Unveiling the hidden chronic health risks of nano- and microplastics in single-use plastic water bottles: A review.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing secondary exposure and toxicology literature without original patient data or systematic quantitative pooling.
PubMed 40555020 · doi:10.1016/j.jhazmat.2025.138948
What was done
The authors conducted a literature review of over 141 scientific articles examining human exposure to nano- (<1 µm) and microplastics (1 µm to 5 mm) from single-use plastic water bottles and their associated chronic health effects.
What was found
Individuals ingest an estimated 39,000 to 52,000 microplastic particles annually, with bottled water drinkers ingesting up to 90,000 additional particles compared to tap water drinkers. Literature associations were identified between plastic particle exposure and respiratory diseases, reproductive issues, neurotoxicity, and carcinogenicity. The review noted substantial variability across studies in particle numbers, sizes, and reported physical properties.
Why it matters
This review aggregates evidence showing that single-use plastic water bottles are a major source of ingested plastic particles and underscores the need for standardized analytical methods and regulatory frameworks.
Limits
The findings are derived from a narrative review of heterogeneous primary studies with differing measurement methods. Standardized testing protocols are lacking, physical characterization data are limited, and causal exposure-response relationships in humans were not quantitatively defined in the abstract.
Cited by
- supports Nanoplastics from plastic water bottles penetrate the gut barrier and enter the bloodstream.