@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.}
}
@book {307,
	title = {Effects of oxidants at the biochemical, cell, and physiological levels, with particular reference to ozone},
	series = {Air Pollution and Plant Life},
	year = {2002},
	pages = {pp 69-88},
	publisher = {John Wiley and Sons Ltd.},
	organization = {John Wiley and Sons Ltd.},
	author = {Long, S.P. and Naidu, S.L.},
	editor = {Bell, J.N.B. and M. Treshow}
}
@book {304,
	title = {Effects of oxidants at the whole plant and community level},
	series = {Air Pollution and Plant Life},
	year = {2002},
	pages = {pp 89-118},
	publisher = {John Wiley and Sons Ltd.},
	organization = {John Wiley and Sons Ltd.},
	author = {Ashmore, M.R.},
	editor = {Bell, J.N.B. and M. Treshow}
}
@article {508,
	title = {Atmospheric Change - Effect on Plant Pests and Diseases},
	journal = {Parasitology},
	volume = {106},
	year = {1993},
	pages = {S11-S24},
	author = {Bell, J.N.B. and McNeill, S. and Houlden, G. and Brown, V.C. and Mansfield, P.J.}
}
@inbook {569,
	title = {Ecophysiological effects of acid rain on bryophytes and lichens},
	booktitle = {Bryophytes and lichens in a changing environment},
	year = {1992},
	publisher = {Clarendon Press},
	organization = {Clarendon Press},
	address = {Oxford},
	author = {Farmer, A.M. and Bates, J.W. and Bell, J.N.B. and Bates, J.W. (Eds) and Farmer, A.M. (Eds)}
}
@article {567,
	title = {Comparisons of 3 Woodland Sites in NW Britain Differing in Richness of the Epiphytic Lobarion-Pulmonariae Community and Levels of Wet Acidic Deposition},
	journal = {. Holarctic Ecology},
	volume = {14},
	year = {1991},
	pages = {85-91},
	author = {Farmer, A.M. and Bates, J.W. and Bell, J.N.B.}
}
@article {1635,
	title = {Effects of sulphur dioxide on the development of fungal diseases of winter barley in an open-air fumigation system.},
	journal = {Agriculture, Ecosystems and Environment},
	volume = {33},
	year = {1991},
	pages = {215-232},
	author = {Mansfield, P.J. and Bell, J.N.B. and McLeod, A.R. and Wheeler, B.E.J.}
}
@article {568,
	title = {Seasonal variations in acidic pollutant inputs and their effects on the chemistry of stemflow, bark and epiphyte tissues in three oak woodlands in N.W. Britain},
	journal = {New Phytologist},
	volume = {118},
	year = {1991},
	pages = {441-451},
	author = {Farmer, A.M. and Bell, J.N.B. and Bates, J.W.}
}
@article {1464,
	title = {Air pollution and agricultural aphid pests. I: Fumigation experiments with SO2 and NO2.},
	journal = {Environmental Pollution},
	volume = {67},
	year = {1990},
	pages = {305-314},
	author = {Houlden, G. and McNeill, S. and Aminu-Kano, M. and Bell, J.N.B.}
}
@article {1630,
	title = {Air Pollution and Agricultural Aphid Pests. I: Fumigation Experiments with SO2 and NO2.},
	journal = {Environmental Pollution},
	volume = {67},
	year = {1990},
	pages = {305-314},
	author = {Houlden, G. and McNeill, S. and Aminu-Kano, M. and Bell, J.N.B.}
}
@article {497,
	title = {Epiphyte recolonization of oaks along a gradient of air pollution in south-east England, 1979-1990. },
	journal = {Environmental Pollution},
	volume = {68},
	year = {1990},
	pages = {81-99},
	author = {Bates, J.W. and Farmer, A.M. and Bell, J.N.B.}
}
@article {254,
	title = {Air pollution injury to vegetation},
	year = {1986},
	institution = {IEHO},
	address = {Chadwick House, London},
	author = {Taylor, H. J. and Ashmore, M.R. and Bell, J.N.B.}
}
@article {552,
	title = {Air pollution increases Aphis fabae pest potential},
	journal = {Nature},
	volume = {307},
	year = {1984},
	pages = {52-53},
	author = {Dohmen, G.P. and McNeill, S. and Bell, J.N.B.}
}
@article {493,
	title = {Studies on the tolerance of SO2 of grass populations in polluted areas - I},
	journal = {Identification of tolerant populations. New Phytologist },
	volume = {88},
	year = {1981},
	pages = {203-222},
	author = {Ayazloo, M. and Bell, J.N.B.}
}
@article {1645,
	title = {Studies on the effects of low levels of sulphur dioxide on the growth of Lolium Perenne L.},
	journal = {New Phytologist},
	volume = {83},
	year = {1979},
	pages = {627-643},
	author = {Bell, J.N.B. and Rutter, A.J. and Relton, J.}
}
@article {573,
	title = {Effects of sulphur pollutants on the growth of Sphagnum species.},
	journal = {Environmental Pollution},
	volume = {16},
	year = {1978},
	pages = {151-162},
	author = {Ferguson, N.P. and Lee, J.A. and Bell, J.N.B.}
}
@article {219,
	title = {Survey of ozone levels in British Isles using indicator plants},
	journal = {Nature},
	volume = {276(5690)},
	year = {1978},
	pages = {813-815},
	author = {Ashmore, M.R. and Bell, J.N.B. and Reily, C.L.}
}
