Kabir, Md. Humayun, Miazi, Samir Ahmed, Shammi, Rifat Shahid, Meghla, Nowara Tamanna, Islam, Md. Sirajul, Tusher, Tanmoy Roy. (1404). Heavy Metal Contamination in Agricultural Soils of Central Bangladesh: Implications for Ecological Risk and Food Security. , 12(1), 102-114. doi: 10.22059/poll.2025.394768.2916
Md. Humayun Kabir; Samir Ahmed Miazi; Rifat Shahid Shammi; Nowara Tamanna Meghla; Md. Sirajul Islam; Tanmoy Roy Tusher. "Heavy Metal Contamination in Agricultural Soils of Central Bangladesh: Implications for Ecological Risk and Food Security". , 12, 1, 1404, 102-114. doi: 10.22059/poll.2025.394768.2916
Kabir, Md. Humayun, Miazi, Samir Ahmed, Shammi, Rifat Shahid, Meghla, Nowara Tamanna, Islam, Md. Sirajul, Tusher, Tanmoy Roy. (1404). 'Heavy Metal Contamination in Agricultural Soils of Central Bangladesh: Implications for Ecological Risk and Food Security', , 12(1), pp. 102-114. doi: 10.22059/poll.2025.394768.2916
Kabir, Md. Humayun, Miazi, Samir Ahmed, Shammi, Rifat Shahid, Meghla, Nowara Tamanna, Islam, Md. Sirajul, Tusher, Tanmoy Roy. Heavy Metal Contamination in Agricultural Soils of Central Bangladesh: Implications for Ecological Risk and Food Security. , 1404; 12(1): 102-114. doi: 10.22059/poll.2025.394768.2916

Heavy Metal Contamination in Agricultural Soils of Central Bangladesh: Implications for Ecological Risk and Food Security

Pollution
دوره 12، شماره 1، بهار 2026، صفحه 102-114    اصل مقاله (1.8 M)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/poll.2025.394768.2916
نویسندگان
Md. Humayun Kabir* ؛ Samir Ahmed Miazi؛ Rifat Shahid Shammi؛ Nowara Tamanna Meghla؛ Md. Sirajul Islam؛ Tanmoy Roy Tusher
Department of Environmental Science and Resource Management, Mawlana Bhashani Science and Technology University, Santosh, Tangail-1902, Bangladesh
چکیده
This study assessed the concentrations, distribution, sources and ecological risks of heavy metals in agricultural soils near industrial zones in Gazipur, Bangladesh. Thirty soil samples were collected in mid-January 2024 and analyzed for six heavy metals (Cr, Ni, Cu, As, Cd, and Pb) using inductively coupled plasma mass spectrometry (ICP-MS). Average concentrations (mg/kg) were: Cr (7.47±1.93), Pb (6.88±2.30), Cd (1.95±0.60), Cu (11.64±2.61), As (2.55±0.85) and Ni (17.87±5.08). All metals, except Cd, were below the permissible limits set by Dutch, Canadian, and Australian soil quality guidelines. Multivariate statistical analyses suggested mixed lithogenic and anthropogenic origins of heavy metals, with industrial activities being the dominant source. Contamination factors (CF), contamination degree (CD) geo-accumulation index (Igeo), enrichment factors (EF) and pollution load index (PLI) analysis indicated safe levels for most metals, but Cd posed significant contamination and ecological concern. The potential ecological risk index (PER) showed low to moderate risk, though some sampling sites exhibited high risk due to Cd. These findings provide critical insight for policymakers to mitigate soil contamination and protect environmental and human health. 
کلیدواژه‌ها
Soils؛ Heavy metal؛ Risk assessment؛ Pollution indices؛ Bangladesh
مراجع
آمار
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