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Letter to the editor regarding “microplastics in different nasal irrigation options” by Tuna et al.
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Letter to the editor regarding “Identification and characterization of microplastics in human nasal samples”
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This letter to the editor provides commentary on a published study identifying and characterizing microplastics in human nasal samples, with the authors declaring no conflicts of interest.
Microplastics in different nasal irrigation options
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Researchers analyzed 150 samples of nasal irrigation products commonly used for sinusitis and rhinitis treatment to assess their microplastic content. They found an average of 6.49 microplastics per product, with nasal wash bottles containing the highest levels (up to 92 particles per product) while syringes had the lowest. The study highlights that nasal irrigation methods can be a direct route of microplastic exposure to the human respiratory tract.
Response to the editor regarding “Identification and characterization of microplastics in human nasal samples”
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This is a response to the editor addressing concerns raised about a previously published paper on identification and characterization of microplastics, clarifying methodological choices and data interpretation. The response defends the original paper's conclusions against technical criticisms.
Microplastic Pollution In Eye Drops: Investigating Microplastic Contamination In Disposable And Multi-Use Artificial Tears
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Researchers investigated whether disposable and multi-use artificial tear eye drops contain microplastic contamination, raising concerns about direct ocular exposure to plastic particles through a product applied directly to the eye.
Identification and characterization of microplastics in nasal irrigation fluids: A preliminary study
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This preliminary study found microplastics — primarily polypropylene from the nozzle of the irrigation device itself — in nasal rinse fluids used for sinus irrigation. The discovery raises questions about whether routine nasal irrigation could be inadvertently delivering plastic particles directly into the nasal passages and potentially deeper into the respiratory tract. The authors call for further research to understand the health significance of this previously unrecognized exposure route.
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