Can I swim indoors in foggy weather?

It is not advisable to swim in foggy days, because in heavy polluted weather, the symptoms of patients with heart disease and lung disease will be obviously aggravated, the exercise tolerance will be reduced, and healthy people will generally have discomfort symptoms. Children and the elderly, as well as patients with heart disease and lung disease, should stay indoors and stop outdoor sports. The general population should also reduce outdoor sports, swimming is not suitable.

Haze:

Haze is a combination of fog and haze. Smog is very common in cities. In many areas of China, fog and haze are combined as disastrous weather phenomena for early warning and forecasting, which are collectively called "haze weather".

Haze is the result of interaction between specific climatic conditions and human activities. The economic and social activities of high-density population will inevitably emit a large number of fine particles (PM 2.5). Once the emission exceeds the atmospheric circulation capacity and carrying capacity, the concentration of fine particles will continue to accumulate. At this time, if it is affected by calm weather, it is easy to have a wide range of smog.