Is running in foggy weather good for your health?

It's best not to run in foggy days, let alone foggy days, because

In foggy days, the air pollution is heavy and there are many harmful substances. When pollutants combine with water vapor in the air, it becomes difficult to spread and settle. Most pollutants gather at the height where people often move. Moreover, the combination of some harmful substances with water vapor will make it more toxic, such as sulfur dioxide becomes sulfuric acid or sulfite, chlorine hydrolyzes into hydrogen chloride or hypochlorous acid, and fluoride hydrolyzes into hydrogen fluoride, so air pollution in foggy days is much more serious than usual.

Small water droplets floating in the low altitude dissolve some soluble harmful substances, such as acid, alkali, salt, amine, benzene, phenol and so on. At the same time, some harmful dust, pathogenic microorganisms and foreign protein will be attached. When running in foggy days, these harmful substances are inhaled in large quantities and remain in the human body, which aggravates the damage of harmful substances and easily causes tracheitis, pharyngitis, conjunctivitis or allergic diseases.

Running in foggy days is also easy to get tired.

Because fog and water vapor will hinder the gas exchange between oxygen and carbon dioxide in alveoli, so that body organs and tissues are deprived of oxygen. Therefore, when running in the fog, it is easier to feel poor breathing, chest tightness and discomfort, dizziness due to lack of oxygen in the brain, and fatigue.

Another is that running in foggy days is prone to accidents.

The line of sight is unclear, and accidents such as collisions and falls are prone to occur on busy streets and roads, so it is best not to run in foggy days.