Story perspectives

Study Reveals 52,000 Microplastics Ingested Annually by Individuals

12/29/2025

Summary

Story summary

Sarah Sajedi, doctoral student at Concordia University, reviewed 140+ papers and found people ingest 39,000–52,000 microplastic particles annually from food and water, with bottled-water users adding nearly 90,000.
Sajedi's observation of plastic debris on a Thailand beach inspired the research.
Microplastics can enter the bloodstream and potentially cause chronic inflammation and hormone disruption, with detection methods varying and lacking a comprehensive approach to size and chemical composition.

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Story summary

Sarah Sajedi, doctoral student at Concordia University, reviewed 140+ papers and found people ingest 39,000–52,000 microplastic particles annually from food and water, with bottled-water users adding nearly 90,000.
Sajedi's observation of plastic debris on a Thailand beach inspired the research.
Microplastics can enter the bloodstream and potentially cause chronic inflammation and hormone disruption, with detection methods varying and lacking a comprehensive approach to size and chemical composition.