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Génova, nestled within the department of Quetzaltenango in Guatemala, occupies a geographically complex and historically significant position in the western highlands. Located at approximately 14.6167° latitude and -91.8333° longitude, and with a population of 46,294, the city sits at an elevation of roughly 2,300 meters (7,546 feet) above sea level. This high-altitude location significantly influences its climate and, consequently, its air quality. Génova is cradled within a valley surrounded by steep, forested slopes of the Sierra Madre de Gualán, a range contributing to localized weather patterns and trapping potential pollutants. The surrounding landscape is predominantly agricultural, with terraced hillsides dedicated to coffee, maize, and other crops – a vital economic driver but also a potential source of particulate matter from agricultural burning practices, particularly during harvest seasons. The urban–rural gradient is relatively sharp; the city transitions quickly into rural agricultural lands, impacting air quality as rural activities encroach upon the urban environment. While Génova lacks direct proximity to major bodies of water, the nearby Suchitepéquez River influences local humidity and temperature. Industrial activity is limited, primarily consisting of small-scale processing related to agriculture, which contributes modestly to localized air pollution. The valley’s topography, combined with the surrounding mountains, can create conditions conducive to temperature inversions, trapping pollutants close to the ground, especially during periods of calm weather. This geographical setting makes Génova particularly vulnerable to the impacts of regional air pollution events and localized emissions.

Génova’s air quality experiences a distinct seasonal pattern dictated by Guatemala’s tropical highland climate, characterized by a pronounced wet and dry season. The dry season, typically spanning November through April, often sees a gradual increase in particulate matter concentrations. This is largely attributable to agricultural burning practices as farmers clear fields for planting and harvest crops, releasing smoke and ash into the atmosphere. Calm wind conditions during this period exacerbate the problem, allowing pollutants to accumulate. Temperature inversions are also more frequent during the dry season, further trapping pollutants near the ground. The wet season, from May to October, brings increased rainfall and higher humidity, which naturally helps to cleanse the air by washing away particulate matter. However, periods of heavy fog, common during the wet season, can also trap pollutants, leading to localized episodes of reduced visibility and potentially impacting air quality. Months like November and December, transitioning from dry to wet, often experience the highest pollution levels due to a combination of lingering agricultural burning and decreasing rainfall. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season, particularly on days with limited wind and prevalent smoke. Outdoor activities are generally more favorable during the wet season, although vigilance regarding fog is advised. The interplay of agricultural practices, meteorological conditions, and the valley’s topography creates a dynamic air quality profile throughout the year.