Atmospheric Deposition: Sampling Procedures, Analytical Methods, and Main Recent Findings from the Scientific Literature

Table 6

Main features of the different strategies of lichens biomonitoring.

Strategies	In situ lichens	Transplants
Definition	Observation or chemical analysis of indigenous plants	Collection of biomonitors from a nonpolluted site and transplantation to sites to be monitored
Time effects	Air pollution long-term effects	Air pollution short-term effects
Major impact	Spatial impact	Temporal impact
Common species	Xanthoria parietina	Ramalina canariensis Steiner