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

in March p>216, the national air quality ranking was released, and Haikou ranked first. What is the ranking of your city? When air pollution is serious, smog is easy to appear. What should I do if I encounter smog?

National Air Quality Ranking

It is reported that the average number of excellent days in the first batch of 74 cities that implemented the new air quality standards last month was 68.4%. Among them, the proportion of excellent days in Kunming, Lhasa and Lishui is 1%, Xiamen, Huizhou and Fuzhou are 8%~1%, Zhangjiakou, Jiaxing and Shaoxing are 5%~8%, and Zhengzhou, Jinan and Xi 'an are less than 5%.

according to the comprehensive index of urban ambient air quality, among the 74 cities in March, 1 cities with relatively poor air quality (from 74th to 65th) were Xingtai, Tangshan, Zhengzhou, Shijiazhuang, Hengshui, Baoding, Handan, Jinan, Xi and Beijing. The 1 cities with relatively good air quality (from 1st to 1th) are Haikou, Zhoushan, Lhasa, Huizhou, Xiamen, Kunming, Shenzhen, Zhuhai, Lishui and Guiyang.

The reporter learned from Guiyang Ecological Committee that in March, the proportion of days that reached the standard in all districts (cities and counties) in Guiyang was between 74.2% and 1%. Except ozone (O3), the primary pollutants in other districts (cities and counties) in qingzhen city are fine particles (PM 2.5). Compared with February, in March, the proportion of days up to standard in Guiyang increased from 82.8% to 96.8%, an increase of 14. percentage points.

according to the analysis of environmental experts, in March, the regional air quality in the whole province was mainly good, with more excellent days and slight pollution at the end of the month. The main reasons are relatively unfavorable atmospheric diffusion conditions and the emission 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.

what should I do if I encounter smog weather?

First, reduce going out and strong outdoor sports

It goes without saying that indoor air is much stronger than outdoor air in smog weather, so outdoor activities and sports need to be reduced in severe smog weather.

second, reasonable protection

how to protect yourself? Wear trousers, a hat and a mask. This is a necessary friendly reminder (it is best to have a mask against PM2.5, which can effectively filter PM2.5)

Third, it is important to open the window

Generally speaking, it is best to open the window around 12 noon, because the smog pollution index is the lowest at 12 o'clock.

Fourth, the way of walking

If you must go out, walk fast and reduce the walking distance. Don't run, hurry and get back indoors as soon as possible.

Fifth, in food, we should

eat more new shoes and fruits. Foods with high fiber content will help to excrete PM2.5 inhaled.