Chemicals in Nails Salons More Harmful than E-waste, New Study Finds

Nail salon Maniqure owner Lim Pei Xin works on a Squid Game's manicure for a client at her shop in Kuala Lumpur, Malaysia October 14, 2021. (Reuters)
Nail salon Maniqure owner Lim Pei Xin works on a Squid Game's manicure for a client at her shop in Kuala Lumpur, Malaysia October 14, 2021. (Reuters)
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Chemicals in Nails Salons More Harmful than E-waste, New Study Finds

Nail salon Maniqure owner Lim Pei Xin works on a Squid Game's manicure for a client at her shop in Kuala Lumpur, Malaysia October 14, 2021. (Reuters)
Nail salon Maniqure owner Lim Pei Xin works on a Squid Game's manicure for a client at her shop in Kuala Lumpur, Malaysia October 14, 2021. (Reuters)

A recent University of Toronto study, in collaboration with the Occupational Cancer Research Center, Center for Research Expertise in Occupational Disease, and the Parkdale Queen West Community Health Centre, shows that nail technicians in salons are exposed to several chemicals widely used as plasticizers and flame retardants.

The study, published Feb. 14 in the journal Environmental Science and Technology, found that exposure to some hazardous chemicals was higher among nail technicians than among electronic waste workers.

"We were very surprised to find exposures for some chemicals up to 30 times higher among nail salon workers relative to exposures in homes, and up to 10 times higher than in e-waste handling facilities," said co-author Miriam Diamond in a report.

The study reported higher exposures of several phthalate plasticizers, which was expected given the use of these chemicals in personal care products. One phthalate plasticizer, DEHP, which is not allowed for use in cosmetics under the Canadian Environmental Protection Act, was found at low levels.

"The finding of low exposure to the plasticizer DEHP is important -- it shows the current regulations for this compound are working," Diamond said. However, what was unexpected was the finding of some high levels of flame retardants that are not known to be used in personal care products. These chemicals have been associated with adverse health effects including neurological and reproductive effects, with some evidence that in utero exposure may be important.

This study points to the need to consider the wide range of workplace settings when regulating chemical use in Canada. Study authors urge government and product manufacturers to make safer personal care products and safer spaces for workers and customers in the personal services sector.

"We are proud of the work we do, and we would like our workplaces to be safer," said Jackie Liang, nail technician and Community Health Worker at Parkdale Queen West Community Health Center.



Baker, Hassabis, Jumper Win 2024 Nobel Prize in Chemistry

 A view of the sign for the Nobel Prize in Chemistry in the Royal Swedish Academy of Sciences ahead of the announcement of the 2024 Nobel Prize in Chemistry in Stockholm, Sweden, October 9, 2024. (Reuters)
A view of the sign for the Nobel Prize in Chemistry in the Royal Swedish Academy of Sciences ahead of the announcement of the 2024 Nobel Prize in Chemistry in Stockholm, Sweden, October 9, 2024. (Reuters)
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Baker, Hassabis, Jumper Win 2024 Nobel Prize in Chemistry

 A view of the sign for the Nobel Prize in Chemistry in the Royal Swedish Academy of Sciences ahead of the announcement of the 2024 Nobel Prize in Chemistry in Stockholm, Sweden, October 9, 2024. (Reuters)
A view of the sign for the Nobel Prize in Chemistry in the Royal Swedish Academy of Sciences ahead of the announcement of the 2024 Nobel Prize in Chemistry in Stockholm, Sweden, October 9, 2024. (Reuters)

Scientists David Baker, Demis Hassabis and John Jumper won the 2024 Nobel Prize in Chemistry, the award-giving body said on Wednesday, for work on the structure of proteins.

The prize, widely regarded as among the most prestigious in the scientific world, is awarded by the Royal Swedish Academy of Sciences and is worth 11 million Swedish crowns ($1.1 million).

Half the prize was awarded to Baker "for computational protein design" while the other half was shared by Hassabis and Jumper "for protein structure prediction", the academy said.

The third award to be handed out every year, the chemistry prize follows those for medicine and physics announced earlier this week.

The Nobel prizes were established in the will of dynamite inventor and wealthy businessman Alfred Nobel and are awarded to "those who, during the preceding year, shall have conferred the greatest benefit to humankind".

First handed out in 1901, 15 years after Nobel's death, it is awarded for achievements in medicine, physics, chemistry, literature and peace. Recipients in each category share the prize sum that has been adjusted over the years.

The economics prize is a later addition funded by the Swedish central bank.

Chemistry, close to Alfred Nobel's heart and the discipline most applicable to his own work as an inventor, may not always be the most headline-grabbing of the prizes, but past recipients include scientific greats such as radioactivity pioneers Ernest Rutherford and Marie Curie.

Last year's chemistry award went to Moungi Bawendi, Louis Brus and Aleksey Ekimov for their discovery of tiny clusters of atoms known as quantum dots, widely used today to create colors in flat screens, light emitting diode (LED) lamps and devices that help surgeons see blood vessels in tumors.

Alongside the cash prize, the winners will be presented a medal by the Swedish king on Dec. 10, followed by a lavish banquet in Stockholm city hall.