Lerond, M/ Van Haluwyn, C 1981: Les indicateurs biologiques et le developpement: les lichens. - In: : Les Connaissances Scientifiques et le Developpement et la Gestion des Resources et de l'Espace. . C. N. R. S., Paris pp. 121-126. [RLL List # 122-53 / Rec.# 11323] Keywords: FRANCE/ OWN/ AIR POLLUTION/ PHYTOSOCIOLOGY
Abstract: 3 figures. 1 table. ["Lichens are used as biological indicators for air pollution. About ten proceedings have been issued in France in this field. The conclusive results are shown on maps, where pollution becomes evident as concentric zones around origin. Though that method is not always satisifying about towns, phytosociology gives a possible generalizing."]