Soil concentrations of polybrominated diphenyl ethers and trace metals from an electronic waste dump site in the Greater Accra Region, Ghana: Implications for human exposure

Akortia, Eric; Olukunle, Olubiyi I.; Daso, Adegbenro P.; Okonkwo, Jonathan O.

doi:10.1016/j.ecoenv.2016.12.008

Cited by 97 publications

(48 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concentrations of polybrominated diphenyl ethers (PBDEs) were commonly measured in the reviewed studies by using gas chromatography electron impact ionization mass spectrometry (Akortia et al, 2017).…”

Section: Exposures Measuredmentioning

confidence: 99%

Environmental Health Research in Africa: Important Progress and Promising Opportunities

Joubert

Mantooth²,

McAllister

2020

Front. Genet.

View full text Add to dashboard Cite

The World Health Organization in 2016 estimated that over 20% of the global disease burden and deaths were attributed to modifiable environmental factors. However, data clearly characterizing the impact of environmental exposures and health endpoints in African populations is limited. To describe recent progress and identify important research gaps, we reviewed literature on environmental health research in African populations over the last decade, as well as research incorporating both genomic and environmental factors. We queried PubMed for peer-reviewed research articles, reviews, or books examining environmental exposures and health outcomes in human populations in Africa. Searches utilized medical subheading (MeSH) terms for environmental exposure categories listed in the March 2018 US National Report on Human Exposure to Environmental Chemicals, which includes chemicals with worldwide distributions. Our search strategy retrieved 540 relevant publications, with studies evaluating health impacts of ambient air pollution (n=105), indoor air pollution (n = 166), heavy metals (n = 130), pesticides (n = 95), dietary mold (n = 61), indoor mold (n = 9), per-and polyfluoroalkyl substances (PFASs, n = 0), electronic waste (n = 9), environmental phenols (n = 4), flame retardants (n = 8), and phthalates (n = 3), where publications could belong to more than one exposure category. Only 23 publications characterized both environmental and genomic risk factors. Cardiovascular and respiratory health endpoints impacted by air pollution were comparable to observations in other countries. Air pollution exposures unique to Africa and some other resource limited settings were dust and specific occupational exposures. Literature describing harmful health effects of metals, pesticides, and dietary mold represented a context unique to Africa. Studies of exposures to phthalates, PFASs, phenols, and flame retardants were very limited. These results underscore the need for further focus on current and emerging environmental and chemical health risks as well as better integration of genomic and environmental factors in African research studies. Environmental exposures with distinct routes of exposure, unique co-exposures and co-morbidities, combined with the extensive genomic diversity in Africa may lead to the identification of novel mechanisms underlying complex disease and promising potential for translation to global public health.

show abstract

Section: Exposures Measuredmentioning

confidence: 99%

Environmental Health Research in Africa: Important Progress and Promising Opportunities

Joubert

Mantooth²,

McAllister

2020

Front. Genet.

View full text Add to dashboard Cite

show abstract

“…The spiked samples were then soaked in 20 mL DCM/toluene (1:1, v/v) in airtight 100 mL amber bottles. Sample extraction followed the method previously described by Olukunle et al (2015) and Akortia et al (2017) with minor modifications. Briefly, about 5 g of each sample was weighed and ultrasonically extracted with 20 mL DCM/toluene (1:1, v/v).…”

Section: Sample Treatment and Analysismentioning

confidence: 99%

“…The crude extracts were evaporated to 1 mL by a rotary evaporator (Buchi Rotavapor, R-210, Labotec, South Africa). The extracts were de-sulphurized by adding 2 g of activated copper granules, and purified by a mixed column chromatography following a procedure previously reported by Akortia et al (2017), and using DCM for elution. The clean-up column was prepared by packing in layers into Pasteur pipettes (230 mm) from bottom with a glass wool, silica (0.16 g), basic silica (0.16 g), silica (0.16 g), acidic silica (0.16 g), Pesticarb (0.06 g) and finally topped with activated sodium sulphate (0.5 g) (Akortia et al 2017).…”

Section: Sample Treatment and Analysismentioning

confidence: 99%

Influence of particle size and total organic carbon on the distribution of polybrominated diphenyl ethers in landfill soils: assessment of exposure implications

2019

View full text Add to dashboard Cite

Background: The selection of soil fraction is an important influencing factor to accurately determine human exposure risk to toxic chemicals in the environment. The present study evaluated the concentrations of prevalent polybrominated diphenyl ethers (PBDEs) in different size fractions of soil from a landfill site and the factors that influence their distribution in the soils. Method: Samples were fractionated into size fractions; between 150-250 and 45-150 μm (after initial sieving through a 250 μm sieve) and, thereafter, PBDEs were extracted using a mixture of toluene-dichloromethane and subsequently cleaned with a multilayer silica gel/Pesticarb/sodium sulphate column and analysed using GC-MS. Results: The sum of seven PBDE congeners (BDE-28,-47,-100,-99,-154,-153 and-183) ranged from 7.08 to 10.8 ng g −1 with a total median of 7.32 ng g −1 , and from 7.00 to 8.77 ng g −1 with a total median of 7.21 ng g −1 , corresponding to size fractions 150-250 μm and 45-150 μm, respectively. BDE-183 was predominant in both soil fractions. A significant correlation was observed between ∑ 7 PBDEs concentrations and total organic carbon (TOC), particularly for particle size 150-250 μm (r 2 = 0.829, p < 0.05). Conclusion: The study revealed that PBDE concentrations did not automatically increase with decreasing particle size, and as such, PBDE-treated consumer goods and consequent abrasions of flame retardant-containing materials could be likely sources. The study also clarified that selecting soil fractions arbitrarily for exposure risk assessment may lead to inconclusive results. The study results, therefore, have important inferences for estimating flame retardant chemical exposure.

show abstract

“…These mixtures of different substances, covering both chemicals present in EEE components and chemicals released during ewaste combustion, may pose significant threat on the environment (Brigden et al, 2008;Asante et al, 2012). In addition, there may be negative consequences on human safety, given that these substances persist in the environment and have a great potential to accumulate in human and animal tissue (Akortia et al, 2017;Project SBCA and Pwamang, 2011;Ogungbuyi et al, 2012;Zheng et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Impact of informal electronic waste recycling on metal concentrations in soils and dusts

Ohajinwa

Bodegom

Vijver

et al. 2018

Environmental Research

View full text Add to dashboard Cite

License: Article 25fa pilot End User Agreement This publication is distributed under the terms of Article 25fa of the Dutch Copyright Act (Auteurswet) with explicit consent by the author. Dutch law entitles the maker of a short scientific work funded either wholly or partially by Dutch public funds to make that work publicly available for no consideration following a reasonable period of time after the work was first published, provided that clear reference is made to the source of the first publication of the work. This publication is distributed under The Association of Universities in the Netherlands (VSNU) 'Article 25fa implementation' pilot project. In this pilot research outputs of researchers employed by Dutch Universities that comply with the legal requirements of Article 25fa of the Dutch Copyright Act are distributed online and free of cost or other barriers in institutional repositories. Research outputs are distributed six months after their first online publication in the original published version and with proper attribution to the source of the original publication. You are permitted to download and use the publication for personal purposes. All rights remain with the author(s) and/or copyrights owner(s) of this work. Any use of the publication other than authorised under this licence or copyright law is prohibited. If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons.

show abstract

Soil concentrations of polybrominated diphenyl ethers and trace metals from an electronic waste dump site in the Greater Accra Region, Ghana: Implications for human exposure

Cited by 97 publications

References 64 publications

Environmental Health Research in Africa: Important Progress and Promising Opportunities

Environmental Health Research in Africa: Important Progress and Promising Opportunities

Influence of particle size and total organic carbon on the distribution of polybrominated diphenyl ethers in landfill soils: assessment of exposure implications

Impact of informal electronic waste recycling on metal concentrations in soils and dusts

Contact Info

Product

Resources

About