Sources and Ecological Risks of Heavy Metals in Soils Under Different Land Uses in Bangladesh

Islam, Md. Saiful; Ahmed, Md. Kawser; Habibullah-Al-Mamun, Md.; Islam, Shah Md. Asraful

doi:10.1016/s1002-0160(17)60394-1

Cited by 63 publications

(28 citation statements)

References 67 publications

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“…Gazipur District is a suburban industrial area located 50 km north of the capital, Dhaka. The area covers 1806 km 2 , with a population of 3,403,912 [12]. A multi-industrial zone has recently been developed in the district.…”

Section: Study Areamentioning

confidence: 99%

“…In developing countries, heavy metal contamination of farmland is occurring, which is a severe environmental problem due to the toxicity of heavy metals [1]. In recent decades, the concentrations of heavy metals and metalloids in irrigation water, soil, and vegetables have been greatly increasing on farmland due to anthropogenic activities including the expansion of industrialization and urbanization [2]. Irrigation water contaminated with industrial wastewater has caused significant heavy metal contamination in soils and crops.…”

Section: Introductionmentioning

confidence: 99%

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Heavy Metal Contamination of Irrigation Water, Soil, and Vegetables and the Difference between Dry and Wet Seasons Near a Multi-Industry Zone in Bangladesh

Ahmed

Matsumoto

Ozaki

et al. 2019

Water

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Heavy metal (Cr, Cu, Zn, As, Cd, and Pb) contamination in irrigation water, soil, and vegetables was investigated in farmland adjacent to a multi-industry zone in Bangladesh in dry and wet seasons. In the zone, many factories release wastewater into nearby irrigation canals, and vegetables cultivated with this water could be a major food chain route for human exposure. In the irrigation water and vegetables, heavy metal concentrations exceeded permissible levels in the two seasons, but this was not the case in soil. Zn had the highest concentration, and Cd had the lowest concentration in irrigation water, soil, and vegetables. All heavy metal concentrations were found to be lower in the wet than in the dry season, which is due to the dilution of water by rainfall, lower absorption of heavy metals from the diluted irrigation water, and heavy metal absorption from low concentrated irrigation water and/or soil. The cluster analysis data of irrigation water, soil, and vegetables revealed that the heavy metals in vegetables were considered to be absorbed from irrigation water in the wet season and from soil in the dry season. In the dry season, the high heavy metal concentrations in vegetables might be caused by a high bioconcentration factor (mostly > 20%).

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Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heavy Metal Contamination of Irrigation Water, Soil, and Vegetables and the Difference between Dry and Wet Seasons Near a Multi-Industry Zone in Bangladesh

Ahmed

Matsumoto

Ozaki

et al. 2019

Water

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“…Meanwhile, anthropogenic sources, such as industrial activities, agricultural practices, and vehicle exhaust, can also increase the contents of HMs [18,19,20]. In urban areas, HMs may originate from various sources, such as industrial activities, mining, smelting, power generation, fossil fuel combustion, and waste disposal [21,22,23]. Anthropogenic input of HMs into soils may cause the deterioration of soil function and change soil’s physical/chemical properties, which might create other environmental problems [24].…”

Section: Introductionmentioning

confidence: 99%

Distribution and Contamination Assessment of Soil Heavy Metals in the Jiulongjiang River Catchment, Southeast China

Zhang

Han

et al. 2019

IJERPH

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A total of 63 soil samples were collected from three soil profiles (yellow soil, red loam, red soil) from Jiulongjiang river catchment to investigate the distribution, controlling factors, and toxic risks of heavy metals, including Cr, Mn, Fe, Cu, Zn, Cd, Pb, and Ni. The results showed that Cr and Cd in soils were enriched. The relationships between heavy metals and soil properties were assessed by principal component analysis. The results indicated that soil organic matter (SOM) played a fundamental role in controlling Cd and Pb in yellow soil and red loam sites. The Cd was significantly correlated with Pb and Cu, and Cr, Zn, Ni, Fe displayed strong correlations with each other, however, no statistical correlation was found between Cd and Cr. The enrichment factor and geoaccumulation index analyses showed that the soils in the study area were contaminated by Cd. Potential ecological risk analyses indicated that Cd posed a considerable ecological risk in yellow soils, and posed a moderate ecological risk in red loams and red soils.

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“…Ecological risks are of concern due to accumulation of heavy metals in the soil which compromises the soil ecosystem integrity (Islam et al, 2017), and consequently calls for more ecological risk assessment (Islam et al, 2017). Food that is contaminated with heavy metals is hazardous and can cause toxic effects on health of an ecosystem as well as humans (Balkhair & Ashraf, 2016;Alghobar & Suresha, 2017).…”

mentioning

confidence: 99%

Assessment of soil metals status in parts of Rivers State, Nigeria

Wanjala¹,

Odokuma²,

Etela³

et al. 2019

Journal of Applied Sciences and Environmental Management

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Sources and Ecological Risks of Heavy Metals in Soils Under Different Land Uses in Bangladesh

Cited by 63 publications

References 67 publications

Heavy Metal Contamination of Irrigation Water, Soil, and Vegetables and the Difference between Dry and Wet Seasons Near a Multi-Industry Zone in Bangladesh

Heavy Metal Contamination of Irrigation Water, Soil, and Vegetables and the Difference between Dry and Wet Seasons Near a Multi-Industry Zone in Bangladesh

Distribution and Contamination Assessment of Soil Heavy Metals in the Jiulongjiang River Catchment, Southeast China

Assessment of soil metals status in parts of Rivers State, Nigeria

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