Is it okay to run in foggy weather in the morning?

Fog is an aerosol composed of tiny droplets suspended in the atmosphere. In foggy weather, pollutants in the air combined with water vapor will become difficult to diffuse and settle, and most of the pollutants are concentrated at heights where people frequently move. In addition, some harmful substances will become more toxic when combined with water vapor. For example, sulfur dioxide and water combine to form sulfuric acid. Exercising outdoors in foggy days can easily cause harmful substances to harm the respiratory system. If you exercise outdoors in foggy weather for a long time, the human body will inhale harmful substances, which can easily induce or aggravate some diseases, such as bronchial asthma, pneumonia, etc. Therefore, it is best to reduce the time for outdoor activities in foggy days. Protective measures must also be taken during outdoor activities, such as wearing masks, scarves, hats, etc. People who are sensitive to the environment must take protective measures.

On foggy days, you can choose to exercise indoors to avoid being exposed to harmful substances.