Air quality in Chengdu Xindu

There are three main reasons for the poor air quality in Chengdu: topographic and climatic factors, industrial emissions and traffic pollution, as well as dust and waste gas brought by urban construction and development.

First of all, Chengdu is located in Sichuan Basin, surrounded by high mountains, with poor air circulation and difficult diffusion of pollutants. At the same time, the climate in Chengdu is humid and foggy, and this meteorological condition is also easy to form haze weather, which leads to the decline of air quality.

Secondly, as an industrial city in southwest China, Chengdu has a large amount of industrial emissions, which has a serious impact on air quality. In addition, traffic pollution in Chengdu is becoming more and more serious, and a large number of automobile exhaust and traffic dust have also become important factors affecting air quality.

Finally, urban construction and development have also brought air quality problems. The emission of building dust, road dust and building waste gas all have adverse effects on air quality.

To sum up, there are many reasons for the poor air quality in Chengdu, which require the joint efforts of the government and all sectors of society to take effective measures to improve it. For example, strengthen the supervision and management of industrial emissions, promote public transportation and green travel, and strengthen the management of urban planning and construction. Only in this way can the air in Chengdu become fresher and more pleasant, and people's lives become healthier and better.

Chengdu climate

Chengdu has a subtropical monsoon climate, characterized by early spring, hot summer, cool autumn and warm winter. The annual average temperature is 16℃, and the annual rainfall is about 1000 mm. A remarkable feature of Chengdu's climate is cloudy and short sunshine time. The folk proverb "Shu dog barks at the sun" is an image description of this climate feature. Another notable feature of Chengdu's climate is humid air. So although the temperature is not high in summer, it looks sultry. The average temperature in winter is above 5℃, but it looks very cold because of cloudy days and humid air.

The annual average temperature in Chengdu in 2020 is15.5 ~18.2℃; The annual extreme maximum temperature is 36.6 ~ 39.5℃, and the annual extreme minimum temperature is -3.5 ~ 0.3℃. The hottest month appears in June-August, and the most Leng Yue appears in 65438+1October. Chengdu belongs to the subtropical humid monsoon climate zone, and the most frequent wind direction in Chengdu all year round is the south wind.

Reference to the above content: Baidu Encyclopedia-Chengdu