In which month did Beijing start to enter the smog?

1, the most severe smog in Beijing is the heating period in winter. That is,165438+1From mid-October to early March, the air index fluctuated obviously. The most serious is 65438+ 10 month, followed by 65438+February.

2. Regarding the prevention and control of smog, we can start from the following aspects:

1) Wear a mask. Although wearing a mask cannot guarantee that 100% pollutants will not enter the oral cavity or respiratory tract, wearing a mask is another protective barrier. There are two kinds of masks: traditional and invisible. Traditional breath-holding, you can try invisible nasal congestion, which is light and convenient and has a wide range of protection.

2) Reduce the time for outdoor activities. In this foggy weather, due to the large coverage of harmful air, the frequency of going out is minimized. If you really want to go out, you should also breathe peacefully and take small steps.

3) wear a hat. In smoggy weather, the ability of hair to absorb pollutants can not be underestimated, so wearing a hat can solve this small trouble before going out.

4) Wear long clothes. Don't think that long skirts are heavy and it is difficult to exercise muscles. However, it is worth noting that compared with short clothes, long clothes greatly reduce the contact area between polluted air and the body and have more protection.