出版社：Thai Society of Higher Eduction Institutes on Environment
摘要：In Malaysia, air pollution still measured using instrumental approach. Hence, this study used lichenas biological indicator to assess air pollution. Study has been conducted in four different locationswhich are Rumah Tumbuhan, UKM (Control station), Section 51 Industrial Area, Petaling Jaya,Spring Crest Industrial Area, Batu Caves and Nilai Industrial Area, Negeri Sembilan. This studyused lichen Dirinaria sp.; an endemic species of tropical country; as the biological indicator. Heavymetal concentrations in lichen samples been analyzed using ICP-OES and number of motor vehicleswere recorded for every sampling location. One way ANOVA and Pearson’s correlation used totest the relationship between heavy metals and sampling locations also relationship between heavymetals and motor vehicles. Result shows that heavy metals such as Cr, Fe, Cu, Ni, Zn and Pb havebeen recorded. One way ANOVA test shows there is significant relationship between heavy metalsand sampling locations where F is 2.7728 and P value is 0.0001 (99% significant level). Pearson’scorrelation also shows the relationships between all recorded heavy metals with number of motorvehicles where all the P value is < 0.05. This study found that lichen can be used as the alternativeapproach in determining the heavy metals content in the environment and it also cheaper andtime saving rather than using instrumental approach.
关键词：Heavy metals; Lichen; Air pollution; Environment; Urban ecosystem
