This is a 51 page study on air pollution in urban areas by comparing the amounts of epiphytic lichen present at both T.O Fuller Park and Shelby Forest. This study shows the use of monitoring such environmental impacts.
Farrell, Megan V., "Examining Pollution And Forest Health: An Application of Lichens As Bioindicators And Sentinal-5p Tropomi in Urban State Parks in Shelby County" (2022). Documents. 2.