Summary

When Environment and Climate Change Canada (ECCC) urged Montrealers to limit outdoor activity during Canada's worst wildfire smoke episodes, the city's travel patterns shifted—but far less than public health officials might have hoped, according to a new McGill University study published in Health & Place . Researchers at the university's Platial Analysis Lab examined how Montrealers were moving during 27 days in 2022 through 2025 when smoke-related air quality advisories were in effect.

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