Nōgata Air Quality Index (AQI)

Loading live AQI data...

Loading weather snapshot...

Loading historical AQI trends...

Nōgata, nestled within Fukuoka Prefecture on the island of Kyushu, Japan, presents a unique geographic setting influencing its air quality. The city occupies a relatively flat coastal plain, situated at an elevation of approximately 20 meters above sea level, bordering Hakata Bay. This proximity to the sea introduces maritime influences, moderating temperatures but also potentially trapping pollutants during stable atmospheric conditions. Nōgata is part of the larger Fukuoka urban area, experiencing a gradient of urbanisation as one moves towards the central city of Fukuoka. To the east and south, the landscape transitions into rolling hills and agricultural lands, primarily rice paddies and smaller farms. While Nōgata itself isn’t heavily industrialised, its connection to the broader Fukuoka economic zone means it experiences some industrial fallout. The surrounding landscape provides limited natural ventilation, particularly during periods of stagnant air. The urban-rural gradient is relatively sharp, with pockets of dense residential areas interspersed with agricultural fields. This mix creates localised pollution hotspots, particularly during peak commuting hours and agricultural burning seasons. The city’s position within a valley-like formation further contributes to the potential for pollutant accumulation, impacting local air quality.

Nōgata’s air quality follows a distinct seasonal pattern. Spring (March-May) often sees increased pollen counts, exacerbating respiratory issues, alongside moderate pollution from residual winter heating. Summer (June-August) brings the humid Asian monsoon, which initially *improves* air quality through rainfall and wind dispersal, but can also trap pollutants under stable, humid air masses. August, particularly, can experience stagnant conditions. Autumn (September-November) is generally the clearest period, with cooler temperatures and prevailing winds flushing out accumulated pollutants. However, agricultural burning of rice straw after harvest in October and November introduces significant particulate matter, impacting visibility and respiratory health. Winter (December-February) presents the most challenging conditions. Temperature inversions are common, trapping cold air and pollutants near the ground. Reduced sunlight hours limit photochemical reactions that break down pollutants. Sensitive groups – children, the elderly, and those with pre-existing respiratory conditions – should limit strenuous outdoor activity during these months. Fog, prevalent in winter mornings, further concentrates pollutants. Avoiding outdoor exercise during peak traffic hours is advisable year-round, but especially during winter inversions and autumn burning seasons.