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Kunp'o, situated in Gyeonggi Province, South Korea, occupies a strategic position within the broader Seoul Capital Area, approximately 20 kilometers southwest of Seoul's city center. This location places it firmly within the Han River basin, characterized by relatively flat terrain with gentle hills, typical of the Gyeonggi region, and an average elevation around 50 meters above sea level. The city's urban character is defined by its role as a residential and commercial satellite of Seoul, featuring dense apartment complexes, commercial districts, and green spaces like parks, creating a distinct urban-rural gradient as it transitions to agricultural zones in southern Gyeonggi. Proximity to the Yellow Sea, about 30 kilometers to the west, influences local climate through maritime effects, but this is moderated by its inland position. Kunp'o lies within the Seoul Industrial Belt, with nearby industrial complexes in Siheung and Ansan contributing to regional air pollution, while local sources include vehicular emissions from major highways like the Gyeongbu Expressway and urban heating. The surrounding landscape, including the low Gwangju Mountains to the east, can trap pollutants under certain meteorological conditions, exacerbating air quality issues. This geographic setting, combined with high population density and industrial activity, makes Kunp'o vulnerable to particulate matter and ozone, with pollution often transported from Seoul and China, affecting respiratory health in this densely populated corridor.

In Kunp'o, air quality follows a distinct seasonal pattern shaped by East Asian monsoons and local meteorology. During winter (December to February), pollution peaks due to temperature inversions that trap pollutants near the ground, compounded by increased emissions from heating systems and stagnant winds; sensitive groups like children and the elderly should limit outdoor activities, especially on cold, calm days. Spring (March to May) sees variable conditions, with occasional high pollution episodes from Asian dust storms (hwangsa) sweeping in from Mongolia and China, typically in March or April, requiring masks and indoor precautions during alerts. Summer (June to August) brings relief with the East Asian monsoon, as southerly winds and rainfall disperse pollutants, making it the best season for outdoor exercise, though ozone levels can rise on hot, sunny days, advising avoidance of midday exertion. Autumn (September to November) features generally good air quality early on, but pollution may increase later due to reduced wind and agricultural burning in surrounding regions, with November often seeing a gradual buildup; monitoring forecasts is key for planning activities. Year-round, fog can occasionally worsen visibility and particulate concentrations, particularly in low-lying areas. For health guidance, use air quality apps, stay indoors during peak pollution months like winter, and consider air purifiers in homes to mitigate risks from this cyclical pattern.