Copper deadly to bacteria, study shows

Results of a study led by Metro Vancouver's transit operator reveal copper on high-touch surfaces is lethal to bacteria.

A statement from TransLink says the findings of the industry-leading trial show copper products kill up to 99.9 per cent of all bacteria within one hour of surface contact.

As part of its response to the COVID-19 pandemic, TransLink was the first transit agency in North America to test copper on high-touch surfaces.

The pilot study was launched after unrelated studies showed copper is both durable and effective at killing germs.

Phase 1 of the pilot, which was fully funded by mining firm Teck Resources, began last November and continued for five weeks on surfaces of two buses and two SkyTrain cars.

A second phase will begin in the coming months using a larger sample to verify the results, testing copper over a longer period on more transit vehicles, and focusing tests on the most effective products identified from Phase 1.

TransLink interim CEO Gigi Chen-Kuo says they are excited to find out more about the impact of copper on viruses such as the ones that cause COVID-19.

"This research could help us, other transit agencies, and anyone with surfaces in shared public spaces keep high-touch areas as clean as possible,” she says in the statement.

The project stems from a partnership between TransLink, Teck, Vancouver Coastal Health, the University of British Columbia and the VGH & UBC Hospital Foundation.

Teck funded the initial phase as part of its Copper & Health program and the company will also support Phase 2.