When Wind Blows From This Direction, Shanghai’s Pollution Is 5 Times More Likely to Be Toxic

Calvin Quek from Greenpeace analyzed how PM2.5 changes with depending on which way the wind is blowing in Shanghai:

The data is simple. When the wind is coming from the industrialized areas to the west of Shanghai, toxic air pollution is more likely.

When the wind blows in from the ocean, bad air days are much less likely.

In Beijing, the situation is different.

Special thanks to Calvin Quek (Twitter @clearroads), who did the original analysis and made the graphs here.


Get Your Free Guide to Breathing Safe

Join the thousand keeping up on the latest research & knowledge on how to breathe safe. Sign up now and receive a free guide to breathing safe!

Subscribe
Notify of
0 Comments
Inline Feedbacks
View all comments

Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.