Texarkana Air Quality Index (AQI)

Loading live AQI data...

Loading historical AQI trends...

Texarkana, Arkansas, occupies a unique position straddling the border with Texas, a characteristic reflected in its dual-city identity. Situated within the Ouachita Mountains foothills, the city’s terrain is gently rolling, with elevations ranging from approximately 350 to 500 feet above sea level. This topography, while not dramatically mountainous, can influence local air circulation patterns, occasionally trapping pollutants under stable atmospheric conditions. The surrounding landscape is a blend of urban development and agricultural land, with significant areas dedicated to timber production and cattle ranching. This proximity to agricultural zones introduces potential sources of particulate matter, particularly during planting and harvesting seasons. The city lies within the broader Mississippi River Delta region, though its distance from the river itself limits direct aquatic influences on air quality. Texarkana’s location within the broader South Central United States places it within a region historically associated with industrial activity, though Texarkana itself has largely transitioned to a service-based economy. The urban–rural gradient is relatively gradual, with smaller towns and rural communities extending outwards in all directions. The prevailing winds generally flow from the southwest, carrying air masses originating over the Gulf of Mexico, which can introduce humidity and, occasionally, pollutants from distant industrial areas. The city’s relatively small size and dispersed development pattern contribute to a generally moderate urban heat island effect, which can impact atmospheric stability and pollutant dispersion.

Texarkana’s air quality experiences a distinct seasonal cycle driven by meteorological factors. Spring (March-May) often presents challenges due to increased pollen levels from the surrounding forests and agricultural fields, impacting respiratory health. The warming temperatures also encourage agricultural burning in nearby rural areas, contributing to particulate matter. Summer (June-August) is typically characterized by high humidity and occasional periods of stagnant air, particularly during heatwaves. These conditions can exacerbate ozone formation, although the relatively low population density mitigates this somewhat. Fall (September-November) generally offers the most favorable air quality, with cooler temperatures, more frequent wind events, and reduced agricultural activity. However, occasional temperature inversions can trap pollutants near the ground, leading to localized episodes of poor air quality. Winter (December-February) presents a unique set of challenges. Cold, stable air masses frequently settle over the region, leading to temperature inversions that trap pollutants close to the surface. Fog, common during winter mornings, further restricts dispersion. Sensitive groups, including children, the elderly, and individuals with respiratory conditions, should limit prolonged outdoor exertion during periods of stagnant air or fog, particularly in the spring and winter months. While Texarkana doesn't experience a monsoon season, periods of heavy rainfall can temporarily cleanse the air of particulate matter, offering a brief respite from pollution. Overall, the months of October and November generally provide the best conditions for outdoor activities.