Air pollution can increase the risk of COVID infection and severe disease – a roundup of what we know

Tatiana Grozetskaya/Shutterstock The early part of the COVID pandemic led to a significant reduction in air pollution in many parts of the world. With lockdowns, travel restrictions and decreased economic activity, there was a noticeable drop in the emission of air pollutants, such as nitrogen dioxide (NO₂) and particulate matterContinue Reading