Active Biomonitoring of Heavy Metals and PAHs with Mosses and Lichens: a Case Study in the Cities of Naples and London - S. Vingiani; F. De Nicola; W. O. Purvis; E. Concha-Graña; S. Muniategui-Lorenzo; P. López-Mahía; S. Giordano; P. Adamo (Water, Air, & Soil Pollution, 2015)