Visibility is low in foggy days in many places: you can't see your fingers.

Fog visibility is a concept in meteorology, which refers to the farthest distance that people can see in foggy days.

In foggy days, because there are a lot of tiny particles and water droplets in the air, the light is scattered and absorbed, which greatly reduces the visibility. At this time, even the clearest sight cannot penetrate the fog, and people can only see the outline of nearby objects, while the distant scenery becomes blurred. Fog visibility is a concept in meteorology, which refers to the farthest distance that people can see in foggy days.

In order to cope with the influence of foggy weather, people have taken various measures. In highway traffic, fog lights and anti-fog glass can be used to improve driving safety. In the aviation field, the distribution and flow direction of fog can be obtained by weather radar, satellite cloud images and other technologies, and measures such as flying around and delaying can be taken to ensure flight safety. In addition, the government and relevant departments also need to strengthen the early warning and emergency response mechanism, and release early warning information of heavy fog in time to remind the public to pay attention to safety.

Hazards of foggy weather

1, foggy weather has great influence on traffic safety. Due to the low visibility, it is difficult for drivers to see the vehicles and pedestrians in front, which is prone to traffic accidents. Especially in places with heavy traffic, such as highways and intersections, foggy days can easily lead to traffic jams and vehicle collisions, threatening people's lives and property.

The foggy weather also has a great influence on people's health. Due to the high air humidity in foggy days, pollutants are not easy to spread, which is easy to cause poor air quality and adversely affect human health. Especially the elderly, children, pregnant women and the infirm, are more susceptible to air pollution and have symptoms such as respiratory diseases and eye discomfort.

3. The foggy weather also affects agricultural production and fishery. Due to insufficient light in foggy days, it will affect the photosynthesis and growth of plants and the yield of crops. At the same time, in foggy weather, the visibility of the ocean is very low, which is easy to cause fishing boat collisions and fishery accidents.