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Marmara Ereğlisi, nestled in the Tekirdağ Province of Turkey, occupies a crucial position on the northern coast of the Marmara Sea. Its geography is defined by a relatively flat coastal plain, gently rising inland towards rolling hills. The city’s elevation is low, averaging around 20 meters, making it particularly susceptible to the accumulation of pollutants. This coastal location, while offering recreational opportunities, also exposes the city to maritime air masses that can transport pollutants from Istanbul and the heavily industrialized regions surrounding the Sea of Marmara. The surrounding landscape is a mix of agricultural land – primarily sunflower and grain fields – and increasingly, residential development spurred by Istanbul’s outward expansion. The urban-rural gradient is becoming blurred as the city grows, with peri-urban areas experiencing a shift from agricultural to industrial and residential uses. The prevailing winds, often from the northwest, carry pollutants across the sea, impacting air quality. The proximity to major shipping lanes further contributes to particulate matter and sulfur dioxide levels. Understanding this interplay between coastal geography, industrial activity, and agricultural practices is vital to addressing Marmara Ereğlisi’s air quality challenges.

Marmara Ereğlisi experiences a Mediterranean climate with hot, dry summers and cool, wet winters, significantly influencing its air quality patterns. Pollution typically peaks during the summer months (June-August) due to increased temperatures promoting photochemical smog formation, and reduced rainfall offering less atmospheric cleansing. Stagnant air masses, common during summer high-pressure systems, exacerbate the issue, trapping pollutants near the ground. Autumn (September-November) sees a gradual improvement as temperatures cool and precipitation increases, though agricultural burning can temporarily worsen conditions. Winter (December-February) brings increased heating demands, leading to higher emissions from residential coal and wood burning, alongside potential temperature inversions that trap cold, polluted air. Spring (March-May) is a transitional period, with fluctuating weather patterns and moderate pollution levels. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during summer afternoons and winter mornings. Fog, frequent in winter, can also concentrate pollutants. Monitoring wind direction is crucial; winds from the southeast often bring pollutants from industrial areas further inland.