Tepetlaoxtoc Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Tepetlaoxtoc, nestled in the State of México, occupies a crucial position within the broader Mexico City Metropolitan Area, though maintaining a distinct, smaller-city character. Located at coordinates 19.5731° N, -98.8203° W, the city sits at an elevation of approximately 2,270 meters (7,448 feet) within the Trans-Mexican Volcanic Belt. This high altitude significantly influences atmospheric conditions, contributing to lower oxygen levels and potentially exacerbating pollutant concentrations. The surrounding landscape is dominated by rolling hills and agricultural lands, primarily maize and other staple crops, interspersed with patches of remnant forests. Tepetlaoxtoc’s proximity to the larger industrial zones of Tultitlán and Ecatepec, to the south, introduces a significant source of regional air pollution. The urban-rural gradient is pronounced; while the city centre exhibits denser development, the periphery quickly transitions into agricultural fields. The lack of substantial bodies of water nearby means limited evaporative cooling, and the terrain offers limited natural ventilation, trapping pollutants during stable atmospheric conditions. This geographical setting, combined with the city’s role as a commuter town for Mexico City, creates a complex air quality challenge. The prevailing winds, often from the north, can transport pollutants from more industrialised areas directly over Tepetlaoxtoc.

Air quality in Tepetlaoxtoc follows a distinct seasonal pattern. The dry season, typically from November to May, witnesses the poorest air quality. Reduced rainfall means less atmospheric cleansing, and temperature inversions are common during the cooler mornings, trapping pollutants near the ground. January and February are often the most challenging months, with stagnant air and increased emissions from domestic heating. As temperatures rise in March and April, agricultural burning becomes a contributing factor, adding particulate matter to the air. The onset of the rainy season in June brings a noticeable improvement, as rainfall washes away pollutants and increased humidity suppresses dust. July, August, and September generally offer the cleanest air, though localised flooding can sometimes disrupt traffic and increase vehicle emissions. However, even during the wet season, regional pollution from Mexico City can still impact Tepetlaoxtoc. October sees a gradual deterioration as the rains subside. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during the dry season, particularly in January and February. Monitoring local conditions and staying indoors on high-pollution days is crucial for protecting health.