Sediment Heavy Metal Pollution Assessment in Changwang and Wuyuan Rivers in Hainan Island, China

Heavy metal pollution may pose a significant threat to aquatic ecosystems. To assess heavy pollution, sediment samples were collected from Changwang and Wuyuan Rivers between June December 2019. An inductively coupled plasma mass spectrometer was used analyze the concentrations of As, Cd, Co, Cr, Cu, Mn, Ni, Pb, Zn. The results revealed that River had significantly high Cr (240.70 mg kg−1), Co (36.02 Ni (108.70 Cu (36.61 whereas As (7.55 kg−1) elevated in River. In addition, Pb Zn below China’s quality standard limits (GB 3838-2002), but level exceeded limit. However, probable effect (PEC) thus cause toxic effects. contamination factor, geo-accumulation index, modified degree experienced considerable very while low moderate pollution. load index demonstrated rivers polluted during all seasons. Additionally, risk showed risks Wuyuan, respectively. ecological ranked as Cd > Mn Multivariate analyses categorized metals into two groups based on their potential sources: group one included Zn, contained Pb. study provides valuable data which needs improvement for studied rivers. can be manage riverine quality.