Sultānābād, nestled in the undulating landscape of Andhra Pradesh, India, occupies a geographically significant position within the broader Telangana Plateau region. Located at approximately 18.5247° N, 79.2722° E, the city’s terrain is characterized by gently sloping hills and fertile plains, a legacy of the Deccan Plateau’s geological history. Its elevation, around 330 meters above sea level, contributes to a relatively stable climate, though it can also influence atmospheric conditions impacting air quality. The surrounding landscape is predominantly agricultural, with extensive rice paddies and cotton fields dominating the rural areas, creating a distinct urban–rural gradient. While Sultānābād itself is a relatively small urban center with a population of just over 16,000, it sits within a region experiencing increasing urbanization and industrial development. The proximity to larger industrial belts in Hyderabad, roughly 100 kilometers to the north, introduces a potential source of pollutants transported by prevailing winds. The city’s drainage patterns are influenced by smaller tributaries flowing towards the Krishna River basin, though direct proximity to major water bodies is limited. The local topography, with its gentle slopes, can sometimes trap pollutants, particularly during periods of low wind speed, exacerbating localized air quality issues. Agricultural practices, including the burning of crop residue after harvest, represent a seasonal contributor to particulate matter pollution, especially during the transition months between seasons. The overall geographic setting presents a complex interplay of factors influencing Sultānābād’s air quality profile.

Sultānābād’s air quality experiences a distinct seasonal cycle dictated by the region’s tropical climate and monsoon patterns. The dry season, typically spanning from March to May, often witnesses a noticeable increase in particulate matter pollution. This is largely attributable to high temperatures, low relative humidity, and frequent temperature inversions, which trap pollutants near the ground. Agricultural burning, a common practice following the harvest of rabi crops, significantly contributes to this period’s elevated pollution levels. The monsoon season, from June to September, brings relief as strong winds and frequent rainfall effectively flush out pollutants, leading to a marked improvement in air quality. October and November represent a transitional period, with decreasing rainfall and gradually increasing temperatures, potentially leading to a resurgence of pollution. The winter months (December to February) are generally characterized by cooler temperatures and calmer winds, which, while pleasant, can also promote the formation of fog, particularly in the early mornings. This fog traps pollutants, leading to temporary reductions in visibility and localized air quality degradation. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season and periods of fog, limiting outdoor exertion and wearing appropriate masks. Maintaining awareness of local weather patterns and agricultural practices is crucial for anticipating and mitigating potential air quality impacts. The interplay of monsoon winds, temperature fluctuations, and agricultural activities shapes the annual air quality narrative in Sultānābād.