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A Children’s Health Perspective on Nano- and Microplastics
Summary
This paper highlighted that children face unique risks from nano- and microplastic exposure because their defense mechanisms are still developing, yet almost no toxicological research has specifically focused on child health. Researchers noted that child-specific exposure sources and how plastic particles are absorbed and eliminated in young bodies remain largely unstudied. The study provides recommendations for filling these research gaps and suggests ways families can reduce early-life plastic exposure.
Few studies have addressed child-specific sources of exposure, and exposure estimates currently rely on generic assumptions rather than empirical measurements. Furthermore, toxicological research on NMPs has not specifically focused on child health, yet children's immature defense mechanisms make them particularly vulnerable. Apart from few studies investigating the placental transfer of NMPs, the physicochemical properties (e.g., polymer, size, shape, charge) driving the absorption, biodistribution, and elimination in early life have yet to be benchmarked. Accordingly, the evidence base regarding the potential health impacts of NMPs in early life remains sparse. Based on the evidence to date, we provide recommendations to fill research gaps, stimulate policymakers and industry to address the safety of NMPs, and point to opportunities for families to reduce early life exposures to plastic. https://doi.org/10.1289/EHP9086.
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