What is the national air quality ranking? What should I do if I encounter foggy weather?

National air quality ranking It is reported that last month, the average number of excellent days in the first 74 cities that implemented the new air quality standards was 68.4%. Among them, the proportion of excellent days in Kunming, Lhasa and Lishui is 100%, that in Xiamen, Huizhou and Fuzhou is 80% ~ 100%, that in Zhangjiakou, Jiaxing and Shaoxing is 50% ~ 80%, and that in Zhengzhou, Jinan and Xi 'an is less than 50%.

1. According to the comprehensive index of urban ambient air quality, among the four cities, 10 cities with relatively poor air quality are Xingtai, Tangshan, Zhengzhou, Shijiazhuang, Hengshui, Baoding, Handan, Jinan and Beijing (from 1 to 65438+) with relatively good air quality. The reporter learned from Guiyang Ecological Committee that. Except ozone (O3), the primary pollutant in other districts (cities, counties) of qingzhen city is fine particulate matter pm 2.5, and the proportion of days reaching the standard in Guiyang increased from 82.8% to 96.8%, increasing by 14.0 percentage points.

Second, according to the analysis of environmental experts, the regional air quality in the province is mainly good, with more excellent days and mild pollution at the end of the month. The main reasons are relatively unfavorable atmospheric diffusion conditions and the discharge and accumulation of local pollution sources. It is expected that in April, our province will still be affected by the southerly warm and humid airflow, with high humidity, abundant rainfall and excellent air quality. At the same time, with the increase of light intensity, O3 is easy to exceed the standard, and some days it can be slightly polluted. Reduce going out and strenuous outdoor exercise. Needless to say, indoor air is much stronger than outdoor air, so severe smog needs to reduce outdoor activities and sports. Reasonable protection. How to protect yourself? Put on pants, hat and mask.

Third, this is a necessary friendly reminder. It is best to use an anti-PM2.5 mask, which can effectively filter the exquisiteness of the PM2.5 window. Generally speaking, it is best to open the window around noon 12, because the smog pollution index is the lowest at 12. The way you walk. If you must go out, walk faster, faster and reduce the walking distance. Don't run, come on, get back indoors as soon as possible. Food reaction. Eating more new shoes, fruits and foods with high fiber content will help to expel PM2.5 inhaled.