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Al Bayḑā' occupies a strategic position in northeastern Libya's Al Jabal al Akhḑar region, perched on the Green Mountain plateau at approximately 600 meters above sea level. This elevated urban center sits roughly 30 kilometers inland from the Mediterranean coast, creating a distinctive microclimate that influences its air quality patterns. The city's geography is characterized by rugged limestone terrain with deep valleys and steep slopes, surrounded by the Jebel Akhdar massif to the south and east. This mountainous backdrop creates natural barriers that can trap air pollutants, particularly during atmospheric inversions. Al Bayḑā' functions as both an administrative hub and agricultural center, with its urban core transitioning gradually to olive groves, fruit orchards, and cereal fields in the surrounding rural areas. The absence of major industrial zones means pollution primarily stems from urban sources like vehicle emissions, residential heating, and occasional dust from unpaved roads. Proximity to the Mediterranean moderates temperatures but doesn't provide consistent sea breezes strong enough to regularly disperse pollutants. The city's position on the plateau creates a unique airshed where pollutants can accumulate in the bowl-like valleys, especially during periods of atmospheric stability. This geographic setting, combined with Libya's generally arid climate, makes dust transport from the Sahara a periodic concern, though the Green Mountain's elevation provides some protection compared to coastal cities.

Al Bayḑā' experiences distinct seasonal air quality variations shaped by its Mediterranean climate and elevated plateau location. During winter (December-February), cooler temperatures increase residential heating emissions while temperature inversions become more frequent, trapping pollutants in the city's valleys. This creates the year's poorest air quality conditions, particularly in January when calm winds and foggy mornings combine with increased wood and fuel burning. Sensitive groups should limit outdoor exertion during morning hours in winter. Spring (March-May) brings improving conditions as rising temperatures reduce heating needs and increased wind activity helps disperse pollutants, though occasional Saharan dust events can temporarily degrade air quality. Summer (June-August) offers the cleanest air despite higher temperatures, as strong daytime thermal currents create vertical mixing that prevents pollutant accumulation, though ozone formation can become a concern during heatwaves. Autumn (September-November) sees a gradual deterioration as temperatures drop and atmospheric stability increases, with October often marking the transition to winter pollution patterns. The city's elevation provides some protection from coastal humidity-related pollution but creates its own microclimate challenges. For optimal outdoor activity timing, late spring through early autumn offers the most favorable conditions, while winter mornings present the greatest respiratory risks, especially for children, elderly residents, and those with pre-existing conditions who should consider indoor air filtration during peak pollution periods.