Filtering diesel exhaust could make it worse
![](https://www.popsci.com/sites/popsci.com/files/styles/1000_16x9/public/images/2019/04/diesel_exhaust.jpg?itok=8s9mB4kN&fc=50,50)
![diesel exhaust](https://www.popsci.com/sites/popsci.com/files/styles/1000_16x9/public/images/2019/04/diesel_exhaust.jpg?itok=8s9mB4kN&fc=50,50)
For those with allergies, supposedly cleaner fumes can mean worse lung function
Diesel exhaust is dirty, and a big contributor to the 4 to 7 million annual air pollution-caused deaths around the globe. It’s intuitive, then, that any effort to clean…
via Popular Science "http://bit.ly/2IEEGOB"
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