#air quality
2 entries
- Library ·
The NASA Clean Air Study — a review
The 1989 NASA report that launched a thousand 'air-purifying plant' listicles. The science is real but narrow — and almost universally misread. A careful look at what Wolverton's team actually measured, why it doesn't mean what the internet thinks it means, and what Wolverton himself did next.
- Article
How Many Plants Do You Actually Need? The Research Might Surprise You
NASA published a clean air study in 1989 and it's been misquoted ever since. Here's what the research actually says about plant density, air quality, and the point at which more stops helping.