Maragogi Air Quality Index (AQI)

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Maragogi, a coastal municipality in the state of Alagoas, Brazil, is geographically defined by its stunning coastline and the presence of extensive coral reefs, known as the Maragogi Reefs. Situated at -9.0122 latitude and -35.2225 longitude, the city occupies a relatively flat, low-lying terrain, typical of the coastal plains of northeastern Brazil. The surrounding landscape is a mosaic of coconut groves, sandy beaches, and mangrove forests, transitioning inland to agricultural lands primarily dedicated to sugarcane and fruit cultivation. The urban area of Maragogi is concentrated along the coast, exhibiting a typical Brazilian coastal town character – a blend of fishing villages and burgeoning tourism infrastructure. Its proximity to the Atlantic Ocean exerts a significant influence on local weather patterns and, consequently, air quality. While Maragogi lacks heavy industry, the seasonal burning of agricultural residues and dust from unpaved roads contribute to particulate matter. The urban-rural gradient is relatively sharp, with denser development concentrated near the beaches and a more dispersed rural population further inland. The prevailing winds, generally easterly, carry marine aerosols inland, while land breezes can transport pollutants offshore. This coastal location means air quality is heavily influenced by oceanic conditions and long-range transport of pollutants from other regions.

Maragogi experiences a tropical climate, characterized by a distinct wet and dry season rather than traditional four seasons. Air quality generally improves during the wet season (April to August) due to increased rainfall which effectively washes away particulate matter and suppresses dust. The heavier rainfall also reduces the likelihood of agricultural burning, a significant contributor to localised pollution. However, high humidity during this period can foster mold growth, potentially impacting respiratory health. The dry season (September to March) presents a different scenario. Reduced rainfall leads to increased dust levels, particularly from unpaved roads and construction activities. Agricultural burning, used to prepare fields for planting, becomes more frequent, releasing significant amounts of smoke and particulate matter. Temperature inversions, common during calmer dry season nights, can trap pollutants near the ground, exacerbating air quality issues. February and March are typically the months with the poorest air quality. Sensitive groups – children, the elderly, and individuals with respiratory conditions – should limit strenuous outdoor activity during these months. Monitoring wind patterns is crucial; easterly winds can bring in pollutants from more industrialised areas further north, while land breezes can concentrate local emissions.