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Epiphytic lichen samples were collected in and around a city of 300000 inhabitants in NE France to study the dispersion and fallout of Cd, Cu, Zn and Pb. Lichens hanging in small tree branches within a 15km radius from the city centre, together with bus air filter aerosols and unleaded gasoline samples, were analysed to evaluate the relative contribution of anthropogenic metals. On an average, Pb...
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