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Cisternino, nestled in the heart of Puglia, Italy, occupies a picturesque position on the Murge plateau. Its coordinates (40.7500, 17.4167) place it within a predominantly rural landscape, characterised by rolling hills, olive groves, and vineyards. The town itself is built upon a karstic terrain, a landscape sculpted by the dissolution of soluble rocks, creating a unique topography of caves and depressions. Elevation ranges between 400-500 meters above sea level, influencing local wind patterns and contributing to temperature variations. Cisternino is approximately 15km inland from the Adriatic Sea, a proximity that introduces maritime influences but also buffers it from the most intense coastal pollution sources. While not directly within a major industrial belt, the wider region of Puglia experiences agricultural activity, including olive oil production and viticulture, which can contribute to particulate matter from field preparation and harvesting. The urban-rural gradient is pronounced; Cisternino maintains a relatively small population of around 11,139, surrounded by extensive agricultural land. This balance impacts air quality, with potential for localised pollution from domestic heating and traffic, but also benefits from natural ventilation and pollutant dispersion from the surrounding countryside. The prevailing winds, generally from the north-east, play a crucial role in carrying pollutants away from the town, though stagnant conditions can occur during certain periods.

Air quality in Cisternino follows a distinct seasonal pattern. Spring (March-May) sees a gradual improvement after the winter months, though agricultural burning for land preparation can temporarily elevate particulate matter levels. Gentle breezes from the Adriatic help to disperse pollutants. Summer (June-August) typically offers the cleanest air, with high temperatures promoting atmospheric mixing and minimal heating demands. However, prolonged heatwaves can exacerbate ozone formation. Autumn (September-November) marks a transition, with increased agricultural activity – particularly olive harvesting – contributing to localised dust. The first heating systems are activated as temperatures drop, leading to a gradual decline in air quality. Winter (December-February) represents the period of greatest concern. Low temperatures and frequent temperature inversions trap pollutants near the ground, particularly from wood-burning stoves and domestic heating. Calm wind conditions exacerbate this effect. Fog, common during winter mornings, can further concentrate pollutants. Sensitive individuals – the elderly, children, and those with respiratory conditions – should limit strenuous outdoor activity during prolonged cold spells and periods of fog. Months to favour for outdoor activity are June, July, and August, while November, January, and February require greater caution.