Occurrence of heavy metals Cu, Pb, and Cd in Rhizophora apiculata and Sonneratia caseolaris in the coastal area of Subang, West Java, Indonesia

Abstract. Hewindati YT, Suhardi DA, Zuhairi FR, Diki, Yuliana E. 2022. Occurrence of heavy metals Cu, Pb, and Cd in Rhizophora apiculata Sonneratia caseolaris the coastal area Subang, West Java, Indonesia. Biodiversitas 23: 6471-6479. The high urbanization areas is one causes mangrove ecosystems experiencing pressure due to water pollution by anthropogenic activities, especially through pollution. As vegetation grows transitional areas, mangroves have a different structure physiology from plants land area, so they resistance metal measurement was carried out on content Cadmium (Cd), Cuprum (Cu), Plumbum (Pb) Java. Our study aimed evaluate characteristics found roots, leaves, trunks species Blume (L.) Engler. Sampling conducted rivers at three locations: Langensari, Blanakan, estuary area. concentration each organ measured using Atomic Absorption Spectrophotometry (AAS). Multiple Factor Analysis (MFA) technique used obtain more detailed description accumulation pattern metals. mapping two-dimensional plot containing 18 observation samples, nine variable combinations organs, location observations plant species. Both had absorption but with characteristics. S. determined Cu total contribution 60.3%. Meanwhile, R. significantly contributed determining Pb entire its 15.5%. However, highest average leaves Blanakan which 16.054 mg/kg 12.769 mg/kg, respectively.