Analysing cobwebs for trapped microplastics – a new method of research
The level of microplastic pollution in the air can be analysed from spiders’ cobwebs as they catch more than just insects.
4 June 2020
You are more likely to die from COVID-19 when the air is polluted with particulate matter. American researchers at Harvard University drew this conclusion last April. The amount of nitrogen is most significant in urban areas. The researchers argue that COVID-19 have higher chances to be fatal in urban areas than in areas where the air is cleaner. The study was adjusted for other factors, such as age, smoking, or overweight.
In the Netherlands, there are strong suspicions of a link between high concentrations of particulate matter and victims of COVID-19. In areas with intensive livestock farming, ammonia is a significant cause of the particulate matter. This affects health and makes people more susceptible to COVID-19.
Particulate matter in the air also consists of microfibers and plastic dust. Another American study indicated that the coronavirus could remain viable on plastic and metal for up to 72 hours. This means that people can become infected by touching a plastic or other materials. This study also analysed the stability of the virus in the air, where it can attach to aerosols (in liquid or solid form). The researchers could detect the virus in the air for three hours.
A study published last year reported that there were 20 times as many plastic microfibres (of the same size) in the air in London than in the air in a remote spot in the Pyrenees. These microfibres are released from, among others, synthetic clothing. Machine-washing and drying of synthetic clothing are major contributors to the plastic soup with millions of fibres per wash.
If the coronavirus can survive on plastic for two to three days, it is likely also to be the case on synthetic microfibers or plastic dust in the air.
Since plastic does not decay naturally, the concentration of plastic in the environment is increasing continuously. This is also the case for the concentration of microplastics in the air. We breathe them in. The question of whether the presence of microplastics in the air contributes to the likelihood of being infected by COVID-19 has, as far as we know, not yet been investigated.
Therefore, Plastic Soup Foundation hopes that targeted research into the relationship between COVID-19 (and related viruses) and microplastics in the air will be carried out very soon.
The level of microplastic pollution in the air can be analysed from spiders’ cobwebs as they catch more than just insects.
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