Comparative Toxicity of Heavy Metals Cd, Zn, and Pb to Three Acrocarpous Moss Species using Chlorophyll Contents

Mosses have often been used for biomonitoring because of their diversity habitats, structural simplicity, and rapid multiplication rate. This research aimed to study the tolerance heavy metal in 3 species terricolous mosses i.e., Barbula consanguinea, Hyophila apiculata, H. involuta. The gametophores were immersed at 4 concentrations each metals Cd, Pb, Zn as well controls with no metal. After 10, 20, 30 days exposure, extracted chlorophyll-a ethanol. was analyzed by spectrophotometer 664 nm. results revealed that amount all decreased increasing Zn. degree toxicity Cd > Pb By comparing ratio metal-treated control mosses, against involuta ≥ apiculata B. consanguinea. Possibly, can be contaminated environments future. HIGHLIGHTS are pollution habitat diversity, growth Three Thai treated showed a trend decrease content Among three moss species, may future GRAPHICAL ABSTRACT