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Growing concerns over ingested microplastics in humans
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This paper reviews the growing body of evidence showing that microplastics have been found in various human tissues, raising public health concerns. Researchers note that while laboratory studies demonstrate microplastics can cause cellular damage, significant knowledge gaps remain regarding dose-response relationships, specific target organs, and underlying toxicological mechanisms. The study calls for improved detection technologies and thorough risk assessments to better understand the real-world health implications.
Abstract Microplastics have been identified in various human tissues. While laboratory studies have shown that microplastics can cause damage and adversely affect physical functions at multiple levels, significant knowledge gaps persist. These include uncertainties regarding the dose-response relationship, specific target organs, and the underlying toxicological mechanisms. Future research is critical to address public concerns, encompassing the accurate quantification of microplastics through advanced technologies and a thorough risk assessment grounded in an evidence-based framework. Graphical Abstract
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Microplastics in Human Tissues: Sources, Distribution, Toxicological Effects, and Health Implications
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Researchers reviewed the growing body of evidence that microplastics accumulate in human tissues — including lung, blood, placenta, breast milk, and heart tissue — where they can trigger inflammation, oxidative stress, and cell death. The review highlights urgent knowledge gaps around how plastic particles move through the body and what their long-term health effects may be.
Human Exposure to Microplastics: Toxicological Mechanisms and Potential Health Implications - a Narrative Review
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Tiny plastic particles from our food, water, and air are showing up inside the human body, and lab studies suggest they could trigger cell damage, inflammation, and hormone disruption. This review pulls together existing research to show that while the potential risks are concerning, most evidence so far comes from test tubes and animal studies—so scientists still can't say for certain whether microplastics are directly causing specific diseases in people. More real-world human studies are needed before we know exactly how worried to be.
Microplastics and human health: exposure pathways, toxicological evidence and mitigation strategies.
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This review summarizes existing research on tiny plastic particles called microplastics, which have been found in human blood, placenta, lung tissue, breast milk and stool. Lab and animal studies link microplastics to cell damage, inflammation and effects on several organs, but human health data remain limited, and the paper proposes a framework for future risk assessment.
Microplastics and Human Health: A Comprehensive Review on Exposure Pathways, Toxicity, and Emerging Risks
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This comprehensive review examines microplastic exposure pathways in humans, methods of detection, and the potential toxic effects on various biological systems. The study highlights growing evidence that microplastics can enter the body through ingestion, inhalation, and dermal contact, and may affect multiple organ systems, though significant uncertainties remain about long-term health outcomes.
The potential effects of microplastics on human health: What is known and what is unknown
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This review summarizes what is currently known about how microplastics might affect human health, noting that while contamination is widespread in food, water, and air, direct evidence of harm in humans is still limited. Studies in animals and cell cultures suggest microplastics could trigger immune responses, cause inflammation, and affect reproduction and development. The authors call for more rigorous clinical studies to determine whether the levels of microplastics that people actually encounter pose real health risks.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.