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Golo-Djigbé, a rapidly growing city in the Atlantique Department of Benin, is situated at approximately 6.5403°N latitude and 2.3253°E longitude. Its location is characterised by a relatively flat coastal plain, typical of southern Benin, with an elevation generally below 50 meters. The city’s proximity to the Atlantic Ocean, roughly 15 kilometers to the south, exerts a significant influence on its climate and, consequently, its air quality. The surrounding landscape is a mix of coastal lagoons, mangrove swamps, and increasingly, urban and agricultural land. Golo-Djigbé is experiencing a pronounced urban-rural gradient as it expands, absorbing surrounding villages and farmland. This expansion is accompanied by increased construction, vehicular traffic, and waste generation – all contributing factors to localised air pollution. The region’s dominant winds are from the southwest during the wet season and the northeast during the dry season, influencing the dispersion of pollutants. While not heavily industrialised *within* Golo-Djigbé itself, the broader economic activity in the Atlantique Department, including small-scale manufacturing and processing of agricultural products, contributes to regional background pollution levels. The sandy, porous soils common in the area can also contribute to dust resuspension, particularly during the dry season. Understanding these geographical factors is crucial for assessing and mitigating air quality challenges in Golo-Djigbé.

Golo-Djigbé experiences a tropical climate defined by distinct wet and dry seasons, heavily influencing air quality. The wet season, typically from April to October, brings relief from some pollutants due to rainfall scavenging particles from the air. However, increased humidity can also foster mold growth, impacting respiratory health. November to March constitutes the dry season, marked by the Harmattan wind blowing from the Sahara. This wind carries significant amounts of dust, dramatically increasing particulate matter concentrations and reducing visibility. January and February are often the months with the poorest air quality due to this influx of Saharan dust. Temperature inversions, common during the cooler, drier nights, can trap pollutants near the ground, exacerbating conditions. The transition periods – April and October – can be unpredictable, with fluctuating rainfall and wind patterns. For sensitive groups like children, the elderly, and those with respiratory conditions, avoiding strenuous outdoor activity during peak Harmattan periods is advisable. Monitoring local weather patterns and being aware of dust storm warnings is crucial. The increased burning of agricultural waste after the harvest in November can also lead to temporary spikes in pollution. Overall, the wet season offers comparatively better air quality, but vigilance regarding humidity-related issues is still necessary.