Summary
This narrative review examines the current evidence base for biodegradable plastics degradation in soils, synthesising findings on their sources, degradation mechanisms, and environmental consequences under environmentally relevant conditions. The authors conclude that without robust scientific evidence demonstrating safe and effective soil degradation, expansion of biodegradable plastic production may be constrained. The review advocates for integrated scientific, industrial, and policy frameworks to address potential unintended environmental consequences and align with UN Sustainable Development Goals.
Regional applicability
The review's findings are globally applicable as biodegradable plastic contamination is an international concern. United Kingdom policy on single-use plastics and circular economy initiatives may find this evidence synthesis relevant for informing regulations on biodegradable plastic alternatives, though UK-specific soil degradation studies may be limited within the review scope.
Key measures
Degradation rates and pathways of biodegradable plastics in soils; environmental fate and effects; assessment methodologies
Outcomes reported
This review synthesises evidence on the sources, degradation mechanisms, and environmental effects of biodegradable plastics in soil systems under realistic soil conditions. The review assesses the current state of scientific evidence regarding safe and effective degradation of biodegradable plastics in soils.
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