Buxin Air Quality Index (AQI)

Loading live AQI data...

Loading weather snapshot...

Loading historical AQI trends...

Buxin, nestled within Changhua County in western Taiwan, occupies a relatively flat coastal plain, a characteristic feature of this region. Its coordinates (23.9523, 120.5349) place it strategically near the Dadu Plateau and the western slopes of the Bagua Plateau, though the immediate terrain is predominantly alluvial. The population of approximately 33,816 reflects a moderately sized urban centre within a largely agricultural landscape. Buxin’s proximity to the Taiwan Strait, roughly 8-10 kilometers west, introduces maritime influences on local weather patterns, but also potential for salt spray and humidity. Changhua County itself is a significant agricultural producer, particularly of rice and fruits, and this contributes to seasonal biomass burning which can impact air quality. The surrounding area features a gradient from densely populated urban centres like Changhua City to the south, and more rural, agricultural lands to the north and east. Industrial activity is concentrated further north towards Taichung, but regional transport corridors mean Buxin experiences some spillover effects. The flat topography limits natural dispersion of pollutants, exacerbating air quality issues during periods of stagnant air. This geographical setting, a blend of coastal influence, agricultural activity, and limited topographical relief, fundamentally shapes Buxin’s air quality profile.

Buxin’s air quality follows a distinct seasonal pattern heavily influenced by Taiwan’s subtropical monsoon climate. Spring (March-May) often sees increased particulate matter from agricultural burning as farmers prepare fields, coupled with dust storms originating from mainland China, carried by prevailing winds. Summer (June-August) brings the southwest monsoon, offering periods of cleaner air due to increased rainfall and wind speeds, though high humidity can trap pollutants near the ground. Typhoons, common during this season, can temporarily improve air quality through heavy precipitation but also disrupt infrastructure and potentially release pollutants from damaged facilities. Autumn (September-November) is typically the most favourable period, with clearer skies and stable weather patterns. However, temperature inversions become more frequent, trapping pollutants at ground level. Winter (December-February) presents the most challenging conditions. The northeast monsoon brings cold, dry air and stagnant conditions, leading to a build-up of pollutants from local sources and regional transport. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during winter months and periods of high humidity. Monitoring wind direction and avoiding peak traffic hours are also advisable throughout the year.