Deciphering the origin of Cu, Pb and Zn contamination in school dust and soil of Dhaka, a megacity in Bangladesh

Rahman, M. Safiur; Kumar, Shailendra; Nasiruddin, .; Saha, Narottam

doi:10.1007/s11356-021-13565-7

Cited by 20 publications

(9 citation statements)

References 85 publications

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“…al., 2016). Therefore, excessive Pb in sediments might have adverse impact on ecological health(Rahman et al, 2014;Rahman et al, 2021). The average Pb concentration for this study was found to be higher than the Pb in surface soils (32 mg kg −1 ) worldwide average (Kabata-Pendias and Pendias, 2001) but was in line for Pb concentration (80 to 510 mg kg −1 ) in gold mine tailing(Ogola et la., 2002).…”

supporting

confidence: 49%

“…The average Zn concentration in Wainivesi River waters found to be below than the threshold values set by the ECR (1997), WHO (1996), BIS (2012), EU (2003), EPA (2001) and MHC (2007). This nding suggested that the surface water in the study area might be free form Zn contamination as well there is no coal combustion and waste incineration in the study area, which might be prime sources of Zn in surface water/environment (Rahman et al, 2021).…”

Section: Characteristics Of Potentially Toxic Elements In Sediment and Watermentioning

confidence: 84%

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Potentially toxic elemental contamination in Wainivesi River, Fiji impacted by gold-mining activities using chemometric tools and SOM analysis

Kumar

Islam

Hasanuzzaman

et al. 2022

Environ Sci Pollut Res

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Potentially toxic elements (PTEs) contamination in Wainivesi River, Fiji triggered by gold-mining activities is a major public health concern deserving attention. However, chemometric approaches and pattern recognition of PTEs in surface water and sediment are yet hardly studied in Paci c Island countries like Fijin urban River. In our study, twenty-four sediment and eight water sampling sites from the Wainivesi River, Fiji were explored to evaluate the spatial pattern, eco-environmental pollution, and source apportionment of PTEs. This analysis was done using an integrated approach of self-organizing map (SOM), principle component analysis (PCA), hierarchical cluster analysis (HCA), and indexical approaches. The PTEs average concentration is decreasing order of Fe > Pb > Zn > Ni > Cr > Cu > Mn > Co > Cd for water and Fe > Zn > Pb > Mn > Cr > Ni > Cu > Co > Cd for sediment, respectively. Outcomes of eco-environmental indices including contamination and enrichment factors, and geo-accumulation index differed spatially indicated that majority of the sediment sites were highly polluted by Zn, Cd, and Ni. Cd and Ni contents can cause both ecological and human health risks. According to PCA, two sources such as point and geogenic sources for sediment and also two sources including weathering of rock-water and anthropogenic sources of PTEs for water were identi ed in the study area. The SOM analysis identi ed three spatial patterns e.g., Cr-Co-Zn-Mn, Fe-Cd and Ni-Pb-Cu in water and Zn-Cd-Cu-Mn, Cr-Ni and Fe, Co-Pb in sediment. Spatial distribution of entropy water quality index values depicted that northern and northwestern areas possess 'poor' to 'extremely-poor' quality water. The entropy weights indicated Zn, Cd and Cu as the major pollutants in deteriorating the water quality. Our nding provides a baseline database with eco-environmental and health risk measures for the Wainivesi river contamination.

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supporting

confidence: 49%

Section: Characteristics Of Potentially Toxic Elements In Sediment and Watermentioning

confidence: 84%

Potentially toxic elemental contamination in Wainivesi River, Fiji impacted by gold-mining activities using chemometric tools and SOM analysis

Kumar

Islam

Hasanuzzaman

et al. 2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…The average Zn concentration in Wainivesi River waters found to be below than the threshold values set by the ECR (1997),WHO (1996), BIS (2012), EU (2003), EPA (2001) andMHC (2007). This nding suggested that the surface water in the study area might be free form Zn contamination as well there is no coal combustion and waste incineration in the study area, which might be prime sources of Zn in surface water/environment(Rahman et al, 2021).…”

mentioning

confidence: 84%

Potentially Toxic Elemental Contamination in Wainivesi River, Fiji Impacted by Gold-mining Activities using Chemometric Tools and SOM Analysis

Kumar¹,

Islam

Hasanuzzaman

et al. 2021

Preprint

Self Cite

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Potentially toxic elements (PTEs) contamination in Wainivesi River, Fiji triggered by gold-mining activities is a major public health concern deserving attention. However, chemometric approaches and pattern recognition of PTEs in surface water and sediment are yet hardly studied in Pacific Island countries like Fijin urban River. In our study, twenty-four sediment and eight water sampling sites from the Wainivesi River, Fiji were explored to evaluate the spatial pattern, eco-environmental pollution, and source apportionment of PTEs. This analysis was done using an integrated approach of self-organizing map (SOM), principle component analysis (PCA), hierarchical cluster analysis (HCA), and indexical approaches. The PTEs average concentration is decreasing order of Fe > Pb > Zn > Ni > Cr > Cu > Mn > Co > Cd for water and Fe > Zn > Pb > Mn > Cr > Ni > Cu > Co > Cd for sediment, respectively. Outcomes of eco-environmental indices including contamination and enrichment factors, and geo-accumulation index differed spatially indicated that majority of the sediment sites were highly polluted by Zn, Cd, and Ni. Cd and Ni contents can cause both ecological and human health risks. According to PCA, two sources such as point and geogenic sources for sediment and also two sources including weathering of rock-water and anthropogenic sources of PTEs for water were identified in the study area. The SOM analysis identified three spatial patterns e.g., Cr-Co-Zn-Mn, Fe-Cd and Ni-Pb-Cu in water and Zn-Cd-Cu-Mn, Cr-Ni and Fe, Co-Pb in sediment. Spatial distribution of entropy water quality index values depicted that northern and northwestern areas possess ‘poor’ to ‘extremely-poor’ quality water. The entropy weights indicated Zn, Cd and Cu as the major pollutants in deteriorating the water quality. Our finding provides a baseline database with eco-environmental and health risk measures for the Wainivesi river contamination.

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“…Similarly, the topsoilderived heavy metals and their potential exposure to health risks were reported in central China (Li et al 2020a, b), where the untreated discharge from the factory was blamed for the potential source of heavy metal to the nearby arable soils. However, recent studies have noticed the considerable concentration of detected heavy metals in the school dust of Dhaka City and indoor dust samples derived from the Dhaka EPZ area of Bangladesh (Rahman et al 2021a(Rahman et al , 2021b, which are the critical risk during unconscious inhalation. Thus, in Bangladesh, there is an urgent need to expedite the potential airborne heavy metals, which may pose a hidden threat to critical respiratory complexities during this COVID 19 pandemic.…”

Section: Uncertainty Of Health Risks and Legislation Associated With Heavy Metals Contamination In Bangladeshmentioning

confidence: 99%

Heavy metals contamination and associated health risks in food webs—a review focuses on food safety and environmental sustainability in Bangladesh

Sarker

Kim

Islam

et al. 2021

Environ Sci Pollut Res

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Deciphering the origin of Cu, Pb and Zn contamination in school dust and soil of Dhaka, a megacity in Bangladesh

Cited by 20 publications

References 85 publications

Potentially toxic elemental contamination in Wainivesi River, Fiji impacted by gold-mining activities using chemometric tools and SOM analysis

Potentially toxic elemental contamination in Wainivesi River, Fiji impacted by gold-mining activities using chemometric tools and SOM analysis

Potentially Toxic Elemental Contamination in Wainivesi River, Fiji Impacted by Gold-mining Activities using Chemometric Tools and SOM Analysis

Heavy metals contamination and associated health risks in food webs—a review focuses on food safety and environmental sustainability in Bangladesh

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