More research needed to confirm bottled-water risk

More research needed to confirm bottled-water risk

"WHO, as part of its continuous review of new evidence on water quality, would review the very scarce available evidence with the objective of identifying evidence gaps, and establishing a research agenda to inform a more thorough risk assessment", the World Health Organization spokesperson said.

Analysis of 259 bottles of water, which were produced by 11 brands and bought in nine different countries, revealed that micro-plastics were present in 93% of the samples.

The report also notes that far smaller particles were also identified using a dye that binds to plastic.

"They have been reported in tap water, beer and many other foods, but I think that people will be surprised that nearly all bottled water appears to be contaminated too". The study was supervised by Dr. Sherri Mason, Chair of the Department of Geology and Environmental Sciences at the State University of NY at Fredonia, a leading microplastics researcher.

How ingesting plastics affects humans is still not 100 percent certain as this is an emergent field of study, according to the National Institutes of Health.

Researchers tested almost 260 bottles of water, which included leading brands such as Dasani, Evian, Aquafina, Nestle Pure Life and San Pellegrino. Worldwide brands included Aqua (Indonesia), Bisleri (India), Epura (Mexico), Gerolsteiner (Germany), Minalba (Brazil), and Wahaha (China). They examined over 250 bottles of water from 11 leading national and worldwide brands purchased in nine different countries.

A previous study also found high levels of microplastics in tap water.

The research was conducted on behalf of Orb Media, a U.S-based non-profit journalism organization with which CBC News has partnered.

United Kingdom-based newspaper The Guardian noted a similar study commissioned by environmental group The Story of Stuff which found microplastics in 19 bottled waters in the US, including the brand Boxed Water.

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Microplastics are well known water contaminants, and the teeny tiny particles come from cosmetics to clothing to consumer products made of plastic that naturally break down.

"We don't know all the chemicals in plastics, even".

A few bottles were found to have thousands of particles - the vast majority being the smaller ones that are "probably plastic" - but others from the same pack had virtually none.

The fibres were anywhere between 0.1 millimetre and 1.5mm in size.

- According to UAE and Gulf Standards No. UAE.S GSO 1025: 2014 for bottled water, the pH of water should be between 6.5 - 8.5.

Microbeads - tiny plastic beads found in some beauty products that were banned in the 2015 - are another source of plastics in water.

This amount is much lower compared with what the study found.

Nestlé criticized the analysis, telling CBC that using Nile Red dye could "generate false positives".

Danone, the company behind Evian and Indonesian brand Aqua, told Orb it is "not in a position to comment as the testing methodology used is unclear".

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