UBC and VIU scientist looking at ways to mitigate damage caused by rubber protectant chemical
Scientists at the University of British Columbia are experimenting with ways to keep chemicals shed by vehicle tires from entering waterways and causing widespread coho salmon deaths.
What if, thought post-doctoral fellow Timothy Rodgers, rainfall could pass through rain gardens that would act like a Brita filter before hitting urban streams? The next step is identifying where to put these systems so that they have the biggest impact. In B.C.’s Lower Mainland, Scholes and Rodgers’ team are working on identifying these areas, partnering with municipalities including Vancouver and Surrey. Vancouver has the goal of installing more green rain water infrastructure solutions, including rain gardens, under the Rain City Strategy.
“What we have to do is prevent it from getting into these urban streams in the first place,” Krogh said. Work is underway to find replacement chemicals for tires in the U.S., but possible solutions, including other PPD variants are not perfect, Rodgers says. Even if one is found, the average consumer keeps their tire for five years, he adds, so it would take years before tires containing the chemical are circulated off roads.
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