• Saturday, Sep 18, 2021
  • Last Update : 10:22 pm

OP-ED: An environmental disaster that might last generations

  • Published at 12:21 am November 23rd, 2020
Surgical Mask
Bigstock

Are you disposing of your mask properly?

Face coverings are now a legal requirement in many public spaces around the world. But even before they became compulsory, masks were causing litter problems on land and at sea.

One February beach clean in Hong Kong found 70 masks along 100 metres of shoreline, with 30 more appearing a week later. In the Mediterranean, masks have reportedly been seen floating like jellyfish.

Despite millions of people being told to use face masks, little guidance has been given on how to dispose of or recycle them safely. 

And as countries begin to lift lockdown restrictions, billions of masks will be needed each month globally. Without better disposal practices, an environmental disaster is looming.

The majority of masks are manufactured from long-lasting plastic materials, and if discarded, can persist in the environment for decades to hundreds of years. This means they can have a number of impacts on the environment and people.

Hazardous to people and animals

Initially, discarded masks may risk spreading coronavirus to waste collectors, litter pickers, or members of the public. We know that in certain conditions, the virus can survive on a plastic surgical mask for seven days.

Over the medium to long term, animals and plants are also affected. Through its sheer mass, plastic waste can smother environments and break up ecosystems. Some animals also cannot tell the difference between plastic items and their prey, subsequently choking on pieces of litter.

Even if they do not choke, animals can become malnourished as the materials fill up their stomachs but provide no nutrients. Smaller animals may also become entangled in the elastic within the masks or within gloves as they begin to break apart.

Plastics break down into smaller pieces over time, and the longer litter is in the environment, the more it will decompose. 

Plastics first break down into microplastics and eventually into even smaller nanoplastics. These tiny particles and fibres are often long-lived polymers that can accumulate in food chains. 

Just one mask can produce millions of particles, each with the potential to also carry chemicals and bacteria up the food chain and potentially even into humans.

Littered areas also tend to encourage further littering, making the problem worse.

What you should do

In March, the World Health Organization estimated that 89 million additional disposable masks were needed globally per month in medical settings to combat Covid-19. 

But even with reusable masks, their specific design and how you choose to clean them makes a difference. The University College London team examined the manufacture, use, and disposal of masks that were disposable, reusable, and reusable with disposable filters, to calculate their overall environmental impact. They found machine washing reusable masks with no filters had the lowest impact over a year.

Hand washing masks increased the environmental impact as -- while machine washing uses electricity -- manual washing uses more water and detergent for each mask. Disposable filters also increase the environmental impact because the small filters are often made from plastic similar to the disposable masks, with a filter discarded after every use.

Perhaps surprisingly, the working paper estimates that hand washing reusable masks with disposable filters had the highest environmental impact overall -- higher even than using fully disposable masks.

With all of this in mind, we should take these steps to reduce the impact of wearing a face mask:

1. Use reusable masks without disposable filters. Machine wash them if possible regularly following the instructions for the fabric.

2. Try to carry a spare so if something goes wrong with the one you’re wearing, you don’t need to use or buy a disposable mask.

3. If you do need to use a disposable mask, take it home (maybe in a bag if you have to take it off) and then put it straight into a bin with a lid.

Keiron Philip Roberts is Research Fellow in Clean Carbon Technologies and Resource Management, Cressida Bowyer is Senior Research Fellow in the Faculty of Creative and Cultural Industries, Simon Kolstoe is Senior Lecturer in Evidence Based Healthcare and University Ethics Advisor, and Steve Fletcher Professor of Ocean Policy and Economy at the University of Portsmouth. This article previously appeared on The Conversation UK and has been reprinted by special arrangement.

359
Facebook 358
blogger sharing button blogger
buffer sharing button buffer
diaspora sharing button diaspora
digg sharing button digg
douban sharing button douban
email sharing button email
evernote sharing button evernote
flipboard sharing button flipboard
pocket sharing button getpocket
github sharing button github
gmail sharing button gmail
googlebookmarks sharing button googlebookmarks
hackernews sharing button hackernews
instapaper sharing button instapaper
line sharing button line
linkedin sharing button linkedin
livejournal sharing button livejournal
mailru sharing button mailru
medium sharing button medium
meneame sharing button meneame
messenger sharing button messenger
odnoklassniki sharing button odnoklassniki
pinterest sharing button pinterest
print sharing button print
qzone sharing button qzone
reddit sharing button reddit
refind sharing button refind
renren sharing button renren
skype sharing button skype
snapchat sharing button snapchat
surfingbird sharing button surfingbird
telegram sharing button telegram
tumblr sharing button tumblr
twitter sharing button twitter
vk sharing button vk
wechat sharing button wechat
weibo sharing button weibo
whatsapp sharing button whatsapp
wordpress sharing button wordpress
xing sharing button xing
yahoomail sharing button yahoomail