The air quality in five districts of Beijing is moderately polluted. How should people who go out protect themselves?

The Beijing Ecological Environment Monitoring Center recently issued a notice saying that the primary pollutant in Beijing is PM 10, and the five districts of Xicheng, Shunyi, Changping, Yanqing and Tongzhou are moderately polluted due to the backflow of floating dust in the south. Outgoing personnel need to do relevant protective work:

1, people who go out must wear masks first.

Because it is moderately polluted. Harmful substances will be released into the air due to smog, so wear a mask when going out to prevent inhalation of harmful substances. Related research reports that the higher the concentration of PM in smog, the higher the death rate of skin cells and the more patients with allergic dermatitis, so it is best not to go out in foggy days. At the same time, when wearing a mask, wear it according to the instructions. When wearing, you must completely cover your eyes, nose and mouth, and keep the mask close to your face. The better the sealing performance, the better the protection effect. In addition, according to the national standards, the protection level of masks is divided into four levels from low to high: D, C, B and A, corresponding to different air quality conditions. A level corresponds to serious pollution? Use when the concentration of PM2.5 reaches 500 ug/m3; Does level D correspond to moderate and below pollution? , which is suitable for the case that the concentration of PM2.5 is less than or equal to 150 ug/m3. Choose different mask types according to the pollution situation.

2. In moderate haze weather, professional doctors advise not to wear contact lenses to go out.

Because experts believe that contact with eyes is like a vacuum cleaner with particles, which will stick to bacteria and viruses in smog, and eventually lead to eye allergies or infections leading to eye diseases such as keratitis. So we try to wear rimmed glasses when we go out in foggy weather. If you really want to wear contact lenses to go out. Then, when the eyes are uncomfortable, we should wash the contact lenses with contact eye drops in time, and then warm compress the eyes with a towel soaked in warm water for 10~ 15 minutes to take care of our own eyes.

3. In severe haze days, choose to wear bright clothes to go out.

When we go out, whether walking or driving, because the sky is foggy and gloomy, wearing light-colored clothes can't play a warning role, so we need to wear bright-colored clothes, such as red, which can improve our traffic safety.

4. Try to reduce outdoor time.

In the face of moderate smog, outdoor activities or working hours should be minimized, and some unimportant work or activities can be temporarily cancelled or changed. If you go out to exercise outdoors, the exercise will be cancelled, because moderate smog will do more harm to the human body than the benefits of exercise.