Effectiveness of Angsana (Pterocarpus indicus) and Mahogany (Swietenia mahagoni) Plants in the Sorption of Lead (Pb) and Particulates on Sudirman Road, Pekanbaru, Riau, Indonesia Journal title: Engineering and Technology Journal Authors: CiciElenda , Paramita Dwi Sukmawati , Angge Dhevi Warisaura, Subject(s): Engineering, Technology