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Can't Google right now but there was a story about, I think, Californian schools that installed air purifiers to deal with some kind of temporary pollution prob
by whalabi 5y ago
Can't Google right now but there was a story about, I think, Californian schools that installed air purifiers to deal with some kind of temporary pollution problem (fires?), and apparently they then found that after the problem had ended, the students in schools or rooms with air purifiers scored higher in some sort of testing.
(Pardon the vagueness, I'll edit later if I can)
- barathr 5y agoIt was Porter Ranch, due to a gas leak: https://www.latimes.com/local/lanow/la-me-ln-air-purifiers-for-schools-near-porter-ranch-20160128-story.html https://www.latimes.com/local/lanow/la-me-ln-air-purifiers-f... (Not that leaking gas would get meaningfully filtered by the average air purifier.) This study found improvements due to the air purifiers: https://www.edworkingpapers.com/sites/default/files/ai20-188.pdf https://www.edworkingpapers.com/sites/default/files/ai20-188...
- whalabi 5y agoThat's the one. From the conclusion: > Indeed, with a benefit-to-cost ratio of 0.2σ increase in test scores per $1,000 of expenditure, air filter installation is one of the most cost-effective education policies available to policymakers today. > Specifically, economically disadvantaged students disproportionately attend schools in highly-polluted regions. Given this, installing air filters in polluted regions should both raise student achievement and reduce the pervasive test score gaps that plague public education.