Campo Largo Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Campo Largo, nestled in the state of Paraná, Brazil, occupies a unique geographic position within the rolling landscapes of the Southern Brazilian Highlands. Located at coordinates -25.4589, -49.5278, the city sits approximately 18km west of the state capital, Curitiba, forming part of the greater metropolitan area. The terrain is characterized by gently undulating hills, a legacy of ancient volcanic activity, with elevations ranging between 800 and 950 meters above sea level. This altitude influences temperature patterns and contributes to the potential for temperature inversions. Campo Largo’s surrounding landscape is a mosaic of agricultural lands – primarily soybean, corn, and wheat cultivation – interspersed with patches of Araucaria forest, a biome increasingly threatened by agricultural expansion. The Ribeira do Iguacu river system flows nearby, influencing local humidity. While not heavily industrialized itself, Campo Largo’s proximity to Curitiba’s industrial belt introduces a degree of regional pollution transport. The urban-rural gradient is relatively sharp, with agricultural activities dominating the periphery and a denser urban core concentrated around the city center. This proximity to both agricultural sources and a larger industrial hub significantly impacts local air quality, creating a complex pollution profile influenced by both local emissions and regional transport.

Campo Largo experiences a humid subtropical climate, characterized by well-defined wet and dry seasons rather than traditional four seasons. Air quality generally deteriorates during the dry winter months (June-August). Reduced rainfall leads to lower atmospheric dispersion, trapping pollutants emitted from vehicle traffic, residential wood burning for heating, and agricultural activities like crop residue burning. Temperature inversions, common during calm winter mornings, exacerbate this by preventing vertical mixing of air. Conversely, the wet season (October-March) typically brings improved air quality. Increased rainfall effectively washes pollutants from the atmosphere, and higher humidity promotes atmospheric cleansing. However, even during the wet season, agricultural practices can contribute to localized pollution spikes, particularly during harvest times. Spring (September-November) sees a transition period with fluctuating conditions. Summer (December-February) is generally the most favourable time for outdoor activity, though occasional heatwaves can contribute to ozone formation. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor exertion during dry winter mornings and periods of agricultural burning. Monitoring wind patterns is crucial, as winds from the east can carry pollutants from Curitiba.