Breathing in Microplastics: The Hidden Threat in Cities is becoming a serious public health concern. Recent studies show airborne microplastics are rising in urban areas, putting human lungs at risk. Tiny polypropylene fibers from disposable face masks and synthetic clothing contribute to this growing problem. These fibers mix with PM2.5 particles and fine plastic dust, making city air more hazardous.
Research led by Fobang Liu at Xi’an Jiaotong University highlights how the COVID-19 environmental impact has changed urban microplastic exposure. Post-2020 mask usage significantly increased the amount of transparent and white polypropylene fibers in the air. Particle dosimetry studies reveal that many fibers bypass the nose and throat, reaching the tracheobronchial airways and deep pulmonary region. Teenagers and young adults show higher sensitivity to these particles.
Airborne microplastics in cities come from multiple sources, including traffic, construction, and litter. Waste management gaps allow lightweight plastics to escape landfills, and wind or traffic disperses them further. Microfiber pollution is no longer limited to water; it now affects air quality in cities, creating respiratory health risks. Inhaled particles may carry toxic chemicals and microbes, increasing lung health and pollution concerns.
Individuals can reduce exposure by using air purifiers, wearing protective masks during heavy pollution, and avoiding synthetic fabrics indoors. City authorities can improve street cleaning, enforce waste disposal protocols, and conduct toxicology tests to distinguish harmful fibers. Public health and pollution monitoring must evolve to address this hidden threat effectively.
In conclusion, breathing in microplastics in urban air is a silent danger. Awareness, personal protection, and city-level action can reduce risks. Protecting lungs today ensures healthier urban living tomorrow.
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Breathing in microplastics: the hidden threat in cities increases respiratory health risks from airborne microplastics and fine dust.
