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Bejucal, nestled in the Mayabeque province of Cuba, occupies a geographically significant position within the western part of the island. Located at coordinates 22.9328, -82.3869, the city sits on relatively flat terrain, part of the broader Havana-Pinar del Río plain. This plain is characterized by karst landscapes, with numerous caves and underground drainage systems influencing local hydrology. Bejucal’s elevation is modest, contributing to limited natural dispersion of pollutants. The city is approximately 15 kilometers south of the coastline, influenced by trade winds and occasional tropical storm systems. Surrounding Bejucal is a mix of agricultural land, primarily dedicated to sugarcane and citrus cultivation, and pockets of remnant natural vegetation. The urban-rural gradient is relatively sharp, with agricultural areas immediately bordering the city limits. While not a major industrial hub itself, Bejucal’s proximity to Havana, a significant industrial and port city, means it can experience pollutant transport. The prevailing winds, generally from the east, can carry emissions from Havana westward, impacting Bejucal’s air quality. The local topography offers limited shielding from these transported pollutants, and the flat terrain hinders their dissipation. This combination of factors creates a localized air quality vulnerability.

Bejucal experiences a tropical climate with distinct wet and dry seasons, heavily influencing air quality. The dry season, typically from November to April, sees lower rainfall and increased dust suspension, particularly from agricultural activities. This leads to elevated particulate matter concentrations, impacting respiratory health. Stable atmospheric conditions during these months can exacerbate pollution, trapping pollutants near the ground. The wet season, from May to October, brings relief through rainfall which washes away pollutants, but also increased humidity fostering mold growth, a potential allergen. August and September, coinciding with the peak of the hurricane season, can bring intense rainfall and strong winds, temporarily improving air quality but also posing risks from storm damage and potential release of pollutants from damaged infrastructure. Temperature inversions, common during the cooler months of December and January, can trap pollutants, worsening air quality. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during the dry season and periods of temperature inversion. Monitoring weather patterns and avoiding outdoor exertion during peak dust or humidity periods is advisable. The transition months of April/May and October/November often experience fluctuating conditions, requiring increased vigilance.