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Innovative One-Health Assessment of Microplastic Exposure in Healthcare Workers: Quantifying Risk across Occupational, Environmental, and Dietary Pathways
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This One-Health study assessed microplastic exposure in healthcare workers, measuring plastic particles in occupational environments and biological samples to evaluate workplace-specific exposure routes and potential health implications.
Microplastic exposure in healthcare workers is a growing concern, yet it remains underexplored, especially in the context of their multifaceted exposure pathways. This study aims to quantify the exposure of healthcare workers to microplastics through three primary pathways: occupational, environmental, and dietary. By adopting a One-Health approach, which integrates human, animal, and environmental health sectors, this research assesses microplastic levels across hospital settings, comparing clinical and non-clinical staff. The study found that healthcare workers, particularly those working in clinical departments like laboratories and physiotherapy, had a 35% higher exposure rate to microplastics compared to non-clinical staff. Occupational exposure was linked to direct contact with medical disposables and contaminated surfaces, while environmental exposure primarily occurred through airborne particles and dust. Dietary exposure, especially from seafood and plastic-packaged foods, contributed significantly to the overall exposure. The findings highlight the importance of considering multiple pathways when assessing microplastic risks and suggest that microplastics are an emerging health hazard for healthcare workers. Potential health risks include respiratory issues, gastrointestinal disturbances, endocrine disruption, and chronic conditions such as neurotoxicity and cancer. This study underscores the need for policy changes, including the reduction of single-use plastics in healthcare environments, improvements in ventilation, and the development of dietary guidelines to limit microplastic intake. Future research should focus on the long-term health impacts of chronic microplastic exposure in healthcare workers and evaluate the effectiveness of interventions designed to mitigate these risks.
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Characteristics and assessment of exposure to microplastics through inhalation in indoor air of hospitals
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Sampling indoor and outdoor air at hospitals across multiple departments revealed average MP concentrations of 29.75 MPs/m³ indoors—over 13 times the outdoor level—with laboratory departments showing the highest concentrations, translating to estimated daily inhalation of 157 MPs/day for indoor occupants. The elevated indoor hospital exposure suggests healthcare workers and vulnerable patients face disproportionate microplastic inhalation risks, warranting ventilation and material-use reforms in clinical settings.
Microplastic Pollution: Human Exposure, Uptake, Accumulation Pathways, and Potential Health Consequences
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Researchers reviewed the exposure routes, uptake mechanisms, and accumulation pathways of microplastics in the human body, concluding that the ubiquitous presence of these particles warrants urgent investigation into their long-term ecological and health consequences.
Pathways of human exposure to microplastics, and estimation of the total burden
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Tiny plastic bits called microplastics are everywhere, in the air we breathe, the food we eat, and even things that touch our skin, and this review pulls together existing research to show we're exposed through all three routes, not just by eating contaminated food like most studies focus on. The bigger takeaway: scientists still don't have standardized, reliable ways to measure exactly how much plastic ends up in our bodies, so the true scale of our exposure remains uncertain. This matters because until better testing methods exist, it's hard to know just how much plastic we're really taking in, or what it's doing to our health.
Microplastics in human body: a narrative on routes of exposure to contamination and potential health effects
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Tiny plastic particles from our environment and food are getting into our bodies through eating, drinking, and breathing, and this review of existing research shows they've been found in organs like the liver, heart, and lungs. Scientists are concerned that as these particles build up over time, they may cause cell damage, inflammation, and stress on the body, though more research is still needed to fully understand the long-term health risks. The takeaway: microplastic exposure is nearly impossible to avoid completely, but reducing contact with plastic packaging and products may help limit how much ends up in your body.
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