Three-level heavily polluted weather

Heavy pollution weather warning is divided into yellow, orange and red warning.

The early warning of heavy polluted weather is based on the 24-hour average of air quality index (AQI), which can be calculated across natural days. According to the scope of pollution, early warning is divided into provincial early warning and urban early warning; According to the factors such as the duration of heavily polluted weather, the scope of influence and the degree of harm, the early warning is divided into three levels: yellow, orange and red.

Corresponding to the early warning level, the emergency response level of heavily polluted weather is divided into three levels, from low to high, which are III, II and I respectively. Issue a yellow warning and start a level III response. The emission reduction ratio of sulfur dioxide, nitrogen oxides, particulate matter and volatile organic compounds in cities in early warning areas should reach more than 10% of the whole city.

Issue a provincial orange warning and start a level II response. The emission reduction ratio of urban sulfur dioxide, nitrogen oxides, particulate matter and volatile organic compounds in the early warning area should reach more than 20% in the city. Issue a provincial red warning and start a level I response. The emission reduction ratio of sulfur dioxide, nitrogen oxides, particulate matter and volatile organic compounds in cities in early warning areas should reach more than 30% in the city.

Matters needing attention when traveling in heavily polluted weather

First, please pay more attention to the weather forecast and real-time traffic information before going out, try to avoid foggy weather, especially for beginners, please try to choose public transportation.

Two, before going out, the windshield, headlights and taillights should be wiped clean, and check whether the vehicle lighting, braking and other safety facilities are complete and effective. Triangle warning signs or other warning signs should also be carried to prevent sudden failure.

Three, strictly abide by the provisions of the turn signal, turn on the anti fog lights and width lights (anti fog lights and width lights on during the day, turn on the low beam or width lights at night), do not turn on the high beam, and control the speed according to the visibility.

Fourth, keep a safe distance. When visibility is low, you should walk as slowly as possible, especially keep a safe distance from the car in front, and don't follow too closely. Never overtake blindly. When driving in corners and ramps, you should slow down in advance to avoid changing speed, stopping or stalling in the middle.

When you have to go out, please take personal protective measures, such as wearing a mask.

Baidu Encyclopedia-Warning Signal of Heavy Pollution Weather