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

Abstract

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.

Heavy metal concentrations and its impact on soil microbial and enzyme activities in agricultural lands around ship yards in Chattogram, Bangladesh

“…Geo-accumulation index (I geo ) is considered an effective tool to characterize the level of pollution from soil from the hazardous element (Proshad et al, 2018). I geo was originally introduced and defined by Muller (1969).…”

Assessment of environmental pollution of heavy metals deposited on the leaves of trees at Yazd bus terminals

“…The second factor explains 24.10% of the total variance which includes Cd, Co, Mn and Ni. Proshad et al (2018) used the PCA method and analyzed the soil of industrial areas in Bangladesh. They divided the measured metals into three separate clusters: 1) Ni, Pb, and Cu.…”

“…It doesn't include Cr metal, which was in the moderate degree of enrichment regarding environmental protection. Proshad et al (2018) used enrichment indices to calculate contamination load in Tangail ground, located in Bangladesh. The results showed that agricultural soils were heavily contaminated with hazardous elements.…”

Quantitative measurement of toxic metals and assessment of health risk in agricultural products food from Markazi Province of Iran

“…The excessive entry of heavy metals and synthetic chemicals into the studied soils may lead to deterioration of the soil biology, thereby altering the physicochemical properties of the soil and causing other environmental problems. Increasing air, water, and soil pollution caused by traffic jams, mines, various manufacturing industries, and industrial waste is a serious problem that negatively affects public health (Islam et al 2020;Proshad et al 2018;Hani and Karimineja 2010b;Ghiyasi et al 2010b).…”

“…(Sarkar and Paul 2016). Also, excessive entry of heavy metals and synthetic chemicals into the studied soils may lead to deterioration of the soil biology, thereby altering the physicochemical properties of the soil and causing other environmental problems (Qu et al 2012;Salama and Radwan 2005;Islam et al 2020;Proshad et al 2018;Solgi et al 2014;Solgi et al 2012;Ghasemidehkordi et al 2018a;Ghiyasi et al 2010a;Hani and Karimineja 2010a). Pruvot et al (2006) showed that the soil near the smelter is more contaminated than the reference soil.…”