Ambalamanasy II Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Ambalamanasy II is situated in the far north of Madagascar, within the Antsiranana region, acting as a transitional zone between the urban core of Diego Suarez and the surrounding rural hinterlands. The terrain is characterized by a mix of coastal lowlands and undulating hills, typical of the Diana region's rugged topography. Its proximity to the expansive Bay of Diego Suarez is the defining geographic feature, as the maritime influence regulates local temperatures and drives atmospheric circulation. The urban character is semi-dense, featuring a gradient where residential clusters blend into agricultural zones dominated by subsistence farming and small-scale plantations. This positioning creates a unique air quality profile; while the open coastal landscape facilitates the rapid dispersal of pollutants, the presence of unpaved roads leads to significant particulate matter suspension during dry periods. The elevation is relatively low, but the surrounding highlands can occasionally trap air masses, though this is less common than in inland basins. Industrial activity is minimal, meaning the primary pollution sources are localized, stemming from domestic biomass combustion and vehicular emissions from the roads connecting the settlement to the regional capital. The interplay between the humid sea breezes and the dry inland air creates a dynamic environment where air quality fluctuates based on the strength of the wind. Consequently, the geographic openness of Ambalamanasy II generally prevents the formation of severe smog, though it remains susceptible to wind-borne dust and seasonal agricultural smoke, which drift across the plains toward the coast, impacting the respiratory health of the inhabitants.

In Ambalamanasy II, air quality is governed by the tropical cycle of wet and dry seasons, heavily influenced by the Varatraza, the powerful southeast trade wind. During the dry season, from May to October, the Varatraza reaches its peak intensity. While these strong winds generally sweep away stagnant pollutants, they simultaneously trigger a rise in airborne dust and mineral particulates from the arid soil. This period often sees a spike in coarse particulate matter, making outdoor activity challenging for those with respiratory sensitivities. Conversely, the wet season, spanning November to April, brings heavy rainfall that effectively scrubs the atmosphere of dust and particulates, leading to the cleanest air of the year. However, this period also sees an increase in domestic biomass burning for heating and cooking as humidity rises, which can lead to localized concentrations of smoke in sheltered residential areas. Temperature inversions are rare due to the constant maritime breeze, but during the calm transitions between seasons, pollutants may linger longer. Sensitive groups, including children and the elderly, should limit outdoor exertion during the peak dust months of August and September. Health guidance suggests staying hydrated and using masks during heavy wind events to avoid irritation. The most favorable months for outdoor activities are typically May and November, when the air is fresh but the extreme wind or rain is moderated, ensuring a balanced atmospheric condition for the local population, providing a respite from the dust and smoke that characterize the other more extreme phases of the tropical year.