When will the warning of heavy pollution weather in Chengdu be lifted?

The warning of heavy pollution weather in Chengdu was lifted at 0: 00 on June 25, 2023.

The warning signal of heavily polluted weather is a kind of meteorological disaster warning signal, which is divided into three levels, namely yellow III, orange II and red I (respectively indicated as IV, blue IV, yellow III, orange II and red I), corresponding to the moderately polluted weather, heavily polluted weather and extremely heavily polluted weather at the forecast level, respectively, and blue is slightly polluted weather.

Chengdu, referred to as Rongcheng and Jincheng for short, is a prefecture-level city, provincial capital, sub-provincial city, megacity, national central city and food capital under the jurisdiction of Sichuan Province. It is located in the southwest of China, the west of Sichuan Basin and the hinterland of Chengdu Plain, between east longitude 102 54' and north latitude 104 53'.

By the end of 2022, the whole city has jurisdiction over 12 municipal districts, 3 counties and 5 county-level cities. By the end of 2022, the resident population of Chengdu was 2 1.268 million.

geographical environment

Chengdu is located in the western edge of Sichuan Basin, and its terrain inclines from northwest to southeast. The western part belongs to the marginal area of Sichuan basin, mainly in deep mountains and hills, with an altitude of1000 ~ 3000m. The highest point is located in the University Hall (Miaojiling) in Xiling Town, Dayi County, with an altitude of 5364 meters. The eastern part belongs to the basin-bottom plain of Sichuan Basin, which is formed by alluvial rivers such as Minjiang River and Yujiang River. It is the center of Chengdu Plain, mainly composed of plains, terraces and some low hills, with an altitude of 750 meters.

The lowest is on the bank of Tuojiang River in jianyang city, with an altitude of 359 meters. Due to the huge vertical height difference, Chengdu has formed a unique landform type of one-third plain, one-third hill and one-third mountain. Due to the obvious climate differentiation, a vertical climate zone with obvious heat difference has been formed, so there are many kinds, complete categories and relatively concentrated distribution of biological resources in this area.

Reference to the above content: Baidu Encyclopedia-Chengdu