agency},
	address = {Bristol},
	issn = {SC030175/SR3},
	author = {Long, S. and Lister, L. and Hankard, P. and Rothery, P. and Ainsworth, G. and Rowland, P. and Walker, L. and Wright, J. and Turk, T. and Bealey, B. and Leith, I. and Cape, N. and Spurgeon, D.}
}
@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 {1350,
	title = {Global change shifts vegetation and plant-parasite interactions in a boreal mire},
	journal = {Ecology},
	volume = {88},
	year = {2007},
	pages = {454-464},
	author = {Wiedermann, M.M. and Nordin, A. and Gunnarsson, U. and Nilsson, M.B. and Ericson, L.}
}
@article {1486,
	title = {Interactive effects of ozone and climate on water use, soil moisture content and streamflow in a southern Appalachian forest in the USA.},
	journal = {New Phytologist},
	volume = {174},
	year = {2007},
	pages = {125-136},
	author = {McLaughlin, S.B. and Wullschleger, S.D. and Sun, G. and Nosal, M.}
}
@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 {1482,
	title = {Extraordinary drought of 2003 overrules ozone impact on adult beech trees (Fagus sylvatica).},
	journal = {Trees},
	volume = {20},
	year = {2006},
	pages = {539-548},
	author = {Low, M. and Herbinger, K. and Nunn, A.J. and Haberle, K.H. and Leuchner, M. and Heerdt, C. and Werner, H. and Wipfler, P. and Pretzsch, H. and Tausz, M. and Matyssek, R.}
}
@article {1426,
	title = {Growth and nutritive quality of Poa pratensis as influence by ozone and competition.},
	journal = {Environmental Pollution},
	volume = {142},
	year = {2006},
	pages = {109-115},
	author = {Bender, J. and Muntifering, R.B. and Lin, J.C. and Weigel, H.J.}
}
@article {1590,
	title = {Impacts of summer ozone exposure on the growth and overwintering of UK upland vegetation.},
	journal = {Atmospheric Environment},
	volume = {40},
	year = {2006},
	pages = {4088-4097},
	author = {Hayes, F. and Mills, G. and Williams, P. and Harmens, H. and Buker, P.}
}
@article {1489,
	title = {Biological responses to the chemical recovery of acidified fresh waters in the UK.},
	journal = {Environmental Pollution},
	volume = {137},
	year = {2005},
	pages = {83-101},
	author = {Monteith, D.T. and Hildrew, A.G. and Flower, R.J. and Raven, P.J. and Beaumont, W.R.B. and Collen, P. and Kreiser, A.M. and Shilland, E.M. and Winterbottom, J.H.}
}
@article {1610,
	title = {Biomonitoring methods for assessing the impacts of nitrogen pollution: refinement and testing},
	year = {2005},
	institution = {JNCC},
	issn = {386},
	author = {Leith, I. and van Dijk, N. and Pitcairn, C.E.R. and Wolseley, P.A. and Whitfield, C.P. and Sutton, M.A.}
}
@article {1341,
	title = {Growth and biomass of mycorrhizal mycelia in coniferous forestsalong short natural nutrient gradients},
	journal = {New Phytologist},
	volume = {165},
	year = {2005},
	pages = {613{\textendash}622},
	author = {Nilsson, L.O. and Giesler, R. and B{\r a}{\r a}th, E. and Wallander, H.}
}
@article {253,
	title = {Bioindicator and biomonitoring methods for assessing the effects of atmospheric nitrogen on statutory nature conservation sites},
	year = {2004},
	address = {Peterborough},
	author = {Sutton, M.A. and Pitcairn, C.E.R. and Leith, I.D. and van Dijk, N. and Tang, Y.S. and Skiba, U. and Smart, S. and Mitchell, R. and Wolseley, P. and James, P. and Purvis, W. and Fowler, D.},
	editor = {Sutton, M.A. and Pitcairn, C.E.R. and Whitfield, C.P.}
}
@article {1102,
	title = {Changes in vegetation and soil characteristics in coastal sand dunes along a gradient of atmospheric nitrogen deposition},
	journal = {Plant Biology},
	volume = {6},
	year = {2004},
	pages = {598-605},
	author = {Jones, M.L.M. and Wallace, H.L. and Norris, D. and Brittain, S.A. and Haria, S. and Jones, R.E. and Rhind, P.M. and Reynolds, B.R. and Emmett, B.A.}
}
@article {1707,
	title = {Modelling the spatial distribution of ammonia emissions from seabirds in the UK},
	journal = {Environmental Pollution},
	volume = {131},
	year = {2004},
	pages = {173-185},
	keywords = {excretion, inventory, metabolic rates, model, nitrogen, nitrogen deposition, united-kingdom, volatilisation},
	author = {Wilson, L. J. and Bacon, P. J. and Bull, J. and Dragosits, U. and Blackall, T. D. and Dunn, T. E. and Hamer, K. C. and Sutton, M. A. and Wanless, S.}
}
@article {1527,
	title = {The restoration and re-creation of species-rich lowland grassland on land formerly managed for intensive agriculture in the UK.},
	journal = {Biological Conservation},
	volume = {119},
	year = {2004},
	pages = {1-18},
	author = {Walker, K.J. and Stevens, P.A. and Stevens, D.A. and Mountford, J.O. and Manchester, S.J. and Pywell, R.F.}
}
@article {1713,
	title = {Changing landscapes, habitats and vegetation diversity across Great Britain},
	journal = {Journal of Environmental Management},
	volume = {67},
	year = {2003},
	pages = {267-281},
	author = {Haines-Young, R. and Barr, C.J. and Firbank, L.G. and Furse, M. and Howard, D.C. and McGowan, G. and Petit, S. and Smart, S.M. and Watkins, J.W.}
}
@article {1932,
	title = {he accumulation of potentially toxic elements in edible body tissues of lambs grazing after a single application of sewage sludge},
	journal = {Water Research},
	year = {2003},
	pages = {128-138},
	author = {Wilkinson, J. M and Hill, J and Hillman, J. P}
}
@article {1358,
	title = {Interplay between nitrogen deposition and grazing causes habitat degradation},
	journal = {Ecology Letters},
	volume = {6},
	year = {2003},
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	author = {Van der Wal, R. and Pearce, I. and Brooker, R. and Scott, D. and Welch, D. and Woodin, S.}
}
@article {1485,
	title = {Long-term trends in pH, aluminium and dissolved organic carbon in Scottish fresh waters; implications for brown trout (Salmo trutta) survival},
	journal = {Science of The Total Environment},
	volume = {310},
	year = {2003},
	pages = {133-141},
	author = {McCartney, A.G. and Harriman, R. and Watt, A.W. and Moore, D.W. and Taylor, E.M. and Collen, P. and Keay, E.J.}
}
@article {1705,
	title = {Native plant species suitable as bioindicators and biomonitors for airborne fluoride},
	journal = {Environmental Pollution},
	volume = {125},
	year = {2003},
	pages = {3-11},
	keywords = {air-pollution, bioindicator, biological indicators, biomonitoring, bryophytes, emission, epiphytic lichens, fluoride, hf, long-harbour, newfoundland, phosphorus plant, vegetation, vicinity, visible injury},
	author = {Weinstein, L. H. and Davison, A. W.}
}
@article {1359,
	title = {Physiological and growth responses of the montane bryophyte Racomitrium lanuginosum to atmospheric nitrogen deposition},
	journal = {New Phytologist},
	volume = {160 },
	year = {2003},
	pages = {145{\textendash}155},
	author = {Pearce, I.S.K. and Woodin, S.J. and Van der Wal, R.}
}
@article {1340,
	title = {The production of externalmycelium by ectomycorrhizal fungi in a Norway spruceforest was reduced in response to nitrogen fertilization},
	journal = {New Phytologist},
	volume = {158},
	year = {2003},
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}
@article {1989,
	title = {Environmental Health Criteria 226 Palladium},
	year = {2002},
	institution = {World Health Organisation},
	address = {Geneva},
	author = {WHO}
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@article {139,
	title = {Environmental Health Criteria 227: Fluorides},
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	author = {WHO}
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	year = {2002},
	type = {Background paper presented at the UNECE Workshop Establishing Ozone Critical Levels II, Goteborg November 2002},
	author = {Skarby, L. and Ottoson, S. and Karlsson, P.E. and Wallin, G. and Sellden, G. and Medin, E. and Pleijel, H.}
}
@inbook {822,
	title = {Monitoring with Lichens - Monitoring Lichens},
	booktitle = {Nato Sciences },
	year = {2002},
	pages = {285-290},
	publisher = {Kluwer},
	organization = {Kluwer},
	chapter = {Epiphytes on wayside trees as an indicator of eutrophication in the Netherlands},
	address = {Dordrecht},
	author = {Van Herk, C.M. and Nimis, P.L. (Eds) and Scheidegger, C. (Eds) and Wolseley, P.A.}
}
@article {699,
	title = {Monitoring with Lichens - Monitoring Lichens,Proceedings of the NATO Advanced Research Workshop on Lichen Monitoring, Wales, United Kingdom, 16-23 August 2000},
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	author = {Nimis, P.L. and Scheidegger, C. and Wolseley, P.A.}
}
@article {1879,
	title = {Phytoremediation of polluted waters, potentials and prospects of wetland plants},
	journal = {Acta Biotechnologica},
	year = {2002},
	pages = {199-208},
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}
@article {252,
	title = {Review of sublethal ecotoxicological tests for measuring harm in terrestrial ecosystems},
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}
@article {1336,
	title = {Soil core method for direct simultaneous determination of N-2 and N2O emissions from forest soils},
	journal = {Plant and Soil},
	volume = {240},
	year = {2002},
	pages = {105-116},
	author = {Butterbach-Bahl, K. and Willibald, G. and Papen, H.}
}
@article {781,
	title = {Biosphere-atmosphere interactions of ammonia with grasslands: experimental strategy and results from a new European initiative},
	journal = {Plant and Soil },
	volume = {228 (1)},
	year = {2001},
	pages = {131-145},
	author = {Sutton, M.A. and Milford, C. and Nemitz, E. and Theobald, M.R. and Fowler D. and Schjoerring, J.K. and Mattsson, M.E. and Nielsen, K.H. and Husted, S. and Erisman, J.W. and Oties, R. and Hensen, A. and Mosquera, J. and Cellier, P. and Loubert, B. and David, M. and Genermont, S. and Neftel, A. and Blatter, A. and Herrmann, B. and Jones, S.K. and Horvath, L. and Flhrer, E. and Mantzanas, K. and Koukoura, Z. and Gallagher, M. and Williams, P. and Flynn, M. and Riedo, M.}
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@article {2001,
	title = {Concise International Chemical Assessment Document 29 Vanadium pentoxide and other inorganic vanadium compounds.},
	year = {2001},
	institution = {World Health Organisation},
	address = {Geneva},
	author = {WHO}
}
@article {577,
	title = {Deposition of acidifying and eutrophying air pollutants in Scotland: Mapping critical loads, critical levels and exceedances},
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	institution = {Centre for Ecology and Hydrology},
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	pages = {109-113},
	author = {Smidt, R. E and Whitton, J. S}
}
@article {1972,
	title = {The toxicity of  140 substances to the brown shrimp and other marine animals},
	number = {11},
	year = {1971},
	institution = {MInistry of Agriculture, Fisheries and Food},
	author = {Portmann, J. E and Wilson, K. W}
}
@article {1917,
	title = {The acute toxicity of some heavy metals to different species of aqautic insects},
	journal = {Journal of the Water Pollution Control Federation},
	year = {1969},
	pages = {280-284},
	author = {Warnick, S and Bell, H}
}
@article {842,
	title = {Braunton Burrows: The effects on the vegetation of the addition of mineral nutrients to the dune soils},
	journal = {Journal of Ecology },
	volume = {51},
	year = {1963},
	pages = {353-374},
	author = {Willis, A.J.}
}
@article {838,
	title = {Some observations on the vegetation of Blakeney Point, Norfolk, following the disappearance of rabbits in 1954},
	journal = {Journal of Ecology },
	volume = {49},
	year = {1961},
	pages = {113-118},
	author = {White, D.J.B.}
}
