On October 26, the Qingdao Municipal Bureau of Ecology and Environment released the "Qingdao Ambient Air Quality Review in September 2023". In September, the statistical results of Qingdao's ambient air state control points were: PM2.5The concentration is 18 μg/m3, PM10The concentration was 36 μg/m3, sulfur dioxide was 7 μg/m3, nitrogen dioxide was 25 μg/m3, carbon monoxide was 0.8 mg/m3, ozone was 166 μg/m3, PM10, sulfur dioxide, nitrogen dioxide, carbon monoxide concentrations have reached the