HAYDEN OLD JAIL Air Monitoring Station, Hayden, Arizona | Environmental Monitoring

HAYDEN OLD JAIL is an air monitoring station located in Hayden, Gila County, Arizona, United States. It is part of the national ambient air quality monitoring network and is operated by the Arizona Department of Environmental Quality. The station contributes to the US EPA Air Quality System (AQS), which collects and manages air quality data across the country. The station operates under the regulatory framework of the US Clean Air Act and the National Ambient Air Quality Standards (NAAQS). As an air monitoring station, it likely measures criteria pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide, though specific parameters are not detailed. The station's last reported sample date is September 30, 2025, indicating ongoing operations. Located in a rural area near the town of Hayden, the station provides important air quality data for the region, which may be influenced by local industrial activities and transportation. The data supports public health assessments and regulatory compliance efforts. The station's role in the monitoring network helps ensure representative air quality measurements for the community.

The station is situated in a semi-arid region of Arizona, where air quality can be affected by dust, wildfires, and local emissions from mining and industrial operations. Monitoring in such areas is critical for understanding pollutant transport and ensuring compliance with NAAQS. The station's siting and parameter coverage are designed to capture representative conditions, contributing to the broader EPA AQS network.