Tangerine Air Monitoring Station, Marana, Arizona | United States

Tangerine is an air monitoring station located at 12101 N Camino De Oeste in Tucson, Arizona, serving the Marana area. Operated by the Pima County Department of Environmental Quality, this station is part of the broader US EPA Air Quality System (AQS) network, which monitors criteria pollutants and other parameters to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station collects ambient air samples and reports data to the EPA AQS database, with the most recent sample date recorded as June 30, 2025. As a regulatory monitoring site, it typically measures pollutants such as ozone, particulate matter (PM2.5 and PM10), carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead, depending on the specific instrumentation deployed. The station's siting follows EPA guidelines to ensure representativeness of local air quality. Located in Pima County, the station contributes to understanding air quality in the Tucson metropolitan area and surrounding desert environment. The data supports public health advisories, air quality index reporting, and state implementation plans for attaining NAAQS. This monitoring is critical for assessing the impact of local emissions sources, including transportation and industrial activities, on community health and the environment.

The Tangerine station operates in the Sonoran Desert region, where air quality can be influenced by dust storms, wildfire smoke, and urban emissions from Tucson. Monitoring criteria pollutants like PM10 and ozone is essential due to the area's arid climate and growing population. The station's data helps track compliance with EPA standards and supports regional air quality management efforts.