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El Bâzoûrîyé, nestled within the Liban-Sud governorate of Lebanon, occupies a strategically significant position within the Beqaa Valley. Its coordinates (33.2539, 35.2717) place it at an elevation of approximately 850 meters above sea level, contributing to a cooler, drier climate compared to the coastal regions. The city’s geography is characterized by gently sloping terrain, transitioning from the valley floor towards the foothills of the Anti-Lebanon Mountains to the east. This orographic influence plays a crucial role in local weather patterns and, consequently, air quality. The surrounding landscape is predominantly agricultural, with extensive orchards and vineyards defining the rural character of the region. This agricultural activity, while vital to the local economy, can contribute to seasonal particulate matter from agricultural burning practices, particularly during harvest periods. El Bâzoûrîyé’s proximity to the Orontes River, though not directly adjacent, influences humidity levels and can impact the dispersion of pollutants. The urban–rural gradient is relatively sharp; the city itself is compact, with a clear delineation between built-up areas and the surrounding agricultural fields. Further east, the Anti-Lebanon Mountains act as a barrier, potentially trapping pollutants under certain meteorological conditions. While not directly bordering major industrial zones, the Beqaa Valley experiences transboundary pollution from Syria, impacting air quality, and the valley's topography can funnel pollutants towards El Bâzoûrîyé. The valley's relatively flat expanse allows for the accumulation of pollutants, especially when wind speeds are low.

El Bâzoûrîyé’s air quality experiences a distinct seasonal cycle heavily influenced by regional weather patterns. Spring (March-May) generally sees improved air quality as temperatures rise and winds increase, aiding in pollutant dispersion. However, agricultural burning associated with the spring planting season can temporarily elevate particulate matter levels. Summer (June-August) is typically the driest period, often characterized by stable atmospheric conditions and temperature inversions, particularly during the early morning hours. These inversions trap pollutants near the ground, potentially leading to localized air quality concerns. The intense summer heat also contributes to the formation of ground-level ozone, though its impact is likely moderated by the valley’s elevation. Autumn (September-November) brings a return to more dynamic weather, with increased wind speeds and rainfall, which helps to cleanse the atmosphere. However, the harvest season intensifies agricultural burning, posing a significant challenge. Winter (December-February) is often the most challenging period. Cold, stable air masses frequently settle over the Beqaa Valley, creating persistent temperature inversions and trapping pollutants. Fog, common during winter mornings, further exacerbates this issue. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor exertion during these periods, particularly during early morning hours. It is advisable to monitor local air quality reports and avoid strenuous activities when conditions are unfavorable. The combination of valley topography and seasonal weather patterns makes proactive air quality management crucial for protecting public health.