Fushun Air Quality Index (AQI)

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Fushun is a prefecture-level city in Liaoning Province, northeastern China, situated approximately 45 kilometers east of Shenyang, the provincial capital. Nestled within the Hun River valley, Fushun's urban core lies at an elevation of around 80 meters above sea level, flanked by the rolling hills of the Changbai Mountain foothills to the east and the Liaohe Plain to the west. This topography creates a semi-enclosed basin that significantly influences air quality by trapping pollutants under stable atmospheric conditions. The city is bisected by the Hun River, a tributary of the Liao River, but this water body provides minimal dispersion effect due to the valley's constrained airflow. Fushun forms part of the Central Liaoning Metropolitan Region, a heavily industrialized belt that includes Shenyang and Anshan, contributing to regional pollution transport via prevailing westerly winds. Historically known as China's 'coal capital,' Fushun's economy remains anchored in mining, particularly open-pit coal extraction, and related industries like petrochemicals and metallurgy, which are concentrated in its urban periphery. The urban-rural gradient shows dense settlement in the central valley, with mining operations and industrial zones radiating outward, interspersed with agricultural land used mainly for corn and soybean cultivation. This geographic setting—a valley surrounded by industrial activity—makes Fushun particularly vulnerable to air quality degradation, as emissions from local sources and neighboring cities accumulate in the basin, exacerbated by temperature inversions common in colder months.

Fushun's air quality follows a distinct seasonal pattern shaped by its continental monsoon climate and industrial geography. In winter (December to February), pollution peaks due to coal combustion for heating, combined with frequent temperature inversions that trap pollutants in the valley. Cold, stagnant air and low wind speeds from the Siberian High prevent dispersion, making this the worst period for outdoor activity, especially for sensitive groups like children, the elderly, and those with respiratory conditions. Spring (March to May) sees gradual improvement as temperatures rise and winds increase, though dust storms from the Gobi Desert can occasionally elevate particulate levels. Summer (June to August) offers the cleanest air, with the East Asian monsoon bringing southeasterly winds that ventilate the basin, and higher temperatures reduce heating emissions. However, high humidity can sometimes lead to haze formation. Autumn (September to November) marks a transition, with cooling temperatures and reduced monsoon winds allowing pollution to build up again, particularly from industrial sources. Sensitive individuals should avoid prolonged outdoor exertion in winter and autumn, favor morning hours in summer when dispersion is better, and monitor air quality forecasts year-round. The best months for outdoor activities are typically June through August, while December to February should be approached with caution.