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Arsuz is a coastal gem situated on the Mediterranean shores of the Hatay province in southern Turkey. Its urban character is defined by a transition from a tranquil fishing village to a bustling tourism hub, characterized by low-rise developments and expansive beachfronts. Geographically, the town is nestled between the azure waters of the Mediterranean Sea to the west and the imposing heights of the Amanos Mountains to the east. This specific topography creates a unique atmospheric dynamic; the mountains act as a formidable barrier, often preventing inland air masses from dispersing, while the sea provides a constant source of refreshing maritime breezes. The terrain is primarily a coastal plain, characterized by fertile soils that support extensive citrus groves and olive orchards, creating a distinct urban–rural gradient where residential clusters blend into agricultural zones. From an air quality perspective, Arsuz benefits significantly from its coastal positioning, as the prevailing westerly winds typically sweep away pollutants, maintaining a relatively fresh atmosphere compared to the inland industrial centers of the Hatay region. However, the proximity to the Amanos range can occasionally lead to localized stagnation during specific meteorological conditions, where pollutants from domestic heating or agricultural activities become trapped in the lower atmosphere. The interaction between the moist maritime air and the rugged mountainous backdrop ensures that Arsuz remains a high-oxygen environment, though it remains susceptible to regional haze drifting from the broader Eastern Mediterranean basin during the peak summer months.

The air quality narrative in Arsuz is dictated by the rhythmic oscillation of the Mediterranean climate. During the winter months, the town experiences its wettest period, where frequent precipitation acts as a natural scrubbing mechanism, washing particulate matter from the sky and maintaining high visibility. However, cold snaps can trigger increased reliance on domestic heating, potentially causing localized spikes in emissions. Spring brings a transition where mild temperatures and shifting winds generally maintain excellent air quality, making it the ideal season for outdoor recreation. As summer arrives, the atmospheric profile shifts; the heat intensifies, and the region often experiences stagnant air masses. During these months, the risk of ozone formation increases due to high solar radiation and the influx of tourist traffic. While the sea breeze provides a cooling and cleansing effect during the day, temperature inversions can occasionally occur at night, trapping pollutants near the surface. Autumn marks a return to stability, though this period can be marred by agricultural burning in the surrounding citrus groves, which temporarily elevates particulate levels. Sensitive groups, including asthmatics and the elderly, should be particularly cautious during the late summer haze and the autumn burning window. To maximize health benefits, outdoor activities are best scheduled for the early morning during the summer or throughout the rainy winter. By monitoring the wind direction, residents can avoid periods when inland pollutants are pushed toward the coastal strip.