Assessment of heavy metals with ecological risk of soils in the industrial vicinity of Tangail district, Bangladesh


  • Ram Proshad Department of Soil Science, Patuakhali Science and Technology University-8602, Bangladesh
  • Md. Saiful Islam Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh
  • Tapos Kormoker Department of Emergency Management, Patuakhali Science and Technology University, Dumki, Patuakhali-8602, Bangladesh



Heavy Metal, Potential Ecological Risk, Industrial Vicinity, Bangladesh


This study was conducted to assess the ecological risk of heavy metals in soils collected from the industrial vicinity of Tangail district in Bangladesh. In this study, the levels of six heavy metals namely chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd), and lead (Pb) in 15 sampling sites around the industrial vicinity of Tangail district in Bangladesh were assessed. The mean concentration of Cr, Ni, Cu, As, Cd and Pb in studied soils were 11.56, 23.92, 37.27, 6.11, 2.01, and 17.46 mg/kg, respectively. Certain indices, including the enrichment factor (EF), contamination factor (Cif), geoaccumulation index (Igeo), pollution load index (PLI), toxic unit analysis, and principal component analysis (PCA) were used to assess the ecological risk. The enrichment factor of all the studied metals for all sampling sites were in the descending order of Cd > Cu > As > Pb >Ni > Cr. The contamination factor values revealed that the studied soils were highly impacted by Cd. The pollution load index (PLI) values of Cd were higher than 1, indicating the progressive deterioration of soil due to Cd contamination. In the context of potential ecological risk (PER), soils from all sampling sites showed moderate to very high potential ecological risk.

Author Biography

Ram Proshad, Department of Soil Science, Patuakhali Science and Technology University-8602, Bangladesh

Environmental pollution specially heavy metal toxicity in environmental media (Soil, water, plant etc.)

MS student, Department of Soil Science, Patuakhali Science and Technology University, Bangladesh


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