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Ereymentaū, nestled within the Aqmola Region of Kazakhstan, occupies a unique geographic position on the vast Kazakh Steppe. Located at coordinates 51.6167° N, 73.1000° E, the city’s terrain is predominantly flat to gently rolling, characteristic of the steppe landscape. With an elevation of approximately 340 meters (1115 feet), Ereymentaū isn’t significantly influenced by mountainous barriers, leaving it exposed to prevailing westerly winds. The city’s relatively small population of 12,518 suggests a primarily rural character, though it functions as a regional administrative centre. The surrounding landscape is dominated by agricultural lands, primarily wheat and barley fields, interspersed with patches of semi-desert vegetation. There are no major bodies of water immediately adjacent to Ereymentaū, though the Ishim River flows some distance to the west. The absence of substantial industrial belts within the immediate vicinity is notable, however, regional agricultural practices – including fertilizer use and seasonal burning of crop residue – contribute to particulate matter. The urban-rural gradient is sharp, transitioning quickly from the limited built environment of Ereymentaū to open steppe. This open landscape facilitates the dispersion of pollutants, but also means the city is vulnerable to dust storms originating from surrounding areas, impacting local air quality.

Ereymentaū experiences a continental climate with significant seasonal variations impacting air quality. Winters (November to March) are long, cold, and dry, often characterized by temperature inversions trapping pollutants near the ground, particularly from residential heating using coal and wood. January and February typically see the poorest air quality. Spring (April-May) brings a temporary improvement as temperatures rise and precipitation increases, washing away accumulated pollutants. However, agricultural activities begin, introducing dust and potential emissions from fertilizer application. Summers (June-August) are warm and relatively dry, with prevailing winds aiding dispersion, generally resulting in better air quality. However, prolonged drought conditions can exacerbate dust storms. Autumn (September-October) sees a return to increased particulate matter as agricultural burning occurs after harvest. October is often a period of declining air quality. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during winter months and periods of agricultural burning. Monitoring wind direction is crucial; winds from agricultural areas will likely carry higher pollutant loads. Fog, common in the colder months, can also trap pollutants, worsening conditions.