Matalom Air Quality Index (AQI)

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Matalom, nestled on the southwest coast of Leyte Island in the Philippines (10.2800°N, 124.8000°E), presents a unique geographic setting influencing its air quality. The municipality occupies a relatively narrow coastal plain, rising quickly into the rugged, forested interior hills. This terrain creates a complex interplay between coastal breezes and inland air circulation. Matalom’s proximity to the Camotes Sea directly impacts humidity and salt spray, potentially affecting particulate matter composition. The surrounding landscape is predominantly agricultural, with rice paddies and coconut plantations dominating the lowlands, while the higher elevations support diverse rainforest ecosystems. While not heavily industrialized, the region experiences localized activity related to agricultural processing and small-scale manufacturing. The urban-rural gradient is quite sharp; Matalom’s poblacion is a concentrated area, quickly transitioning to rural farming communities. This proximity to agricultural land means potential exposure to seasonal burning for land preparation, and pesticide/fertilizer drift. The coastal location also means susceptibility to long-range transport of pollutants from other islands and potentially even mainland Asia, carried by prevailing winds. The relatively low elevation makes the area vulnerable to marine influences and localized temperature inversions, trapping pollutants near the ground.

Matalom experiences a distinct wet and dry season, heavily influencing air quality. The dry season, typically from February to May, sees a peak in particulate matter due to increased dust from unpaved roads and agricultural activities like land clearing through burning. Lower humidity during these months also means pollutants are less likely to be washed out by rain. March and April are generally the least favourable months for outdoor activity for those with respiratory sensitivities. The onset of the wet season, around June, brings a significant improvement in air quality as rainfall effectively scrubs the atmosphere. However, increased humidity can also promote mold growth, impacting indoor air quality. The peak of the rainy season, July to November, often coincides with the strongest winds, dispersing pollutants effectively. December and January represent a transitional period, with decreasing rainfall and a gradual build-up of pollutants. During the wet season, localized flooding can stir up sediment and contribute to increased particulate matter. Sensitive groups – children, the elderly, and those with pre-existing respiratory conditions – should limit strenuous outdoor activity during the dry season and monitor conditions closely. Avoiding peak hours near agricultural areas during burning season is also advisable.