Assessment of soil and groundwater contamination at a former Tannery district in Dhaka, Bangladesh

Alam, Shahin; Han, Bangshuai; Mizan, Al; Pichtel, John

doi:10.1007/s10653-019-00457-6

Cited by 39 publications

(15 citation statements)

References 23 publications

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“…It can be assumed that the subsoil is considerably less influenced by contamination processes than the topsoil. In general, it is admitted in literature that the contaminants are found in the topsoil and beyond this layer they can directly reach the groundwater [16]. The heavy metal concentrations varied with distances away from the landfill.…”

Section: Resultsmentioning

confidence: 99%

Heavy Metals Distribution in Soil at Different Depths and Radiuses around Landfills in Districts of Nyékonakpoè, Akodesséwa and Amoutivé in Lomé City

Yandi

Mawussi

Nenonene

et al. 2021

AJAS

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This study aims to provide baseline data about soil contamination by some heavy metals at different depths around landfills in areas at high risk of groundwater contamination. Soil samples were taken in three replicates at depth of 0 – 20 cm, 20 – 40 cm and 40 - 60 cm in the radiuses of 0 to 10 m, 10 to 20 m and 20 to 30 m around landfills. In all, 81 homogenized composite soil samples were collected. The heavy metals were measured in soil samples by atomic absorption spectrophotometer. The results show that the concentration of mercury (0.03 – 0.29 mg kg-1), cadmium (0.04 – 0.69 mg kg-1), arsenic (0.05 – 2.30 mg kg-1) and nickel (0.05 – 2.35 mg kg-1) in analyzed soil samples were lower than the limit values set by WHO, Finland and Dutch environment ministries. However, lead concentrations (90.15 – 129.14 mg kg-1) in topsoil in vicinity of landfills in Amoutivé and Akodesséwa were above reference values set by WHO, Finland and Dutch environment ministries. As the heavy metals may be leached to reach groundwater, the landfills management must be great concern to municipal authorities. The frequent monitoring of the quality of soil and groundwater will be necessary to follow the level environmental contamination by heavy metals around landfills and the possible initiate remedial measures.

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Section: Resultsmentioning

confidence: 99%

Heavy Metals Distribution in Soil at Different Depths and Radiuses around Landfills in Districts of Nyékonakpoè, Akodesséwa and Amoutivé in Lomé City

Yandi

Mawussi

Nenonene

et al. 2021

AJAS

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“…A wide range of chemicals is required for leather processing; those of greatest concern are chromium sulfate, tannins, pigments, dyes, lime, salt of ammonia, bactericides, and fungicides [12][13][14]. During leather processing at the Hazaribagh tanning industries, large quantities of solid and liquid wastes were generated.…”

Section: Introductionmentioning

confidence: 99%

“…Few studies, however, have assessed heavy metal content in plants occurring on the embankment or the effluent discharge channels to the river Buriganga [22,23]. Earlier work has highlighted soil and groundwater pollution within the tannery establishment [11,13,15]. However, contact with contaminated soil may pose direct risks to human health, and a holistic picture of the risks of the area is yet to be developed.…”

Section: Introductionmentioning

confidence: 99%

“…However, contact with contaminated soil may pose direct risks to human health, and a holistic picture of the risks of the area is yet to be developed. This area has been earmarked for residential development with green spaces, along with medical and educational institutions and other facilities [13]. Those living and working in this area may experience accidental exposure to heavy metals via ingestion, inhalation, or dermal contact.…”

Section: Introductionmentioning

confidence: 99%

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Environmental and health risks of metal-contaminated soil in the former tannery area of Hazaribagh, Dhaka

et al. 2020

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Soil and plant samples collected from Hazaribagh, the former tannery area in Dhaka, Bangladesh, were analyzed for heavy metals (Cr, Pb, Ni, Zn, Cd, and Cu). The pollution and health risks of the metals were assessed with commonly used indicators. The mean soil Cr concentration was 4321 mg/kg (range 294-23,148 mg/kg). Most sites had a moderate to high degree of contamination and were classified as extremely polluted (Pollution Load Index > 1). The non-carcinogenic hazard index was greater than 1 for Pb and Cr for both children and adults, which indicates considerable non-cancer health risk. The combined cancer risks for Pb and Cr exceeded the allowable range of 1 × 10 −6-1 × 10 −4 for most sites (8 out of 11 sites in the case of adults, all sites in the case of children) with Cr being the dominant contributor and oral ingestion the primary pathway. The cancer and non-cancer risks for children were 26-and 3-fold higher, respectively, than for adults. Among all heavy metals, Pb and Zn were the most susceptible to leaching and becoming mobilized in groundwater. Concentrations of Pb, Cr, and Zn in edible parts of vine spinach (Basella alba) exceeded safe limits. However, Pb and Cu showed significant accumulation in plants (Mean Transfer Factor of 1.064 and 0.94, respectively, for Pb and Cu), while Cr exhibited relatively lower bioavailability. The spatial distribution of heavy metal contamination and associated risks presented in this study will allow policymakers to pinpoint areas of intervention for remediation.

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“…According to the Export Promotion Bureau data, for the fiscal year of 2016-2017, total leather exports were USD 116.73 million (Al-Muti, 2017). Approximately 90% of the exported leather products from Bangladesh originate in the Hazaribagh leather processing industry in the southwestern part of Dhaka, the capital of Bangladesh (Alam et al, 2020). There are approximately 220 tanneries located in the Hazaribagh area (Paul et al, 2013), ranging in size from small operations with a few workers to larger ones that employ a few hundred workers.…”

Section: Introductionmentioning

confidence: 99%

Impacts of the Partial Relocation of Hazaribagh Tanneries on the Environment and Human Health: Focus on Children and Vulnerable Population

Haque

Nahar

Chowdhury

et al. 2020

ijsrtm

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Purpose of the study: The purpose of the study is to determine whether the partial relocation of Hazaribagh tanneries has any effect on the area’s soil quality with respect to chromium and to determine a possible link between human exposure/diseases to chromium, with the focus being placed on children and vulnerable population. Methodology: Geochemical sampling and public health research related to fieldwork (Focus Group Discussions, two In-Depth Interview, and Key Informant Interview). Main Findings: The study indicates that there is a significant presence of chromium in the area’s soil two years following the partial relocation of Hazaribagh tanneries. Flu-like symptoms, generalized skin rash, and fertility issues are common in the vulnerable population. The residents are ignorant, belong to the marginalized section of the society, and do not fully comprehend of the impact of environmental exposure to chromium. Applications of this study: The geochemical data may be used to identify in situ treatment technologies for remediation of the area’s soil. The public health data will allow health policymakers to generate ideas and implement solutions to one of the greatest health challenges faced by the impacted population. Novelty/Originality of this study: The study is multidisciplinary by nature and employs science and technology to systematically develop an insight into the environmental contamination resulting from the release of untreated effluent and solid waste containing chromium.

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Assessment of soil and groundwater contamination at a former Tannery district in Dhaka, Bangladesh

Cited by 39 publications

References 23 publications

Heavy Metals Distribution in Soil at Different Depths and Radiuses around Landfills in Districts of Nyékonakpoè, Akodesséwa and Amoutivé in Lomé City

Heavy Metals Distribution in Soil at Different Depths and Radiuses around Landfills in Districts of Nyékonakpoè, Akodesséwa and Amoutivé in Lomé City

Environmental and health risks of metal-contaminated soil in the former tannery area of Hazaribagh, Dhaka

Impacts of the Partial Relocation of Hazaribagh Tanneries on the Environment and Human Health: Focus on Children and Vulnerable Population

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