Quantifying factors related to urban metal contamination in vegetable garden soils of the west and north of Melbourne, Australia

Kandic, Slavica; Tepe, Susanne; Blanch, Ewan W.; Silva, Shamali De; Mikkonen, Hannah G.; Reichman, Suzie M.

doi:10.1016/j.envpol.2019.04.031

Cited by 17 publications

(3 citation statements)

References 47 publications

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“…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. 127 Figure 1 shows study sites where the heavy metal content in fruits and vegetables were analyzed in peri-urban and urban areas.…”

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

199

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

199

109

View full text Add to dashboard Cite

show abstract

“…Unfortunately, atmospheric heavy metal emission (the amount of emitted pollutants at the source) and immission (measured concentration of pollutants in the atmosphere at a given location) levels are rarely monitored. In recent studies, elevated concentrations of several metals have been found in the soil around car repair shops and carwashes [ 11 ] and even in the soil of suburban vegetable gardens [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Pollution Assessment Based on Element Concentration of Tree Leaves and Topsoil in Ayutthaya Province, Thailand

Molnár

Simon

Ninsawat

et al. 2020

IJERPH

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Atmospheric aerosol particles containing heavy metal contaminants deposit on the surface of plant leaves and the topsoil. Our aim was to reveal the pollution along an industrial–urban–rural gradient (IURG) in the central provinces of Thailand. Leaf samples from Ficus religiosa and Mimusops elengi were collected along with topsoil samples under the selected trees. Al, Ba, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, and Zn concentrations were determined by ICP-OES in soil and plant samples. Soils were not polluted according to the critical value; furthermore, the elemental composition did not differ among the sampling sites of the IURG. The rural site was also polluted due to heavy amounts of untreated wastewater of the adjacent Chao Phraya River. Bioaccumulation factors of Ba, Cu, and Mn was higher than 1, suggesting active accumulation of these elements in plant tissue. Our findings proved that the deposition of air pollutants and the resistance to air pollutants in the case of plant leaves were different and that humus materials of the soils had relevant role in bioaccumulation of Al, Ba, and Cu. At the same time, the geochemical background, the source of pollution, and the local plant species greatly influence the metal content of any given environmental compartment.

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“…The ANZ environmental investigation guideline for soil Cd is 3 mg kg −1 (Siddique et al, 2021). Ecological urban soil investigation level is 3 mg kg −1 although background Cd in soil is 1 mg kg −1 (Kandic et al, 2019). Moreover, wheat grain Cd concentrations exceed the Australian and New Zealand food standards for Cd when it is grown in soil with 0.6 mg Cd kg −1 soil (Gray et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation and Tolerance Indices of Cadmium in Wheat Plants Grown in Cadmium-Spiked Soil: Health Risk Assessment

Halim

Rahman

Mondal

et al. 2021

Front. Environ. Sci.

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Farmers use wastewater for irrigation in many developing countries, for example Bangladesh, India, China, Sri Lanka and Vietnam because they have limited access to clean water. This study explored cadmium (Cd) bioaccumulation in two spring wheat cultivars (cv. Mustang and Lancer), which were grown in different concentrations of Cd (0,1, 2, 4, and 8 mg kg−1) in agricultural soils. The half maximum inhibitory concentration (IC50) values were 4.21 ± 0.29 and 4.02 ± 0.95, respectively, whereas the maximum health risk index (HRI) was 3.85 ± 0.049 and 5.33 ± 0.271, respectively, for Mustang and Lancer. In other words, the malondialdehyde content increased significantly in Mustang (around five-fold) and Lancer (around four-fold) compared with the control treatment. Results revealed that Cd content was well above the acceptable limit (HRI >1) in the two cultivars when exposed to different levels of Cd stress. The tolerant cultivar (Mustang) has potential to chelate Cd in the nonedible parts of plants in variable fractions and can be used efficiently to improve growth and macro- and micro-nutrients content while reducing Cd concentration in plants in Cd-contaminated soil. It can also diminish the HRI, which may help to protect humans from Cd risks. The two cultivars’ nutrient availability and sorption capacity significantly shape their survival and adaptability under Cd stress. Based on what is documented in the current study, we can conclude that Mustang is more tolerant and poses fewer health hazards to people than Lancer because of its capacity to maintain grain macro- and micro-nutrients under Cd stress.

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Quantifying factors related to urban metal contamination in vegetable garden soils of the west and north of Melbourne, Australia

Cited by 17 publications

References 47 publications

Soil and Human Health: Current Status and Future Needs

Soil and Human Health: Current Status and Future Needs

Pollution Assessment Based on Element Concentration of Tree Leaves and Topsoil in Ayutthaya Province, Thailand

Bioaccumulation and Tolerance Indices of Cadmium in Wheat Plants Grown in Cadmium-Spiked Soil: Health Risk Assessment

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