Heavy metal accumulation in leafy vegetables grown in industrial areas under varying levels of pollution

Naser, Habib Mohammad; Rahman, M. T.; Sultana, Syeda Sharmeen; Quddus, Md. Abdul; Hossain, Md. Faruk

doi:10.3329/bjar.v43i1.36157

Cited by 15 publications

(10 citation statements)

References 19 publications

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“…Heavy metals have been detected in major food products of Bangladesh, including cereals, vegetables, fruits, water, or fish (Hezbullah et al 2016;Islam et al 2018a). A comparative study of common leafy vegetables collected from industrial and nonindustrial regions showed that nonessential heavy metals accumulated most in vegetables from the industrial regions of Bangladesh (Naser et al 2018). Furthermore, the trophic transfer of heavy metals from rivers via human consumption of fish and other freshwater animals was confirmed in previous studies on urban rivers of Bangladesh (Rahman et al 2012a, b;Ahmed et al 2015a).…”

Section: Trophic Transfer Of Heavy Metals Through Food Webs 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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Section: Trophic Transfer Of Heavy Metals Through Food Webs 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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“…The mean value for Cobalt in the samples exceeded the recommended cobalt limits in the standards irrigation water. Excessive accumulation in agricultural soils through wastewater irrigation may not only result in soil contamination, but also affects food quality and safety (Naser et al, 2018). The elevated Co concentration in the treated effluent could be linked to effluent discharges into the Nairobi River from small and medium enterprises such as vehicle garages.…”

Section: Results Treated Effluent Discharge Point Upstream and Downstream Nairobi River And Raw Influent Samples Analysed For Total Colifmentioning

confidence: 99%

“…For instance, trace quantities of certain heavy elements like Co, Cu and Zn are essential micronutrients for plants and higher animals. However, excessive accumulation in agricultural soils through wastewater irrigation may not only result in soil contamination, but it also affects food quality and safety (Naser et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The quality of the Treated effluent, Raw Influent and Wastewater-polluted Water sources Used for Irrigation of Vegetables in Urban and Peri-Urban Areas of Nairobi County, Kenya

Rono¹,

Gweyi-Onyango²

2021

IJSRP

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Nearly half of the wastewater generated in Nairobi ended up treated in the treatment facilities. However, cases of irrigating vegetables with raw influent and untreated wastewater water by urban and peri-urban farmers in Nairobi have been noted. Despite the importance of wastewater in in Kenya's urban and peri-urban agriculture, information on the quality of water used for irrigation areas is lacking. This study sought to establish physicochemical and microbiological composition of water used for irrigating vegetables in Ruai ward, Nairobi County, Kenya. A preliminary survey was conducted to identify sources of water used for irrigation. Sources of water used for irrigation were then categorized into the treated effluent, raw influent and wastewaterpolluted water sources. From these sources sampling points were randomly selected and georeferenced. Parameters investigated for physicochemical characteristics are total dissolved solids (TDS), aluminium (Al), cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), zinc (Zn) and lead (Pb). Microbiological organisms determined in the samples are total coliforms and Escherichia coli. Concentration of TDS was determined using evaporation method, while Al, Cd, Cr, Co, Cu, Zn and Pb concentrations were determined using atomic absorption spectrometry. Total coliforms and E. coli were determined through inoculation. The results revealed TDS were generally within the recommended level (1200 mg/l), except the raw influent, which recorded 1582 mg/l. Range in Al, Cd, Cr, Co, Cu and Zn was 2.8 -13 mg/l, 3.6 -4.2 mg/l, 1.2 -5.0 mg/l, 3.2 -5 mg/l, 0.4 -5.0 mg/l, 0.4 -6.8 mg/l, respectively. Lead with a concentration of 6.8 mg/l was detected only in the treated effluent sample. Recommended concentrations of Al, Cd, Cr, Co, Cu, Zn and Pb are 5, 0.5, 1.5, 0.1, 0.05, 2 and 5 mg/l, respectively. It was further observed total coliforms and Escherichia coli in the samples exceeded recommended concentrations of <1000 minimum probable number per litre (< 1000 MPN/l) and nil/ 100 ml, respectively. The results showed that most of parameters measured exceeded the recommended water quality limits. Therefore, the wastewater cannot for crop irrigation.

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“…In 2009, the Pb concentration detected in the treatment containing 1000 mg kg −1 was more than two times higher than that detected in the treatment containing 650 mg kg −1 . It has previously been established that spinach has a high capacity for the uptake and translocation of Pb from the soil to aerial tissues, and that the metal content in plants increases with the increasing level of Pb in soil [68][69][70][71][72][73][74]. Compared to other leafy vegetables, spinach was shown to possess the greatest ability to accumulate Pb in its tissues.…”

Section: Spinachmentioning

confidence: 99%

Lead Bioaccumulation and Translocation in Herbaceous Plants Grown in Urban and Peri-Urban Soil and the Potential Human Health Risk

et al. 2021

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Lead (Pb) contamination risks to crops grown in urban and peri-urban soils is a great concern that should be better evaluated to define the Pb maximum levels in soils for safe cultivation and to identify suitable strategies to remediate Pb polluted urban soils. The objective of this work was to evaluate the potential risk for human health from the ingestion of the edible portions of barley, castor bean, common bean, Indian mustard, sorghum, spinach, and tomato grown in an unpolluted soil (initial Pb content 32.6 mg kg−1) spiked with 0, 300, 650, 1000 mg Pb kg−1, respectively. The potential possibility of using these plants to phyto-remediate the soil of Pb was also assessed. Pot trials were conducted for two years (2008 and 2009). Results highlighted that all the investigated species were able to attain growth to maturity in high Pb spiked soil, although Pb influenced dry matter accumulation. Even in soils with low Pb concentrations, Pb accumulated the edible parts. Noteworthy, even in untreated control soils, all tested species revealed a Pb concentration in the edible parts that was higher than the safe limit set by FAO/WHO. None of the investigated species were considered Pb hyperaccumulators, but all were shown to be potentially suitable for phyto-stabilization.

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Heavy metal accumulation in leafy vegetables grown in industrial areas under varying levels of pollution

Cited by 15 publications

References 19 publications

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

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

The quality of the Treated effluent, Raw Influent and Wastewater-polluted Water sources Used for Irrigation of Vegetables in Urban and Peri-Urban Areas of Nairobi County, Kenya

Lead Bioaccumulation and Translocation in Herbaceous Plants Grown in Urban and Peri-Urban Soil and the Potential Human Health Risk

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