Zhezqazghan Air Quality Index (AQI)

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Zhezqazghan, nestled in the heart of Kazakhstan’s Ulytaū Region, occupies a unique geographic position within the Kazakh Uplands. Situated at coordinates 47.7833° N, 67.7000° E, the city’s elevation of approximately 600 meters (1969 feet) influences its climate and air quality. The surrounding terrain is characterised by gently rolling steppes and low hills, a landscape sculpted by millennia of wind and water erosion. Unlike cities bordering major rivers or lakes, Zhezqazghan is relatively distant from significant bodies of water, contributing to a more continental climate with greater temperature extremes. Historically, the region was a crucial centre for mining, particularly copper and zinc, and remnants of this industrial past continue to shape the local economy and, consequently, the air quality. The city’s urban–rural gradient is relatively sharp; transitioning quickly from densely populated residential areas to expansive steppe grasslands. This proximity to open land can offer some dispersion of pollutants, but also means the city is vulnerable to dust storms originating from the surrounding arid regions. The geological composition of the surrounding land, rich in mineral deposits, also contributes to particulate matter in the air, particularly during periods of wind erosion. The city’s location within a basin can also exacerbate pollution events by trapping air masses.

Zhezqazghan experiences a pronounced continental climate, resulting in significant seasonal variations in air quality. Spring (March-May) often sees a surge in particulate matter as snow melts and exposes accumulated dust and pollutants. Winds picking up across the steppe contribute to this, carrying dust into the city. Summers (June-August) are typically drier, with clearer skies, but can experience localised pollution from vehicle emissions and occasional wildfires in the surrounding grasslands. August can be particularly hazy. Autumn (September-November) brings a gradual decline in temperatures and an increase in stable atmospheric conditions, leading to temperature inversions that trap pollutants near the ground. This is often the period with the poorest air quality. Winter (December-February) is characterised by cold temperatures and frequent snow cover. While snow can initially cleanse the air, it also inhibits dispersion, and reliance on coal for heating contributes to elevated levels of sulfur dioxide and particulate matter. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during November-February. Months of June and July generally offer the most favourable conditions for outdoor activities. Fog, common in the colder months, can further exacerbate pollution by trapping pollutants.