Fierenana Air Quality Index (AQI)

Loading live AQI data...

Loading weather snapshot...

Loading historical AQI trends...

Fierenana, a small city within the Antananarivo region of Madagascar, is nestled amongst the central highlands, at an elevation of approximately 1,450 meters (4,757 feet). This altitude significantly influences its climate and, consequently, its air quality. The surrounding landscape is characterised by rolling hills and terraced rice paddies, indicative of the region’s strong agricultural base. The city itself is relatively compact, exhibiting a typical Malagasy urban form – a blend of traditional housing and more modern structures. Its position within the highlands means it’s shielded to some extent from direct coastal influences, but still experiences the effects of the island’s broader weather systems. The terrain contributes to localised air stagnation, particularly in valleys and lower-lying areas. While Fierenana isn’t a major industrial hub, the surrounding agricultural activities – including slash-and-burn practices during land preparation – contribute particulate matter to the atmosphere. The urban-rural gradient is relatively sharp, with agricultural land immediately bordering the city limits. The proximity to Antananarivo, the capital, also means Fierenana can experience some pollution transport from that larger urban centre, particularly during periods of prevailing winds. The city’s location within a valley can exacerbate the trapping of pollutants, leading to localised air quality concerns.

Fierenana experiences a distinct wet and dry season, heavily influencing its air quality. The wet season, roughly November to March, generally brings improved air quality due to rainfall scavenging particulate matter from the atmosphere. However, increased humidity can also foster mould growth, potentially impacting respiratory health. The dry season, from April to October, sees a marked deterioration in air quality. This is primarily due to increased dust from agricultural activities, particularly the burning of vegetation for land preparation before planting. The cooler temperatures during the dry season can also lead to temperature inversions, trapping pollutants near the ground. August and September are typically the months with the poorest air quality, coinciding with peak agricultural burning. Winds are generally light during these months, further exacerbating the problem. Sensitive groups – children, the elderly, and those with pre-existing respiratory conditions – should limit strenuous outdoor activity during the dry season, particularly in the late afternoon when pollutant concentrations are often highest. The transition periods between wet and dry seasons can be unpredictable, with fluctuating air quality. Monitoring local conditions is crucial.