Beijing issued a blue warning signal for sandstorms. What does the blue warning usually stand for?

When Beijing issues the blue warning signal of dust, there will be dust weather, so villagers should pay attention. When sandstorm weather happens, the sky is gray and there are sandstorms everywhere, which brings great inconvenience to people's travel. Close the doors and windows when the dusty weather comes. Minimize going out. If you have to go out because of work needs, you can wear goggles, masks and sand shields, which can reduce the harm caused by wind and sand blowing into your mouth.

People who are allergic to sandstorms in Beijing can wear long-sleeved trousers. When they get home, they should take off their clothes and wash their faces and noses in time. You'd better wear brightly colored clothes. Visibility is very low in dusty weather. Wearing brightly colored clothes is more conspicuous and can also remind drivers to avoid. People with respiratory allergies in dusty weather should try not to take part in outdoor activities to avoid damaging their health.

When the blue warning signal is issued, you should also avoid billboards and reinforce fences when walking outdoors. Such a structure is easy to fall off after being blown by the wind, which is very dangerous to hit pedestrians. Try not to drive in dusty weather, and drive carefully if you want. Reduce the speed to a minimum to prevent traffic accidents. In the windy and dusty weather, people's mood is very low. When they see a gray day outside, they will feel very uneasy and depressed. Residents can have fun at home, chat with relatives and friends, and eat melon seeds to relax.

What does a blue warning usually mean? Don't take your clothes outside to dry in windy and dusty weather. There is dust in the air, which is very dirty. Blue warning generally refers to the degree of danger of meteorological disasters. The blue alert is general. Try not to take part in outdoor activities after the blue warning appears. Children can do their homework at home. The blue warning is also the most general level, so people don't have to panic excessively. If there is a red warning, it will be very serious.