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Statistics

of placentas tested contained microplastics

All 62 placentas analysed contained measurable plastic, at 6.5 to 790 micrograms per gram of tissue.

Value
100%
Unit
%
Data year
2024
Trend
Not applicable
Source name
Garcia et al. 2024, Toxicological Sciences
Confidence
Evidence: High
Caveat / scope
Measured with a lab method that heats samples until the plastic breaks down, then identifies each type of plastic from the chemicals released (pyrolysis gas chromatography–mass spectrometry). 62 placentas from one US state.
Verified on
22 September 2026

Sources last verified 22 September 2026. Page updated 24 September 2026. How we check sources