5LOPPI S,FRATI L, PAOLI L, et al. Biodiversity of epiphytie lichens and heavy metal eontents of flavoparmelia eaperata thalli as indieators of temporal variations of air pollution in the town of Montecatini Terme (centralItaly) [ J ]. Sei Total Environ,2004,29 (1/3) :113 -122.
6SEZGIN N, OZCAN H K, DEMIR G, et al. Determination .of heavy metal concentrations in street dusts in Istanbul E -5 highway [J]. Environment International ,2004,29 ( 7 ) :979 - 985.
