No abstract

An increasing body of literature has addressed the applicability of lichens as biomonitors of atmospheric element deposition [1-3]. These organisms have been regarded as effective bioaccumulators of heavy metals and complex organic pollutants because lichens rely on the atmosphere for nutrients and have high capacities to accumulate and tolerate atmospheric pollutants [1-4]. In China, road traffic is one of the largest sources of emissions of atmospheric pollutants, which have negative effects on human health and the ecosystem