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Fuqing occupies a distinctive coastal position in eastern Fujian Province, situated on the northern shores of Xinghua Bay where the Long River meets the Taiwan Strait. This strategic location places the city within China's economically vibrant coastal corridor, approximately 50 kilometers southwest of Fuzhou, the provincial capital. The urban landscape transitions from densely populated coastal plains to rolling hills and low mountains in the western districts, with elevations ranging from sea level to around 600 meters in the interior. This terrain creates a natural amphitheater effect that can trap pollutants, particularly when combined with the region's frequent temperature inversions. Fuqing's extensive coastline and proximity to major shipping lanes contribute to both maritime influences on air quality and industrial emissions from port activities. The city lies within the Minnan Golden Triangle economic zone, characterized by mixed industrial development including electronics manufacturing, food processing, and textile production, interspersed with agricultural areas specializing in lychee and longan orchards. The urban-rural gradient shows concentrated pollution sources in the coastal industrial districts, gradually diminishing toward the more mountainous western regions. This geographic configuration means air quality in Fuqing is significantly influenced by both local emissions and regional transport patterns, with sea breezes occasionally providing ventilation but also potentially carrying industrial emissions from neighboring areas along the coast.

Fuqing's air quality follows a distinct seasonal rhythm shaped by the East Asian monsoon system and local meteorological conditions. During winter (December-February), cooler temperatures and frequent temperature inversions trap pollutants near the surface, creating the year's most challenging air quality conditions. The northeast monsoon brings drier air but limited dispersion, making January typically the worst month for pollution accumulation. Spring (March-May) sees gradual improvement as increasing temperatures and more variable winds begin to disperse pollutants, though occasional fog and haze episodes can still occur during transitional weather patterns. Summer (June-August) offers the cleanest air as the southwest monsoon brings consistent sea breezes, higher humidity, and frequent rainfall that effectively scavenge particulate matter from the atmosphere. This season provides optimal conditions for outdoor activities, particularly along the coastal areas where marine influences are strongest. Autumn (September-November) marks a transition period where decreasing temperatures and shifting wind patterns gradually reduce ventilation efficiency, leading to a slow deterioration in air quality as winter approaches. Sensitive groups including children, elderly residents, and those with respiratory conditions should limit prolonged outdoor exposure during winter months and on days with noticeable haze. Monitoring local air quality forecasts is particularly important during seasonal transitions when conditions can change rapidly.