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Impact of Vehicular Traffic on Single Use Surgical Face Masks as a Source of Environmental Micro-fiber Pollution | ||
Pollution | ||
دوره 9، شماره 2، تیر 2023، صفحه 501-512 اصل مقاله (5.44 M) | ||
نوع مقاله: Original Research Paper | ||
شناسه دیجیتال (DOI): 10.22059/poll.2022.346926.1567 | ||
نویسنده | ||
Dirk HR Spennemann* | ||
School of Agricultural, Environmental and Veterinary Sciences; Charles Sturt University; PO Box 789; Albury NSW 2640, Australia | ||
چکیده | ||
During the COVID-19 pandemic large numbers of single-use, surgical style face masks were lost or discarded in public spaces, primarily in on public streets and car parking settings. Many of these masks were blown onto the road surfaces where they were subjected to degradation through the tire impact of passing vehicle traffic. As series of field observations as well as experimental simulations show that the three-ply polypropylene mask fabric is subjected to shear forces when compressed between the tire and the road surface. The mechanical action breaks the bonds between the fibers (both spunbonded and meltblown) leading to a continual shedding of microfibers. Wind disperses these into the environment along road sides, while surface water action moves them into stormwater drains and from there into the waterways. As the decay is rapid, municipal agencies only have a short window of time to remove stray face masks from the urban environment if micro-fiber pollution is to be reduced. | ||
کلیدواژهها | ||
COVID-19؛ environmental decay؛ face masks؛ micro-plastics؛ pollution؛ road traffic | ||
مراجع | ||
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