Distributions and pollution assessment of heavy metals Pb, Cd and Cr in the water system of Kendari Bay, Indonesia

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Armid, A.^1 ; Shinjo, R.^2 ; Ruslan, R.^3 ; Fahmiati^1

Department of Chemistry, Faculty of Science, Halu Oleo University, Anduonohu Kendari

93232, Indonesia^1

Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa

903-0213, Japan^2

Department of Mathematics, Faculty of Science, Halu Oleo University, Anduonohu Kendari

93232, Indonesia^3

关键词: Coastal waters;    Inductively coupled plasma mass spectrometries (ICPMS);    Marine environment;    Metals concentrations;    Pb pollution;    Pollution assessment;    Sampling points;    Water samples;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012002/pdf
DOI  :  10.1088/1757-899X/172/1/012002

来源: IOP

【 摘 要 】

The concentrations of heavy metals Pb, Cd and Cr in the coastal waters of Kendari Bay were analyzed to assess their pollution status. Water samples from 32 sampling points were analyzed for dissolved heavy metals concentrations by using inductively coupled plasma mass spectrometry (ICP-MS). The RSD(%) of each metal was accounted to analyze the diversity of the heavy metals among 32 sampling points. The results demonstrate that the dissolved heavy metal Pb had the highest concentrations (0.009 to 0.549 μg/L, average = 0.210 μg/L) followed by Cr (0.085 to 0.386 μg/L, average = 0.149 μg/L), and Cd (0.001 to 0.015 μg/L, average = 0.008 μg/L). Based on the the RSD values (Pb = 87.8%, Cd = 45.2% and Cr = 41.3%), it is suggested that the antropogenic activities controls the high diversity of concentrations for heavy metal Pb relative to those of Cd and Cr. Comparing the data with the mean oceanic concentrations, only the concentrations of Pb exceed the mean oceanic level (210 folds). Therefore, the water system of Kendari Bay is severely polluted with heavy metal Pb. More management and treatment should be introduced to protect the marine environment in the study area, especially from Pb pollution.