Assessment of trace element contamination of urban surface soil at informal industrial sites in a low-income country

Kanda, Artwell; Hwende, Tamuka; Makumbe, Peter

doi:10.1007/s10653-018-0127-7

Cited by 12 publications

(5 citation statements)

References 40 publications

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“…Bawtry Gasworks was already developed as a housing estate when the contamination was detected and remediation took place, while in Tubize, the developer cleared the site to build a large housing complex [32,41,42]. Today, sites that are situated in or near densely populated areas with high land value, and which pose unacceptable human health risks, are, in high-income countries, typically quickly dealt with and are funded swiftly by the liable party [43][44][45]. In fact, almost every land development in inner city areas is expected to deal with contamination due to its previous use or surrounding activities, including heavy traffic.…”

Section: Definition Of Brownfieldmentioning

confidence: 99%

Greening the Browns: A Bio-Based Land Use Framework for Analysing the Potential of Urban Brownfields in an Urban Circular Economy

et al. 2020

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The Circular Economy (CE) is expected to accelerate the use of resources with bio-based origin. Cities have an important role in such an economy, not only as main consumers but also because vegetation provides numerous ecosystem services essential for the well-being of urban dwellers. Urban lands are, however, heavily burdened with both past and present activities and ongoing urbanization. Retrofitting obsolete and potentially contaminated brownfields provides an opportunity to engage with bio-based land uses within the city. At the same time, plants are an important part of Gentle Remediation Options (GROs), a more sustainable alternative for managing contamination risks and restoring soil health. This paper (1) provides a tentative selection of Urban Greenspaces (UGSs) relevant for brownfields, and a compilation of ecosystem services provided by the selected UGSs, and (2) presents a framework covering the 14 selected bio-based land uses on brownfields, including GRO interventions over time. This framework provides three practical tools: the conceptualization of linkages between GROs and prospective UGS uses, a scatter diagram for the realization of 14 UGS opportunities on brownfields, and a decision matrix to analyze the requirements for UGS realization on brownfields.

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Section: Definition Of Brownfieldmentioning

confidence: 99%

Greening the Browns: A Bio-Based Land Use Framework for Analysing the Potential of Urban Brownfields in an Urban Circular Economy

et al. 2020

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“…Heavy metal pollution emanating from urban areas is a major environmental problem in Zimbabwe (Teta, Ncube, & Naik, 2017). Informal industrial sites and waste dump areas around the capital and largest city, Harare, have been implicated in high levels of environmental contamination by cadmium, copper, chromium, and lead (Kanda, Ncube, Hwende, & Makumbe, 2018;Tongesayi, Kugara, & Tongesayi, 2018). One study estimated that adults and children who scavenge at dump sites around Harare are exposed to lead levels that exceed WHO tolerable daily intake levels due to inhalation of contaminated airborne dust (Tongesayi et al, 2018).…”

Section: Industrial Effluents and Dump Sitesmentioning

confidence: 99%

The role of chemical exposures in reducing the effectiveness of water–sanitation–hygiene interventions in Bangladesh, Kenya, and Zimbabwe

Kearns

2020

WIREs Water

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The sustainable success of water, sanitation, and hygiene (WASH) interventions to reduce waterborne disease and promote public health in low‐income regions is uncertain. Recent large randomized controlled trials in Bangladesh, Kenya, and Zimbabwe revealed that traditional household WASH interventions are unlikely to reduce diarrhea or improve linear growth (i.e., reduce stunting) in infants and children—two important indicators of the effectiveness of WASH interventions. A possible factor contributing to the null results is that traditional WASH interventions control microbial pathogens but do not remove chemical toxicants. Exposure to many organic and inorganic chemical toxicants is associated with diarrheal symptoms, as well as with preterm birth and stunting. Many chemical toxicants have deleterious effects on the immune system, impairing the body's response to infectious diseases, and reducing the effectiveness of vaccinations. Globalization has led to rapid and largely unregulated import, production, use, and disposal without adequate treatment of large quantities of hazardous chemicals throughout the developing world, with profound effects on the environment and human health. Literature evidence from the past 10 to 15 years on putative and demonstrated chemical exposures in Bangladesh, Kenya, and Zimbabwe and the regions within the countries where the large WASH trials took place supports potential contribution(s) from chemical toxicants in the failure of traditional WASH interventions to relieve diarrhea and stunting. Mitigating exposures to organic and inorganic chemical immunotoxins through drinking water and other routes is likely to be a necessary‐but‐insufficient criterion for the sustainable success of WASH interventions. This article is categorized under: Engineering Water > Water, Health, and Sanitation Engineering Water > Sustainable Engineering of Water

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“…In recent decades, significant attention has been paid to heavy metal contamination as a dangerous environmental problem because of the toxicity, abundance, persistence and bioaccumulation of these elements (Chen et al, 2016,) (Islam et al, 2017 and ) (Jin et al, 2019). In general, the contamination state of the environment is evaluated by the total concentration of heavy metals (Kanda et al, 2018). The riverine sediments are considered as the main basins for various pollutants following the largely uncontrolled discharge of contamination resulting from human activities and geogenic processes (Liu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Vertical and Lateral Distribution of Heavy Metals in the Euphrates River Sediments between Heet and Fallujah, Western Iraq

Saber

Saod

Al-Heety

2021

IGJ

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In recent decades, significant attention has been paid to heavy metal contamination as a dangerous environmental problem because of the toxicity, abundance, persistence and bioaccumulation of these elements (Chen et al., 2016,) (Islam et al., 2017 and ) (Jin et al., 2019). In general, the contamination state of the environment is evaluated by the total concentration of heavy metals (Kanda et al., 2018). The riverine sediments are considered as the main basins for various pollutants following the largely uncontrolled discharge of contamination resulting from human activities and geogenic processes (Liu et al., 2018). The sediment contamination is an important indicator of environmental variation as a result of anthropogenic influence (Gao et al., 2019). River sediments serve as not only a major sink and carrier of heavy metals but also as potential sources of secondary pollution, which can reflect their contamination level (Tang et al., 2014 and ) (Hsu et al., 2016). The heavy metals are released into the aquatic environments from geogenic and anthropogenic sources. The geogenic sources include chemical leaching of bedrock, water drainage basins and runoff from banks (Raj et al., 2017). The anthropogenic sources of heavy metals pollution in aquatic systems include mining activities, industrial wastes disposal and pesticides use, (Chakravarty & Patgiri, 2009). The heavy metals pollution of sediments is an indicator of the aquatic systems water quality (Zhao et al., 2012). The heavy metal distribution in sediments and pollution levels supplies a base for consideration of sediments treatment methods and evaluation of the potential releasing of heavy metals into water and transport downstream (Nawrot et al., 2020). The vertical and spatial distribution of heavy metals and pollution levels have been evaluated in sediments of many world rivers, such as the Yinma River, China (Guan et al., 2018), the Voghji River, Armenia (Gabrielyan et al., 2018), the Barigui River, Brazil (Machado et al., 2017), the Harazdan River, Armenia (Petrosyan et al., 2019), the Thames River, the UK (Vane et al., 2020), the Yang River, China (Tang et al., 2020), and the Lu Lu River, China (Ye et al., 2020). The spatial distribution of heavy metals in sediments of the Euphrates River in Iraq has been investigated by many authors (Issa & Qanbar, 2016); (Al-Taher et al., 2020); and (Hussain & Al-Jaberi, 2020). The spatial variation of heavy metal concentrations in sediments of the Euphrates River along the studied area between Heet and Ramadi Cities has been studied by (Al-Bassam & Al-Mukhtar, 2008) and (Salah et al., 2012). The aim of the study is to investigate how heavy metals are laterally and vertically distributed in sediments of the given study area of Euphrates River between Heet and Fallujah Cities. This study represents the first attempt to investigate the vertical distribution of heavy metals in the Euphrates River sediments.

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Assessment of trace element contamination of urban surface soil at informal industrial sites in a low-income country

Cited by 12 publications

References 40 publications

Greening the Browns: A Bio-Based Land Use Framework for Analysing the Potential of Urban Brownfields in an Urban Circular Economy

Greening the Browns: A Bio-Based Land Use Framework for Analysing the Potential of Urban Brownfields in an Urban Circular Economy

The role of chemical exposures in reducing the effectiveness of water–sanitation–hygiene interventions in Bangladesh, Kenya, and Zimbabwe

Vertical and Lateral Distribution of Heavy Metals in the Euphrates River Sediments between Heet and Fallujah, Western Iraq

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