Heavy metals in sediments of an urban river at the vicinity of tannery industries in Bangladesh: a preliminary study for ecological and human health risk

Mir Md Mozammal Hoque, Avilash Sarker, Md Eusuf Sarker, Md Humayun Kabir, Farah Tasneem Ahmed, Marjana Yeasmin, Md Saiful Islam*, Abubakr M. Idris

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This study was conducted to measure the concentration of heavy metals and to examine their allied ecological and health risk from the sediments of an urban river adjacent to the tannery industrial park. In this study, atomic absorption spectrophotometer was used to quantify the concentration of lead (Pb), cadmium (Cd), copper (Cu), chromium (Cr), iron (Fe), manganese (Mn), nickel (Ni) and zinc (Zn) in sediments. The mean concentrations of Pb, Cd, Cu, Cr, Fe, Mn, Ni and Zn in sediments were 15.4, 0.73, 6.8, 64.7, 305.2, 19.9, 18.2 and 7.3 mg/kg, respectively. According to the Sediment Quality Guideline, sediments from Dhaleshwari River were not polluted by Pb, Cu, Mn and Zn but moderately polluted by Cd and Ni and heavily polluted with Cr and Fe. Moreover, sediment contamination factor (CF), pollution load index (PLI) and geo-accumulation index (I geo) demonstrated that sediments from the study river were heavily contaminated by Cd and Cr. Furthermore, potential ecological risk showed high risk of Cd and Cr. Hazard quotient (HQ) and Hazard index (HI) values showed heavily contaminated for Cr and moderately contaminated for Pb for both adult and children. In view of the potential non-carcinogenic human health risk showed heavily contaminated for Cr and moderately contaminated for Pb in this study area.

Original languageEnglish
Pages (from-to)7909-7927
Number of pages15
JournalInternational Journal of Environmental Analytical Chemistry
Volume103
Issue number19
Early online date23 Sept 2021
DOIs
Publication statusPublished - 26 Dec 2023

Keywords

  • Sediment
  • concentration
  • ecological risk
  • health risk
  • heavy metals
  • tannery area

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