Letters | In coronavirus battle, Hong Kong must count the long-term costs of throwaway masks and other plastics
- Thermoplastics, the key material in surgical masks, are virtually indestructible
- Masks, plastic takeaway and delivery packaging are being thrown away in greater quantities due to the public’s fear of going out. Dispose responsibly
As everyone in Hong Kong tries to stay healthy and safe amid the novel coronavirus outbreak, surgical masks have become routine attire – and the city’s single biggest disposable item.
The common materials used in these surgical masks are thermoplastics such as fibreglass paper and polypropylene. These materials do the job very well, in that they let the wearer breathe while keeping dangerous pathogens out. This non-woven, cloth-like material (thermoplastics) is key but, like all plastics, virtually indestructible.
These hazardous and malignant chemicals can have a serious impact on our health, raising the risk of cancer and other lethal illnesses. When we throw away large numbers of these surgical masks, it amplifies this effect to alarming levels.
As Covid-19 triggers worries about our physical and social well-being, Hongkongers are going out, hiking with friends and to parks, beaches and green spaces. Getting exercise, socialising or just getting out is really important. However, with the lack of rubbish bins in these areas, many masks are left everywhere, adding to the trash in these public spaces.