TI - Monitoring of heavy metal pollution by using populus nigra and cedrus libani AU - ÇİFTÇİ, H. AU - ER ÇALIÅžKAN, Ã. AU - ASLANHAN, E. AU - AKTOKLU, E. SO - Sigma Journal of Engineering and Natural Sciences 2021;39:367-373. DO - 10.14744/sigma.2021.00025