Consideration of emerging environmental contaminants in africa: Review of occurrence, formation, fate, and toxicity of plastic particles

Angnunavuri, Prosper Naah; Attiogbé, Francis; Mensah, Bismark

doi:10.1016/j.sciaf.2020.e00546

Cited by 18 publications

(17 citation statements)

References 120 publications

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“…The degree of salinity differs significantly between freshwater and seawater, with seawater being naturally saltier and heavier than freshwater. The density of seawater increases with depth, which helps keep ECs suspended in the water column [ 40 ]. Seawater is in a constant state of motion.…”

Section: Occurrence and Fate Of Ppcps And Pesticides In Various Water...mentioning

confidence: 99%

Occurrence and fate of pharmaceuticals, personal care products (PPCPs) and pesticides in African water systems: A need for timely intervention

Okoye

Okeke

Okoye

et al. 2022

Heliyon

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Section: Occurrence and Fate Of Ppcps And Pesticides In Various Water...mentioning

confidence: 99%

Occurrence and fate of pharmaceuticals, personal care products (PPCPs) and pesticides in African water systems: A need for timely intervention

Okoye

Okeke

Okoye

et al. 2022

Heliyon

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“…Around 500 waste shipping containers have been reported to be dumped in Africa each month. However, only 10 percent of trash generated within Africa was recycled (Angnunavuri et al, 2020;Environmental Sustainability -African Impact, 2020). Several towns within the continent of Africa have no authorized services for waste collection, which Copyright © 2021, Journal La Lifesci, Under the license CC BY-SA 4.0 means no where to trash plastic wastes.…”

Section: Plastic Pollution As Emerging Pollution In Africamentioning

confidence: 99%

“…What this entails is that waste and litter, including plastic wastes, have to be managed by the residents themselves who usually resort to burying, burning, or in typical instances, simply dumping them on the road side and in waterways. Along with inadquate levels of education and increasing costs of living in Africa, this has catastrophic impacts on public health and the fragile wildlife in Africa (Angnunavuri et al, 2020;Environmental Sustainability -African Impact, 2020). Microplastics and nanoplastics are becoming serious course for concern recently in Africa and other parts of the world.…”

Section: Plastic Pollution As Emerging Pollution In Africamentioning

confidence: 99%

Environmental Pollutants and Contaminants of Emerging Concern: An African Perspective

Awuchi

Amagwula

2021

JLL

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This review focuses on the environmental pollutants and contaminants of emerging concern in Africa. There is increasing reports and identification of ecotoxicological impact of contaminants of emerging concern (CECs), such as plastic, pharmaceutical products, modern pesticides, and personal care products, in terrestrial and aquatic environment within Africa. Identification of CECs, including pharmaceuticals, plastic wastes, pesticide residues, fungal toxins, and personal care products, have been documented in African region including in sediments, sludge, treated drinking water, surface water, wastewater, groundwater, land, solid deposits, etc. Some of the emerging pollutants of concern to environment and humans include lindane, heptachlor, endrin, endosulfan, dieldrin, dichlorodiphenyltrichloroethane (DDT), benzaldehyde, aldrin, bisphenol A, phthalates, bisphenol S, etc. There is need for more studies to identify and quantify the existing and more emerging pollutants.

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“…In 2019 the consumption of disposable lunch boxes in China exceeded 40 billion (ASKCI Consulting Co., Ltd. 2020). The difficulty in effectively disposing of plastic products (Chen et al 2021) has posed significant harm to the environment (Parker 2018;Jepsen and de Bruyn 2019;Angnunavuri et al 2020;Bonanno and Orlando-Bonaca 2020). Therefore, recent research has focused on alternative materials to plastics.…”

Section: Introductionmentioning

confidence: 99%

Wet extrusion molding of wood powder with hydroxy-propylmethyl cellulose and with citric acid as a crosslinking agent

Tao

Nonaka

2021

BioRes

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To mitigate global warming and the serious problems incurred by the disposal of petroleum-based plastics, it is important to develop derivatives of biomass materials that can be used as substitutes. To overcome the lack of thermoplasticity of wood, a wet extrusion molding process for wood powder using a cellulose derivative, hydroxypropylmethyl cellulose (HPMC), had been developed. However, this material quickly reabsorbed water, swelled, and disintegrated in liquid. In the present study, a natural organic acid, citric acid, was added and kneaded together with the wood powder, the HPMC, and water. The resultant clay-like material was extruded into a tube-shaped material. The tube was air-dried and heated at 180 °C for 5 min to 30 min to allow crosslinking. By heating 1% citric acid for 30 min, the material avoided disintegrating in water for 60 min. The addition of 3% citric acid with 30 min crosslinking gave the material water resistance in water for 12 h. The degradability in the water was found to be controllable by changing the amount of citric acid and the heating time. This is a novel result because wood can be molded into a practical three-dimensional (3D) biomass composite material using this technology with natural substances without relying on petroleum-based plastics.

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Consideration of emerging environmental contaminants in africa: Review of occurrence, formation, fate, and toxicity of plastic particles

Cited by 18 publications

References 120 publications

Occurrence and fate of pharmaceuticals, personal care products (PPCPs) and pesticides in African water systems: A need for timely intervention

Occurrence and fate of pharmaceuticals, personal care products (PPCPs) and pesticides in African water systems: A need for timely intervention

Environmental Pollutants and Contaminants of Emerging Concern: An African Perspective

Wet extrusion molding of wood powder with hydroxy-propylmethyl cellulose and with citric acid as a crosslinking agent

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