Mulling the Mysteries of Microplastics

Mind over microplastics — what we still don’t know

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Microplastics have been detected in human brain tissue for the first time, with higher concentrations found in individuals with dementia, though whether the particles cause neurological damage or simply accumulate more in affected brains remains unknown. The finding opens urgent questions about how microplastics cross the blood-brain barrier and what long-term exposure means for cognitive health.

The Microplastics Issue

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This book chapter introduces the microplastics issue in the context of titanium and titanium nanoparticles, covering the size range and basic characteristics of microplastic particles (1–5,000 µm). The association of titanium-based nanoparticles with microplastic matrices is relevant to understanding how engineered nanomaterials may co-contaminate environments alongside plastic pollution.

Getting a grip on microplastics’ risks

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Researchers and policy experts assessed the current state of microplastic risk evaluation, examining how scientific uncertainty and regulatory gaps complicate efforts to establish safe exposure thresholds and meaningful environmental standards for these pervasive contaminants.

Microplastics' Dangers to Humans and Ecosystems

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Researchers reviewed the global dangers of microplastics to human health and ecosystems, characterizing these particles as a pervasive pollutant with the potential to cause widespread harm across multiple environmental compartments and biological systems.

Our Microplastic Problem