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Jilikŭl, nestled within the Khatlon Province of Tajikistan, occupies a geographically significant position in the Pamir-Alay mountain range foothills. Located at approximately 37.49°N, 68.52°E and an elevation of roughly 830 meters (2723 feet) above sea level, the city’s terrain is characterized by gently sloping plains transitioning into steeper, rugged landscapes. The surrounding area is predominantly agricultural, with extensive fields dedicated to cotton, wheat, and fruit orchards, forming a clear urban–rural gradient. The Kafirnihon River flows nearby, providing a vital water source and influencing local microclimates. While not directly adjacent to a major lake, the river’s presence contributes to localized humidity and potential fog formation, particularly during cooler months. Jilikŭl’s regional position places it within a zone experiencing continental climate patterns, with hot summers and cold winters. The city’s air quality is intrinsically linked to these climatic conditions and the surrounding land use. Agricultural practices, including fertilizer application and pesticide use, can contribute to localized emissions. Furthermore, the proximity to the Pamirs means that Jilikŭl can be susceptible to pollutants transported from industrial areas further north, although the mountainous terrain often acts as a barrier, dispersing some contaminants. The relatively small urban footprint, combined with the dominant agricultural landscape, suggests a pollution profile influenced more by diffuse sources than concentrated industrial emissions, though seasonal agricultural burning can be a factor.

Jilikŭl’s air quality follows a distinct seasonal pattern dictated by its continental climate. Summers (June-August) are typically hot and dry, with minimal precipitation. This often leads to stagnant air conditions, particularly during periods of high pressure, which can trap pollutants near the ground. Agricultural burning, a common practice for clearing fields after harvest, significantly contributes to particulate matter during this time, creating hazy conditions and impacting visibility. Autumn (September-November) brings cooler temperatures and increased wind speeds, which generally improve air quality by dispersing pollutants. However, the transition period can see episodes of fog, especially in the mornings, which can temporarily worsen air quality by concentrating pollutants. Winters (December-February) are characterized by cold temperatures and frequent temperature inversions, where a layer of warm air sits above cooler air near the ground. This inversion traps pollutants, leading to periods of poor air quality, especially in the valleys. The lack of wind during these inversions exacerbates the problem. Spring (March-May) sees a gradual warming and increased precipitation, which helps to flush out pollutants and improve air quality. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during summer agricultural burning and winter temperature inversions. Outdoor activities are generally best enjoyed during the spring and autumn months when wind patterns are more favourable and precipitation is higher. Avoiding strenuous activity during periods of visible haze or fog is also advisable.