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Goya, located in the province of Corrientes, Argentina, occupies a strategic position within the Paraná River basin, a vast and fertile floodplain. Its coordinates, -29.1333° latitude and -59.2500° longitude, place it in the subtropical region of the country, characterized by a humid climate and expansive wetlands. The city’s terrain is predominantly flat, typical of the Mesopotamian plains, with elevations rarely exceeding 30 meters above sea level. This low-lying geography significantly influences air quality; stagnant air conditions are common, particularly during periods of high atmospheric pressure, hindering pollutant dispersion. Goya sits amidst a mosaic of agricultural lands, primarily dedicated to cattle ranching and the cultivation of rice, soybeans, and yerba mate – all significant contributors to regional economic activity. To the west, the landscape transitions into the Iberá Wetlands, one of the largest freshwater wetlands in the world, providing a natural buffer but also a potential source of biogenic volatile organic compounds (BVOCs). The urban–rural gradient around Goya is relatively gradual, with smaller agricultural settlements and rural communities interspersed throughout the surrounding plains. The Paraná River itself, flowing to the south, plays a crucial role in the regional climate and hydrology, influencing humidity levels and occasionally contributing to localized fog events. While Goya isn't directly adjacent to major industrial belts, the transport of agricultural products via river and road networks introduces some vehicular emissions and potential dust pollution, impacting the city’s overall air quality profile.

Goya’s subtropical climate dictates a distinct seasonal pattern in air quality. The warm, humid summers (December to February) are often characterized by stagnant air and elevated levels of particulate matter, particularly dust originating from agricultural activities and unpaved roads. High temperatures exacerbate ozone formation, a secondary pollutant resulting from reactions involving sunlight and precursor gases. The prevalence of fog, especially in the early morning hours, further traps pollutants close to the ground. Spring (September to November) typically brings improved air quality as winds increase and rainfall becomes more frequent, washing away accumulated dust and pollutants. Autumn (March to May) sees a gradual decline in air quality as temperatures cool, and the likelihood of temperature inversions increases, trapping pollutants in the lower atmosphere. These inversions, common during clear, calm nights, can lead to localized pollution episodes. Winter (June to August) is generally the most challenging period for air quality. Cold, stable air masses combined with reduced wind speeds and frequent fog events create conditions conducive to pollutant accumulation. Agricultural burning, a common practice for land clearing and crop residue disposal, can significantly worsen air quality during this season. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit outdoor activity during periods of stagnant air, fog, and agricultural burning. Staying indoors with air purifiers and avoiding strenuous exercise are recommended during these times. Increased vigilance and awareness of local weather conditions are crucial for protecting respiratory health throughout the year.