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Poulton le Fylde, nestled in Lancashire, England, occupies a geographically interesting position on the edge of the Fylde coast, a low-lying coastal plain characterized by fertile agricultural land. Its coordinates (53.8470, -2.9950) place it approximately 6 miles (9.7 km) from Blackpool and 20 miles (32 km) north of Preston, acting as a significant market town for the surrounding rural communities. The terrain is predominantly flat, a legacy of glacial deposits during the Pleistocene epoch, resulting in well-drained soils ideal for agriculture, particularly dairy farming and vegetable cultivation. This proximity to agricultural zones introduces potential sources of ammonia emissions, a precursor to particulate matter formation, impacting local air quality. The town sits relatively close to the Irish Sea, influencing local weather patterns and occasionally bringing in maritime air masses. While the Fylde coast generally benefits from sea breezes, the relatively flat topography can also trap pollutants, especially during periods of calm weather. The urban–rural gradient is gradual; Poulton le Fylde blends seamlessly into the surrounding farmland, with residential areas extending outwards. Historically, the town’s location as a port for agricultural produce contributed to its growth, and while industrial activity is limited compared to larger urban centres, the presence of local businesses and transport infrastructure still contributes to localised emissions. The lack of significant elevation means that pollutants don't readily disperse, and the coastal location can exacerbate issues related to sea salt aerosol and ozone formation under specific meteorological conditions.

Poulton le Fylde’s air quality experiences a distinct seasonal pattern largely dictated by meteorological conditions. Winter months, typically November through February, often present the greatest challenges. Cold temperatures frequently lead to temperature inversions, where a layer of warm air traps cooler air near the ground, preventing pollutants from dispersing. This, combined with reduced sunlight hours and increased domestic heating (primarily gas-based), results in elevated levels of particulate matter and nitrogen dioxide. Fog, common during these months, further exacerbates the problem by trapping pollutants close to the ground. Spring (March-May) sees a gradual improvement as temperatures rise and wind speeds increase, aiding in pollutant dispersion. Agricultural activities also ramp up, potentially releasing ammonia. Summer (June-August) generally offers the best air quality, with prevailing winds from the Irish Sea often cleansing the atmosphere. However, hot, still days can lead to ozone formation, particularly in areas with vehicle traffic. Autumn (September-October) marks a transitional period, with a return of cooler temperatures and the potential for stagnant air conditions, though typically less severe than winter. Sensitive groups, such as children, the elderly, and individuals with respiratory conditions, should be particularly cautious during winter months, limiting prolonged outdoor activity on days with poor visibility or noticeable odour. During warmer months, limiting strenuous activity during peak sunlight hours can mitigate potential ozone exposure. Awareness of local weather forecasts and air quality reports is crucial for making informed decisions about outdoor activities throughout the year.