Assessment of potentially toxic trace element contamination in urban allotment soils and their uptake by onions: A preliminary case study from Sheffield, England

Weber, Annika; Mawodza, Tinashe; Sarkar, Binoy; Menon, Manoj

doi:10.1016/j.ecoenv.2018.11.090

Cited by 30 publications

(18 citation statements)

References 59 publications

(91 reference statements)

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“…113 The use of brownfields for gardening and wastewater for irrigation can pose serious problems related to contamination of the vegetables produced in these areas. 114,115 Some urban areas studies have shown the levels of pollutant accumulation in vegetables did not threaten human health, such as Barcelona, Spain 113,116 ; Sevilla, Spain 117 ; Lisbon, Portugal 118 ; Madrid, Spain 119 ; Sheffield, UK 120 ; and Braganca, Portugal. 121 However, in other cities, the pollutant levels identified were high and threatened human health, including Rio de Janeiro, Brazil 122 ; Daejeon, South Korea 123 ; Rome, Italy 124 ; Melbourne, Australia 125 ; Dera Ismail Khan, Pakistan 126 ; and Ghaziabad, India.…”

Section: Soil Pollution and Human Healthmentioning

confidence: 99%

Soil and Human Health: Current Status and Future Needs

Brevik

Slaughter

Singh

et al. 2020

Air, Soil and Water Research

178

109

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Soil influences human health in a variety of ways, with human health being linked to the health of the soil. Historically, emphasis has been placed on the negative impacts that soils have on human health, including exposures to toxins and pathogenic organisms or the problems created by growing crops in nutrient-deficient soils. However, there are a number of positive ways that soils enhance human health, from food production and nutrient supply to the supply of medications and enhancement of the immune system. It is increasingly recognized that the soil is an ecosystem with a myriad of interconnected parts, each influencing the other, and when all necessary parts are present and functioning (ie, the soil is healthy), human health also benefits. Despite the advances that have been made, there are still many areas that need additional investigation. We do not have a good understanding of how chemical mixtures in the environment influence human health, and chemical mixtures in soil are the rule, not the exception. We also have sparse information on how most chemicals react within the chemically and biologically active soil ecosystem, and what those reactions mean for human health. There is a need to better integrate soil ecology and agronomic crop production with human health, food/nutrition science, and genetics to enhance bacterial and fungal sequencing capabilities, metagenomics, and the subsequent analysis and interpretation. While considerable work has focused on soil microbiology, the macroorganisms have received much less attention regarding links to human health and need considerable attention. Finally, there is a pressing need to effectively communicate soil and human health connections to our broader society, as people cannot act on information they do not have. Multidisciplinary teams of researchers, including scientists, social scientists, and others, will be essential to move all these issues forward.

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Section: Soil Pollution and Human Healthmentioning

confidence: 99%

Soil and Human Health: Current Status and Future Needs

Brevik

Slaughter

Singh

et al. 2020

Air, Soil and Water Research

178

109

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“…Lack of a sufficient amount of clean water for irrigation leads to the used of wastewater in many developing cities (Sayo et al, 2020). Vegetable gardens located in urban and peri-urban areas are at risk of been contaminated with dangerous HM from various sources (Bi et al, 2018;Hong et al, 2019) due to intense industrial activities that are taking place in many cities (Deng et al, 2020;Weber et al, 2019) which releases tonnes of contaminants (Margenat et al, 2018). Atmospheric deposits through fossil fuel combustion and dust from contaminated areas intensify soil contamination in urban areas (Weber et al, 2019).…”

Section: The Roles Of Urban Agriculture In Food Crops Hm-contaminationmentioning

confidence: 99%

“…Vegetable gardens located in urban and peri-urban areas are at risk of been contaminated with dangerous HM from various sources (Bi et al, 2018;Hong et al, 2019) due to intense industrial activities that are taking place in many cities (Deng et al, 2020;Weber et al, 2019) which releases tonnes of contaminants (Margenat et al, 2018). Atmospheric deposits through fossil fuel combustion and dust from contaminated areas intensify soil contamination in urban areas (Weber et al, 2019). A systemic review conducted by Frank et al (2019) in United states showed that the Pb content of the soil in the urban areas is three times higher than in the soil outside cities.…”

Section: The Roles Of Urban Agriculture In Food Crops Hm-contaminationmentioning

confidence: 99%

Heavy Metals in Food Crops: Ideal Sources and Roles of Urban Agriculture in Facilitating Their Consumption- A Review

Abdullahi¹,

Igwe²,

Dandago³

et al. 2021

FJS

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The qualities of agricultural soil and water are diminishing continuously due to the rigorous anthropogenic activities currently stocking the soil with a lot of toxic chemicals including heavy metals. Heavy metals are highly persistent and non-biodegradable, control of their contamination is very tricky to handle. Their presence in soil and water is detrimental to food crops and humans. Various sources of heavy metals contaminants and the role of urban food production on human heavy metal contamination were discussed.Heavy metals have their way into the soil and food crops through wastewater irrigation and production in contaminated soil. The habitual heavy metals contamination sources for food crops are wastewater irrigation, abuse of agrochemicals, production in the contaminated field, atmospheric deposit when foods are exposed to contaminated air, and unethical mining activities. Agricultural soil in urban and peri-urban areas are heavily contaminated with heavy metal due to various anthropogenic activities. Wastewater irrigation intensify the contamination by supplying the soil with more heavy metals. The heavy metals are passed to food during production and subsequently to humans after consumption.

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Section: Introductionmentioning

confidence: 99%

“…Food safety is a key issue in the production of home-grown vegetables in cities [5][6][7][8][9][10]. The question arises as to whether urban soil is a good substrate to produce vegetables for home consumption due to the risk of its contamination with metals [6,[10][11][12]. Vegetables grown on urban soils with a high concentration of heavy metals (especially toxic ones) may accumulate these toxins in edible parts, and when consumed, they are incorporated into the food chain.…”

Section: Introductionmentioning

confidence: 99%

Soil Quality as a Key Factor in Producing Vegetables for Home Consumption—A Case Study of Urban Allotments in Gorzów Wielkopolski (Poland)

et al. 2021

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The aim of the study was to analyse the quality of soil in urban allotment gardens in the context of the production of home-grown vegetables. The study was conducted on six allotment gardens (31 individual plots) in Gorzów Wielkopolski, a medium-sized Polish city with an average level of industrialisation. The following soil characteristics were analysed: pH, electric conductivity, organic matter, organic carbon, humus, total nitrogen, C:N ratio, NH4+-N, NO3-N−, P, K, Ca, Mg, SO4−-S, Cl, Na, Fe, Cu, Zn, Mn, Ni, Cr, Cd, Pb. The analyses showed that the soils were abundant in necessary nutrients for vegetable growing. They had high content of calcium, magnesium, and phosphorus. However, the soil pH in areas of vegetable cropping was too high. The content of toxic heavy metals—cadmium (0.22–0.59 mg∙kg−1 d.m.) and lead (3.46–16.89 mg∙kg−1 d.m.)—was within the acceptable limits. Nevertheless, the chemical analysis of carrots used as test vegetables showed that the permissible limits of cadmium and lead content in their roots were exceeded. The excessive uptake of these toxic metals can be reduced by lowering the soil pH and applying organic carbon to the soil.

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Assessment of potentially toxic trace element contamination in urban allotment soils and their uptake by onions: A preliminary case study from Sheffield, England

Cited by 30 publications

References 59 publications

Soil and Human Health: Current Status and Future Needs

Soil and Human Health: Current Status and Future Needs

Heavy Metals in Food Crops: Ideal Sources and Roles of Urban Agriculture in Facilitating Their Consumption- A Review

Soil Quality as a Key Factor in Producing Vegetables for Home Consumption—A Case Study of Urban Allotments in Gorzów Wielkopolski (Poland)

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