Joaquim Nabuco Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Joaquim Nabuco, nestled in the state of Pernambuco, Brazil, occupies a geographically significant position within the broader Zona da Mata region. Located at approximately -8.6239 latitude and -35.5328 longitude, the city is characterized by a gently undulating terrain transitioning from the coastal plains inland. This area is part of the Brazilian Northeast, historically dominated by sugarcane plantations, and still retains a strong agricultural character. The city’s elevation is relatively low, contributing to limited atmospheric dispersion of pollutants. Proximity to the Atlantic Ocean, roughly 60km east, introduces maritime influences, including humidity and occasional sea breezes, but also the potential for salt spray and associated aerosol formation. While Joaquim Nabuco itself isn’t heavily industrialized, its regional context includes larger industrial centers along the coast and in the state capital, Recife, which can contribute to long-range transport of pollutants. The urban-rural gradient is pronounced; the city core is relatively compact, surrounded by extensive agricultural lands – primarily sugarcane and fruit orchards – and patches of Atlantic Forest remnants. This mix creates a complex interplay of emission sources and dispersion patterns, impacting local air quality. The surrounding landscape, while visually appealing, limits natural ventilation, exacerbating pollutant concentrations during periods of calm weather.

Air quality in Joaquim Nabuco experiences distinct seasonal variations largely dictated by the region’s bimodal rainfall pattern. The wet season, typically from April to August, brings increased rainfall and higher humidity, effectively scavenging particulate matter from the atmosphere and improving air quality. This period generally sees the lowest levels of air pollution, making it the most favourable time for outdoor activities. Conversely, the dry season, spanning September to March, is characterized by reduced rainfall, lower humidity, and increased dust resuspension from agricultural activities. This leads to a noticeable deterioration in air quality, particularly concerning particulate matter (PM10 and PM2.5). Temperature inversions, common during the cooler, drier months of July and August, can trap pollutants near the ground, further worsening conditions. Strong easterly trade winds, prevalent during the dry season, can transport pollutants from coastal industrial areas inland. Sensitive groups – children, the elderly, and individuals with respiratory conditions – should exercise caution during the dry season, limiting strenuous outdoor activity and monitoring their health. The months of October and November, marking the transition from dry to wet, often experience fluctuating conditions, requiring increased vigilance.