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Photochemical Processes: Solution or Problem for Microplastics in the Environment?
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Researchers investigate photochemical processes as both a potential solution and a contributor to microplastic pollution, examining how UV-driven degradation can fragment larger plastics into nanoplastics while also exploring photocatalysis as a remediation strategy.
There is growing concern about the environmental and human health effects of micro- and nanoplastics (NP) which have been released into the environment. These particles which are from anthropogenic origin are now ubiquitous in the environment and have been found in...
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Photocatalytic Degradation of Microplastic in the Environment
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Researchers reviewed photocatalytic degradation as a promising approach for breaking down microplastics in the environment, finding it may offer advantages over incineration and filtration — though practical challenges around scale and efficiency remain.
Plastics: Photodegradations and Mechanisms
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This chapter detailed the photodegradation mechanisms by which UV radiation breaks polymer chains in common plastics, progressively generating smaller microplastic and nanoplastic fragments without eliminating the material from the environment. Understanding these photochemical pathways clarifies why sunlight-exposed plastic waste — in oceans, soils, and landfills — continuously generates new microplastic particles that accumulate in ecosystems and food chains.
Degradation of Microplastics in the Environment
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This review outlines the mechanical, chemical, and biological degradation pathways of environmental microplastics, noting that degradation rates depend on polymer structure, chemical additives, and environmental conditions such as temperature and UV exposure. Understanding how microplastics break down is essential because degradation produces smaller nanoplastics and releases toxic additives, potentially increasing bioavailability and health risks over time.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.