As if the ongoing Coronavirus pandemic wasn’t bad enough as is, poor air quality could be making the virus even more deadly. The virus manifests differently amongst individuals, with many being asymptomatic while proving fatal to many others. The elderly and immunocompromised are more at risk as the data from the Chinese Center for Disease Control and Prevention suggests. Similarly, poor air quality and smoking, for instance, can cause lung inflammation and leave the body prone to more severe Coronavirus symptoms. More research is required however, to prove the connection between the two, as more and more experts have begun to lean in favor of the hypothesis.
For more detail, checkout the article by Washington Post and by The Guardian.