Recently, the reporter learned from relevant departments that according to the Gansu Provincial Department of Ecology and Environment in March and January-March 2024, the province's ambient air quality status circular, January-March, Jiayuguan City's comprehensive air quality index 3.21, an improvement of 9.8% year-on-year, in the province's 14 prefecture-level cities ranked first in air quality.
        In March, the average concentration of PM2.5 in Jiayuguan City was 18 micrograms/m3, an improvement of 18.2% year-on-year, ranking first in the province. The average concentration of PM10 decreased year-on-year, and the ratio of good days increased year-on-year. From January to March, the average concentration of PM2.5 in Jiayuguan City was 23 micrograms/m3, an improvement of 8.0% year-on-year, ranking first in the province. The average concentration of PM10 decreased year-on-year, and the ratio of good days increased year-on-year.