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Zugdidi, the administrative center of the Samegrelo-Zemo Svaneti region in Georgia, occupies a geographically significant position within the western part of the country. Situated at coordinates 42.5081° N, 41.8725° E and an elevation of approximately 180 meters (590 feet) above sea level, the city lies within a relatively flat alluvial plain formed by the Inguri River and its tributaries. This plain is part of the larger Colchis lowland, a historically fertile region known for its agricultural productivity. The surrounding landscape is characterized by a gradual transition from the plain to the foothills of the Lesser Caucasus Mountains to the north and east, and the Black Sea coast lies approximately 20 kilometers (12 miles) to the west. This proximity to the sea introduces a maritime influence, moderating temperatures but also potentially impacting air quality through salt spray and occasional coastal breezes carrying pollutants. Zugdidi’s urban fabric reflects its agricultural hinterland; while the city itself is compact, it serves as a vital hub for the surrounding rural communities. Agricultural zones, particularly focused on tobacco, citrus fruits, and tea cultivation, extend outwards, contributing to localized emissions from farming practices and processing. There are limited heavy industrial zones directly within Zugdidi, but transport corridors connecting it to larger urban centers like Kutaisi and Batumi funnel vehicular traffic, a significant factor in local air pollution. The urban-rural gradient is relatively smooth, with smaller villages and agricultural fields blending seamlessly into the city's periphery, influencing the dispersion of pollutants.

Zugdidi’s air quality experiences a distinct seasonal pattern dictated by its subtropical climate and prevailing meteorological conditions. The wet season, spanning roughly October to April, brings frequent rainfall and increased humidity, generally leading to improved air quality as precipitation washes away particulate matter. However, periods of prolonged fog, common during the colder months, can trap pollutants near the ground, creating localized episodes of reduced visibility and potentially elevated concentrations of fine particles. The summer months (June-August) are typically drier and hotter, with stagnant air conditions often developing due to a lack of consistent wind. Temperature inversions, where a layer of warm air sits above cooler air near the surface, are more frequent during this period, preventing vertical mixing and trapping pollutants emitted from agricultural activities, vehicle exhaust, and residential heating (though heating is less prevalent in summer). September and May represent transitional periods, with variable weather patterns. The agricultural burning season, often occurring in late summer and early autumn to clear fields for planting, can significantly impact air quality during these months. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during periods of stagnant air and agricultural burning. While the wet season generally offers respite, prolonged fog can still pose a risk. Outdoor activities are generally more favorable during the wetter months and the spring, avoiding the potentially more challenging conditions of the hot, dry summer and the agricultural burning season.