Mabini Air Quality Index (AQI)

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Mabini, nestled on the southwestern coast of Bohol Island in the Philippines (9.8650°N, 124.5230°E), presents a unique geographic setting influencing its air quality. The municipality’s terrain is characterized by rolling hills descending towards a coastline famed for its diving spots, particularly around Balicasag Island. With a population of 28,701, Mabini is transitioning from a primarily rural, agricultural economy to one increasingly reliant on tourism. This shift introduces new pollution sources. The surrounding landscape is dominated by karst topography, limestone formations, and dense tropical vegetation. Elevation varies, but generally remains below 200 meters, minimizing significant temperature inversions. Proximity to the Bohol Sea dictates prevailing wind patterns, often bringing in maritime air, but also potentially transporting pollutants from nearby islands or shipping lanes. While Mabini itself lacks heavy industry, agricultural practices – including potential slash-and-burn farming in surrounding areas – contribute to particulate matter. The urban-rural gradient is relatively sharp; denser settlements are concentrated along the coastal road, while the interior remains largely agricultural. This localized concentration of activity impacts air quality, particularly during peak tourist seasons and harvest times. The coastal location means susceptibility to sea breezes and potential salt spray, influencing aerosol composition.

Mabini experiences a distinct wet and dry season, profoundly impacting air quality. The dry season, typically from February to May, sees a concentration of pollutants due to reduced rainfall for atmospheric cleansing and increased dust from agricultural activities and unpaved roads. March and April are often the months with the poorest air quality, exacerbated by higher temperatures and stable atmospheric conditions. Conversely, the wet season, spanning June to November, brings relief through frequent rainfall that washes away particulate matter. However, increased humidity can also promote the formation of mold and mildew, impacting indoor air quality. The southwest monsoon, dominant from June to October, brings prevailing winds that can transport pollutants from other regions. November to January represents a transitional period with generally improved air quality, though occasional localized burning for land preparation can cause temporary spikes. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during the peak of the dry season. During the wet season, while overall pollution is lower, caution is advised regarding mold exposure in damp environments. Monitoring wind direction during monsoon periods is crucial for understanding pollutant sources.