“…Correlations between such lichen use and the active methods have been reported (Mlakar et al, 2011). Bio-monitors include types of vegetation that absorb Hg from the atmosphere (Zhou & Obrist, 2021), such as mosses (Nickel et al, 2018;Szczepaniak & Biziuk, 2003)and lichens (Abas, 2021;Çobanoğlu Özyiğitoğlu, 2020). Bio-monitors are notable in the present context for the following reasons:…”