KANDUNGAN BEBERAPA POLUTAN DAN KADAR DEBU PADA DAUN KETAPANG (Terminalia catappa L.) DI KOTA SAMARINDA PROVINSI KALIMANTAN TIMUR: The Pollutant and Dust Contents in the Leaves of Terminalia catappa L. in Samarinda City East Kalimantan Province. PERENNIAL, v. 17, n. 2, p. 55–61, 15 Nov.2021.