This session welcomes contributions on environmental monitoring of contaminants using cryptogams. It covers a wide range of contaminants, being specifically focused on persistent, bioaccumulative and toxic compounds. Topics in this session include but are not limited to: new methods, data quality evaluation, source apportionment, and spatial and temporal patterns of environmental contamination. This session welcomes contributions on environmental monitoring of contaminants using cryptogams. It covers a wide range of contaminants, being specifically focused on persistent, bioaccumulative and toxic compounds. Topics in this session include but are not limited to: new methods, data quality evaluation, source apportionment, and spatial and temporal patterns of environmental contamination.