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How to Risk-Rank a Building Portfolio for Radon Testing
Rank on five factors: regional radon potential, ground-contact area and foundation type, occupancy pattern, which floors people actually work on, and building age and construction. The Canadian evidence supports all... Read more...
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Workplace Radon Compliance Timeline: Why Testing Starts in Fall 2026
January 30, 2027 is the legal date; fall 2026 is the measurement date. An employer who places long-term detectors by early November 2026 has a defensible annual-average measurement in hand... Read more...
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Workplace Radon in Canada: 30 Questions Answered
Federally regulated employers must ensure no employee is exposed to an annual average above 200 Bq/m³ from 30 January 2027. Provincially regulated employers have no radon-specific number but owe a... Read more...
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Canada's New Workplace Radon Limit: SOR/2026-10 Explained
From January 30, 2027, federally regulated employers in Canada must ensure no employee's radon exposure averages more than 200 Bq/m³ over a year — a fourfold tightening of the previous... Read more...
Flat illustration of a civic office building with a symmetrical facade and wide front steps.
Workplace Radon Rules by Province in Canada
Federally regulated workplaces get a hard 200 Bq/m³ annual-average limit on January 30, 2027. Read more...