Larsen, R. S./ Bell, J. N. B./ James, P. W./ Chimonides, J./ Rumsey, F. J./ Tremper, A./ Purvis, W. O. 2007: Lichen and bryophyte distribution on oak in London in relation to air pollution and bark acidity. - Environmental Pollution146(2): 332-340. [RLL List # 206 / Rec.# 28915] Keywords: LONDON/ ENGLAND/ BRITISH ISLES/ AIR POLLUTION/ PH/ BACK ACIDITY
Abstract: [64 lichen species recorded. "Nineteen species were correlated with nitrogen oxides and 16 with bark pH, suggesting that transport-related pollution and back acidity influence lichen and bryophyte distribution in London today."