Summary:
- Exercising outdoors in highly polluted air, with an Air Quality Index (AQI) of 400 or higher, can have significant negative impacts on our health, especially our heart and lungs.
- The fine particulate matter (PM2.5) in polluted air can enter deep into the lungs, causing inflammation and reducing the efficiency of oxygen exchange, leading to strain on the heart.
- Long-term exposure to such polluted air during outdoor workouts can increase the risk of cardiovascular and respiratory diseases, as well as other health problems.