Questions for ‘Tiny air pollutants inflame airways and harm heart’
![860_main_questions_air_pollutants.png](https://www.snexplores.org/wp-content/uploads/2019/11/860_main_questions_air_pollutants.png)
A street scene in India, a nation where crowds of people, traffic and industry frequently lead to heavy air pollution.
Onnes/iStockphoto
A street scene in India, a nation where crowds of people, traffic and industry frequently lead to heavy air pollution.
Onnes/iStockphoto
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