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José Cardel, a municipality nestled within the state of Veracruz, Mexico, occupies a geographically significant position along the Gulf of Mexico coastline. Located at approximately 19.3667°N latitude and 96.3667°W longitude, the city’s terrain is characterized by a relatively flat coastal plain, typical of the region. Its elevation is low, contributing to limited atmospheric dispersion of pollutants. The surrounding landscape is a mix of coastal wetlands, mangrove forests, and agricultural lands, primarily dedicated to sugarcane and citrus cultivation. This agricultural activity, while economically important, introduces potential sources of particulate matter from field preparation and harvesting, as well as pesticide drift. The proximity to the Gulf of Mexico introduces a constant source of humidity and salt spray, influencing local weather patterns and potentially contributing to aerosol formation. While not a major industrial hub, the presence of smaller-scale processing facilities related to agriculture and fishing contributes to localized emissions. The urban-rural gradient is relatively sharp, with agricultural areas immediately bordering the city limits. This proximity means that prevailing winds can readily transport pollutants from agricultural sources into the urban center, impacting air quality. The city’s location within a tropical climate zone further complicates air quality dynamics, with high humidity and temperature influencing chemical reactions in the atmosphere.

José Cardel experiences a distinct wet and dry season, heavily influencing its air quality. The dry season, typically from February to May, sees a concentration of pollutants due to reduced rainfall and increased dust from agricultural activities. Stable atmospheric conditions during this period can lead to temperature inversions, trapping pollutants near the ground. March and April are often the months with the poorest air quality. The onset of the wet season in June brings relief, with frequent rainfall effectively scavenging pollutants from the atmosphere. However, increased humidity can also promote the formation of secondary pollutants like ozone. August and September, peak months for rainfall, generally offer the best air quality. The hurricane season, running from June to November, introduces the potential for strong winds that can both disperse and concentrate pollutants depending on storm track. Sensitive groups, including children, the elderly, and those with respiratory conditions, should limit strenuous outdoor activity during the dry season and monitor local conditions during hurricane events. The warm, humid climate throughout the year also fosters mold growth, which can exacerbate respiratory issues. Monitoring wind direction is crucial, as pollutants from agricultural burning can be carried into the city.