Vaping certainly does damage air quality by releasing ultafine aerosol particulate matter (also known as pm10 or pm2.5) [0]. It's worth noting that these are associated with respiratory distress and can contribute to stroke and heart attacks as well as asthma. In fact, we now have compelling epidemiological evidence that vaping almost doubles risk of cardiac events [1].
Think about it like this: would I want to run a marathon on a bad air day in China? Probably not.
Edit:
Study 1 focused on PM10 (particulate matter smaller than 10 microns) air quality levels, and not PM2.5. PM 10 tends to be associated with more acute respiratory distress, while PM2.5 is a more chronic threat [2]. Nevertheless, there is sufficient evidence that monitoring environmental PM10 levels remains an important public health metric.
Think about it like this: would I want to run a marathon on a bad air day in China? Probably not.
[0]. https://www.nature.com/articles/s41370-017-0005-x?fbclid=IwA... [1]. https://www.ucsf.edu/news/2018/08/411476/risk-heart-attacks-...
Edit: Study 1 focused on PM10 (particulate matter smaller than 10 microns) air quality levels, and not PM2.5. PM 10 tends to be associated with more acute respiratory distress, while PM2.5 is a more chronic threat [2]. Nevertheless, there is sufficient evidence that monitoring environmental PM10 levels remains an important public health metric.