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Befeta, nestled within the Fianarantsoa Province of Madagascar, occupies a geographically significant position in the island’s central highlands. Located at approximately -21.2304° latitude and 47.0495° longitude, the town sits at an elevation of roughly 1200 meters above sea level, contributing to a generally cooler climate compared to coastal regions. The surrounding landscape is dominated by rolling hills and terraced rice paddies, characteristic of the Betsileo region’s agricultural heartland. Befeta’s urban character is distinctly rural, exhibiting a low-density settlement pattern with traditional Malagasy architecture prevalent throughout. The town’s proximity to the Onilahy River, though not directly adjacent, influences local microclimates and provides a vital water source for agriculture. The urban–rural gradient is exceptionally sharp; beyond the immediate town limits, the landscape rapidly transitions to intensive agricultural fields and forested slopes. There are no major industrial belts directly impacting Befeta; the regional economy is primarily agrarian, with rice cultivation, maize farming, and livestock rearing being the dominant activities. This limits large-scale industrial pollution sources. However, traditional cooking methods utilizing wood and charcoal, common across the region, contribute to localized particulate matter. The terrain, with its sloping hills, can also influence air circulation patterns, potentially trapping pollutants under certain meteorological conditions. The surrounding highlands act as a barrier, moderating wind flow and occasionally leading to stagnant air pockets, particularly during periods of low wind speed.

Befeta’s air quality is intrinsically linked to its tropical highland climate, exhibiting a distinct wet and dry season pattern rather than the four seasons experienced in temperate zones. The dry season, typically spanning from May to October, often sees a slight improvement in air quality due to increased wind speeds and reduced humidity. These winds help disperse any particulate matter generated from agricultural burning, a common practice during land preparation. However, this period also sees increased reliance on wood and charcoal for cooking and heating, which can lead to localized spikes in smoke pollution, especially during cooler evenings. The wet season, from November to April, brings frequent rainfall and high humidity. While the rain helps to cleanse the atmosphere, the increased humidity can trap pollutants closer to the ground, particularly during periods of fog or low cloud cover. Temperature inversions, though less frequent than in colder climates, can occasionally occur during the cooler months, further exacerbating this effect. Agricultural burning is less prevalent during the wet season due to the increased risk of uncontrolled fires. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during periods of prolonged fog or smoke, particularly in the evenings. Outdoor activities are generally more favourable during the drier months, but vigilance regarding localized smoke from cooking fires remains essential. The interplay of rainfall, humidity, and wind patterns dictates the overall air quality profile, creating a dynamic environment that requires ongoing monitoring and awareness.