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Wednesday, September 4, 2024

Kids Are Headed Back to School. Are They Breathing Clean Air?

Clean indoor air protects against diseases such as COVID and flu, but we’re not doing enough to ensure it


Across the U.S., kids are headed back to their classrooms—just as COVID nears a fresh, late-summer peak. Somehow, four years into a viral pandemic that everyone now knows spreads through the air, most schools have done little to nothing to make sure their students will breathe safely.

We—and especially our children—should be able to walk into a store or a gym or a school and assume the air is clean to breathe. Like water from the faucet, regulations should ensure our air is safe.

“Air is tricky. You can choose to not partake of the water or the snacks on the table, but you can’t just abstain from breathing,” notes Gigi Gronvall, senior scholar at the Johns Hopkins Center for Health Security and an author of a 2021 report on the benefits of improving ventilation in schools.

The COVID-causing virus SARS-CoV-2 is far from the only airborne risk in schools. There are also other respiratory viruses, smoke from wildfires, mold spores, off-gassing from plastics and other compounds, air pollution from traffic and industry, and allergens that worsen asthma and add to sick days. Yet federal air standards are stuck in the 1970s, when they were mostly aimed at protecting people from secondhand tobacco smoke, says Joseph Allen, director of the Healthy Buildings Program at the Harvard T. H. Chan School of Public Health. Fully updated standards for buildings are years or even decades away.

It’s hard to assess just what schools have or haven’t done to improve indoor air quality. No one—not one federal agency—collects nationwide air quality data on individual schools. Schools could use federal money to update air filtration and ventilation during the height of the pandemic. But a 2022 Centers for Disease Control and Prevention survey of school districts found that only half had taken simple steps such as opening windows or doors or using fans, and even fewer had upgraded ventilation systems...

Kids Are Headed Back to School. Are They Breathing Clean Air? | Scientific American

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