What should I do if the smog is so big?

First of all, minimize the time of outdoor exposure and reduce the intensity of outdoor activities. In particular, people with chronic diseases such as cardiovascular and cerebrovascular diseases should reduce outdoor activities in foggy days. Because it is easy to induce myocardial infarction, angina pectoris and other diseases due to hypoxia at this time. Medical experts suggest that when there is moderate or severe haze weather, the elderly and infirm should reduce going out. Adolescent physique experts suggest that children should still adhere to physical exercise that meets their growth and development needs in foggy days.

Secondly, pay attention to improving indoor air quality. The outdoor air quality is poor in foggy days, and the indoor air quality cannot be completely spared. Experts suggest that doors and windows should be kept closed in foggy days to reduce the permeability of air pollutants from outdoor to indoor and reduce the indoor PM 2.5 concentration. You can choose an indoor air purifier with brand reputation, or you can plant green plants indoors to reduce indoor dust and PM 2.5 concentration.

Thirdly, when you have to go out, pay attention to strengthening self-protection and choose the appropriate dust mask. Although there is no national standard for civil anti-fog masks, the quality of masks on the market is mixed. However, medical experts suggest that when choosing masks, people should try to choose dense materials to block particles to the maximum extent. At the same time, pay attention to whether the mask has an adsorption layer, which can adsorb particles that penetrate the mask.

Finally, pay attention to adjusting the diet structure. Experts suggest that you should drink more water in foggy days and adjust your diet appropriately. The diet is mainly light. Lack of vitamin A will damage the function of respiratory epithelium and immunoglobulin, and easily cause respiratory infection. You can eat more foods rich in vitamin A and beta-carotene. Eating lotus seeds, lilies, sparerib soup, tremella soup, duck porridge and other foods has the effect of nourishing the lungs. Because of individual differences, it is better to choose a lung-moistening diet according to your own situation.