Assessment of Ecological Risk Through Toxic Heavy Metal Contamination in Konabari Terrace Industrial Area of Gazipur, Bangladesh

DOI IR (HANDLE) Open Access
  • AHMED Minhaz
    Department of Agroforestry and Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University
  • RAHMAN Abiar
    Department of Agroforestry and Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University
  • HOQUE Muhammad Ziaul
    Department of Agricultural Extension and Rural Development, Bangabandhu Sheikh Mujibur Rahman Agricultural University
  • HOSSAIN Md. Shamim
    Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University
  • MATSUMOTO Masaru
    Institute of Tropical Agriculture, Kyushu University

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Description

The contamination of heavy metal (Cr, Cu, Cd, Pb, and As) in soil of Konabari industrial area of Bangladesh was assessed. Several industries at this study site released effluent into neighboring irrigation canals and lakes, contaminating the land. The study site’s polluted soil/land from wastewater irrigation could be a major source of pollution. Cr, Cu, and Pb were the most common contaminants in the research area, in the order Cr>Cu>Pb>As>Cd. According to the geo–accumulation index (Igeo), the study region was classified as uncontaminated to moderately contaminated with As followed by Pb, Cu, Cd, and Cr. The pollution load index (PLI) indicated that the study region was slightly/moderately contaminated, while the contamination factor (CF) showed that contamination was moderate. The study region had a moderate ecological risk based on the potential ecological risk index (RI). According to the findings of this study, the study region was generally moderately contaminated with heavy metals, posing a moderate level of environmental risk.

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