New Brunswick Reverses Decision on School Air Quality Testing

After initially limiting air quality tests to schools with new ventilation systems, New Brunswick’s government reversed course—now committing to test all schools without proper ventilation until upgrades are complete. The province had scaled back its CO₂ monitoring program this year, sparking criticism from experts who argue poor air quality harms student health and learning.

CO₂ levels above 1,500 ppm—exceeded in 56% of tested schools—indicate inadequate ventilation, raising risks for respiratory illnesses. Some schools hit alarming peaks over 3,500 ppm, including those with new systems. HVAC engineer Joey Fox condemned the original rollback, stressing that testing is vital even in schools lacking mechanical ventilation, as temporary measures like open windows can help.

While the province aims to complete upgrades by 2026-27, experts warn its 1,500 ppm threshold is too lax—recommending 800 ppm for optimal air quality. With 95% of tested schools exceeding this safer limit, advocates demand transparency and faster action to protect students.