Researchers said they hope their study will sound a warning to manufacturers of contact lenses, and encourage users to dispose of them properly with other solid waste. Microplastics - that is, bits of plastics that continually break down into smaller and smaller bits - are a massive problem, and contact lenses are only making things worse.
"This is a pretty large number, considering roughly 45 million people in the US alone wear contact lenses, amounting to 1.8-3.36 billion lenses flushed per year, or about 20-23 metric tons of wastewater-borne plastics annually". The study concluded that microbes in the wastewater treatment facility actually altered the surface of the contact lenses, weakening the bonds in the plastic polymers. Perhaps they could start putting a label in the packaging of contact lenses that details proper disposal methods, said Rolf Halden, one of the authors.
'With the toilet, although it might be tempting you shouldn't flush wet wipes, kitchen roll or anything other than toilet roll down the loo, ' Michelle Ringland, head of marketing at Lanes Group tells Metro.co.uk.
Alternatively, wearing monthly contact lenses or glasses more often would also help reduce plastic waste.
About 15 to 20 percent of contact wearers are flushing the lenses down the sink or toilet in the United States and roughly 45 million people in the USA wear contact lenses, according to the study. The team collected parts of the lenses from the sludge and analyzed them.
The American Optometric Association recommends that patients recycle their contact lenses (and contact cases, boxes and solution) if they live in an area that allows for it. They may be eaten by some aquatic organisms which mistake them for actual food and they can end up hurting a large segment of the food chain as they pass from one animal to another.
The answer, Halden believes, isn't to ban contact lenses. Halden said the researchers tested 11 brands of contacts and found that they don't degrade during the treatment process but tear into smaller and smaller pieces. That amounts to "about 20 to 23 metric tons of wastewater-borne plastics annually", said Charles Rolsky, the study's lead author, according to a post on ASU's website.
These differences make processing contact lenses in wastewater plants a challenge.
According to the researchers, these materials are not routinely screened for environmental monitoring studies, which is why pollution from contact lenses has avoided detection until now.
According to the latest data from the Association of Contact Lens Manufacturers, over three million people in the United Kingdom wore contact lenses in 2017 and 1.5million of those wore daily disposables - meaning hundreds of millions of the tiny pieces of plastic are being chucked each year. "They contribute a load of at least 20,000 kilograms per year of contact lenses", Halden said.
I got cut and rejected from every audition - not tall enough, not blend-in enough, not 12-octave range enough, not pretty enough. She spoke at length about her own start in the business and her own career before thanking Franklin for "empowering all of us.
The smoky pollution, even in Colorado, came from wildfires in British Columbia and the Cascade Mountains in the Northwest. Swaths of western Canada have been blanketed by a smoky haze from over 550 fires burning across the west coast province.
This illustration picture taken on April 29, 2018, shows the Google logo displayed on a screen and reflected on a tablet. Google has since its early years maintained a list of "10 things" that represent foundational values for the company.
As mentioned above, The Nokia 6.1 Plus price in India is the most eagerly awaited piece of information from the launch event. The device has a 5.5 Inch Full HD Display along with Corning Gorilla glass and comes with a 1920 x 1080 pixels resolution.
First, contact lenses are transparent, which makes them hard to observe in the complicated milieu of a wastewater-treatment plant. The fragments are heavier than water, so they settle into the treated sewage sludge, which is often spread on land.
If Jones has not recovered in time, Mourinho is sure to consider using a back three with Smalling flanked by Bailly and Lindelof. Last season, it took them nine goals before they shipped four goals and it was five the previous year.
The 1976 album eclipses Jackson's Thriller , which is a certified 33x platinum, relegating it to second place, the AP reports . The band was inducted into the Rock and Roll Hall of Fame in 1998 and received the Kennedy Center Honor in 2016.
Millions of Muslims are expected to complete the Hajj which all able-bodied Muslims are required to complete once in their lives. Eid Mubarak to all! Lots of duas is all I request and just wanted to wish you all the BEST! I always hug them with my prayers.
But Alastair Cook (nine not out) and Keaton Jennings (13 not out) took them to a close score of 23 without loss. James Anderson though bowled a superb spell on Monday morning and didn't let the batsmen score easily.
A year ago the Crimson Tide became the first AP preseason No. 1 to win a national championship since Southern California in 2004. The AP Top 25 may not have a direct impact on the national championship race anymore, but the exercise still has value.
China 'likely training for strikes' on US targets
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800,000 displaced in flooding in southern Indian state
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Chicago White Sox Nun First Pitch is Cardinals Fan
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MSI unveils first custom NVIDIA GeForce RTX GPU Series
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Australian prime minister declares leadership open: spokesman
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Colorado man charged in deaths of pregnant wife, daughters
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North Korea Sees Rise in Popularity For Foreign Video Games
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Pepsi is buying SodaStream for $3.2 billion
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