A new study identifies which parts of our airways are getting clogged with microplastics as we inhale about 16.2 bits an hour.
"For the first time, in 2022, studies found microplastics deep in human airways, which raises the concern of serious respiratory health hazards,"University of Technology Sydney engineer Mohammad Islam, explaining the motivation for their study.
Islam and colleagues from around the world used a computational fluid dynamics model to safely explore how microplastics move around our upper airways under different breathing conditions. This model type has provided effective predictions for other forms of particles for decades. It revealed that the largest microplastics tested tend to get stuck in our upper airways, most likely in the nasal cavity or the back of the throat. The plastic dust's shape also influences where it's deposited.
The researchers reported that a faster air flow rate led to lower microplastic deposits overall, regardless of their shape."Millions of tons of these microplastic particles have been found in water, air, and soil,""Global microplastic production is surging, and the density of microplastics in the air is increasing significantly."
These tiny particles are shedding from the degradation of all the plastics we've surrounded ourselves with, from big industrial processes to consumer items. One of the most significant sources of these microparticles is the fashion industry, with its escalating production of ever-cheaper
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