Overview
Old South Phoenix Site is an operational air monitoring station in Phoenix, Arizona, operated under the Maricopa County Air Quality network. It contributes to local ambient air quality surveillance.
Old South Phoenix Site is an operational air monitoring station located at 4732 S Central Ave in Phoenix, Arizona, within Maricopa County. The station is part of the Maricopa County Air Quality network, which supports the US EPA's Air Quality System (AQS) for monitoring criteria pollutants and other parameters. The station operates under the regulatory framework of the US Clean Air Act, which mandates National Ambient Air Quality Standards (NAAQS) for pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead. As part of a county-level network, it provides data for compliance assessment and public health advisories. This site plays a role in characterizing air quality in the South Phoenix area, a region with diverse industrial and transportation emissions. Continuous monitoring helps inform local air quality management and supports community awareness of pollution levels.
Environmental context
The South Phoenix area experiences a hot desert climate with frequent temperature inversions that can trap pollutants near the ground. The station's location near major roadways and industrial zones makes it representative of urban exposure to traffic and industrial emissions. Monitoring at this site supports the Maricopa County Air Quality Department's efforts to assess compliance with NAAQS and to issue air quality alerts during high pollution events.
Frequently asked questions
The Old South Phoenix Site is located at 4732 S Central Ave, Phoenix, Arizona, in Maricopa County, United States.
As an air monitoring station, it measures criteria air pollutants such as ozone, particulate matter, and others as part of the Maricopa County Air Quality network, supporting compliance with the US Clean Air Act.
The station is operated under the Maricopa County Air Quality Department, which manages the local air monitoring network.
Air monitoring in Arizona is governed by the US Clean Air Act and the National Ambient Air Quality Standards (NAAQS), with data reported to the EPA's Air Quality System (AQS).
Phoenix's hot desert climate and urban emissions create conditions for high ozone and particulate matter levels. Monitoring helps protect public health and guide emission reduction strategies.
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