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Bāniyās, nestled along the Mediterranean coast of Syria in the Ţarţūs Governorate, occupies a geographically significant position within a complex landscape. Situated at coordinates 35.1819° N, 35.9487° E, the city’s elevation averages around 40 meters above sea level, gently rising towards the foothills of the Anti-Lebanon Mountains to the east. This proximity to the mountains creates a localized rain shadow effect, influencing precipitation patterns and contributing to periods of drier air. The Mediterranean Sea exerts a strong moderating influence on the local climate, providing maritime breezes that can, at times, disperse pollutants, but also introduce sea salt aerosols. The surrounding terrain is characterized by a mix of coastal plains, terraced hillsides used for olive groves and vineyards, and rugged mountainous areas. Agriculture, particularly olive cultivation, is a dominant land use in the immediate vicinity, potentially contributing to localized particulate matter from agricultural practices. Further inland, towards Ţarţūs, lies a broader agricultural belt. The urban–rural gradient transitions relatively quickly, with small villages and agricultural lands bordering the city. Bāniyās’s coastal location means it is susceptible to influences from regional weather systems, including those originating from the Arabian Peninsula. While industrial activity is not extensive within Bāniyās itself, the broader Ţarţūs region has some cement production and port-related operations, which could contribute to transboundary air pollution events. The city’s layout, a blend of older, densely populated areas and newer developments, also influences local air circulation patterns.

Bāniyās experiences a Mediterranean climate, resulting in distinct seasonal variations that significantly impact air quality. Summers (June-August) are characterized by intense heat, prolonged sunshine, and relatively calm winds. This often leads to temperature inversions, where a layer of warm air traps cooler air near the ground, preventing the vertical dispersion of pollutants. Agricultural burning, though regulated, can also contribute to particulate matter during this period. Autumn (September-November) brings a gradual cooling and increased wind speeds, generally improving air quality as pollutants are flushed out. However, the harvest season can still introduce localized smoke from agricultural activities. Winters (December-February) are mild and wet, with occasional periods of fog, particularly in the mornings. Fog can trap pollutants close to the ground, leading to temporary reductions in visibility and elevated concentrations of certain pollutants. Spring (March-May) sees a return to warmer temperatures and increasing sunshine, but wind patterns remain variable. Dust storms originating from the deserts to the east can occasionally impact air quality, introducing larger particulate matter. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the summer months, particularly during periods of stagnant air. Limiting outdoor exertion during peak heat and avoiding areas with visible smoke are advisable. During winter fog events, minimizing exposure to outdoor air is recommended. The transition seasons of spring and autumn generally offer the most favorable conditions for outdoor activities.