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连日来,雾霾天气持续笼罩吉林省,多地PM2.5指数轮创历史新高。雾霾天气里我们如何自我防护?雾和霾从气象角度来讲是两种不同的天气现象,雾的主要特点是近地面层,它的高度大概不超过400米,就是在这以下的气层里面的微小水滴组成的。它的能见度比较低,甚至低到50米这样的能见度。霾主要成分是一种灰尘,通常所说的尘埃,比如硫酸、硝酸这样一些微小的颗
In recent days, fog haze weather continued to cover Jilin Province, many PM2.5 index record high. Fog and haze are two different weather phenomena from a meteorological point of view. The main feature of the fog is the near-surface layer, which has a height of no more than about 400 meters, and is the area below this layer of gas Small droplets inside the composition. Its visibility is low, even as low as 50 meters visibility. The main component of haze is a kind of dust, usually called dust, such as sulfuric acid, nitric acid, such as tiny particles