AKUMULASI TIMBAL (Pb) DAN STRUKTUR DAUN ANGSANA (Pterocarpus indicus Willd ) SEBAGAI TUMBUHAN PENEDUH JALAN DI KOTA BANJARMASIN

Abstract

Angsana is a roadside plant a many planted   in Banjarmasin. Although it has no broad leaves but angsana has compound leaves with enough dense canopy that is expected to be  agents for the bioremediation of pollutans, especially metals Pb. This  research  aims to determine the potential of plants angsana to absorb and accumulate heavy metals Pb, also to know the structure of the leaf  angsana related to its function as a roadside plant. The method used is descriptive that is observations directly to the field with determine the 3 research sites namely  A. Yani street,   Belitung street and  Kapten  Tendean street. From each street is selected 5 angsana tree. Leaf samples taken from each tree for its Pb content was analyzed using AAS (Atomic  Absorption  Spectrophotometery)  and total chlorophyll  were analyzed using aspectrophotometer  (UV-vis). Measured  leaf structure includes   leaf area and number of stomata. The results  showed that the leaf angsana  growing  at  A.Yani street Belitung street and  Kapten Tendean street undetectable levels of Pb metal, while the total amount of chlorophyll ranged  70.4673 mg/l - 93.9153 mg / l.The structure of leaf  surface angsana  slippery,  with leaf area ranged from 255.72cm2-314.41 cm2  and the number of stomata ranged from 304 pieces -384 pieces.

Key words: Lead (Pb), angsana, roadside