Summary
This critical review examines the environmental behaviour and biological effects of titanium dioxide nanoparticles (nano-TiO₂), one of the most widely manufactured engineered nanoparticles used across industrial and consumer applications. The authors synthesise evidence on nano-TiO₂ interactions with soil matrix components and plant systems, whilst highlighting significant gaps in understanding long-term environmental persistence, bioaccumulation potential, and agronomic impacts. The paper establishes a foundation for identifying future research needs to assess potential risks to soil health and food security.
Regional applicability
Given widespread use of nano-TiO₂ in UK consumer products and food additives, understanding soil-plant interactions is relevant to UK food safety policy and soil health assessment frameworks. Findings may inform environmental risk assessment and nano-material regulation within UK and European governance structures.
Key measures
Qualitative assessment of nanoparticle-soil interaction mechanisms, plant uptake pathways, and toxicological outcomes
Outcomes reported
This critical review synthesises current knowledge on how engineered titanium dioxide nanoparticles interact with soil components and plants, identifying knowledge gaps and future research priorities.
Topic tags
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