Overview
BLUE POINT-SHERIFF STATION-TONTO NF-SALT RIVER RECREATION AREA is an air monitoring station in Blue Point, Arizona. It is operated by Maricopa County Air Quality and provides data on ambient air quality in the Salt River recreation area.
BLUE POINT-SHERIFF STATION-TONTO NF-SALT RIVER RECREATION AREA is an air monitoring station located in the Blue Point District of Maricopa County, Arizona, United States. The station is situated along USERY PASS RD/BUSH HWY and serves the Tonto National Forest and Salt River recreation area. It is part of the Maricopa County Air Quality monitoring network, which tracks air pollutants to protect public health and the environment. The station operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA) Air Quality System (AQS). It collects data on criteria pollutants such as ozone, particulate matter, and others as required by the Clean Air Act. The station's last reported sample date is September 30, 2025, indicating ongoing monitoring activities. The network typically includes a range of monitoring technologies, from continuous analyzers to manual samplers, depending on the parameters measured. The environmental significance of this station lies in its role in assessing air quality in a region that combines recreational use, forested areas, and proximity to the Phoenix metropolitan area. Data from this station helps inform local air quality management decisions, such as issuing health advisories during high pollution events. It also contributes to regional air quality planning and compliance with National Ambient Air Quality Standards (NAAQS).
Environmental context
The station is located in the Salt River recreation area within the Tonto National Forest, a region characterized by desert and mountain ecosystems. Air quality in this area can be influenced by local sources such as vehicle emissions from recreational traffic, dust from unpaved roads, and regional transport of pollutants from the Phoenix metro area. Monitoring at this site helps assess the representativeness of air quality in a mixed-use environment, balancing recreational and natural preservation interests.
Frequently asked questions
The station is located at USERY PASS RD/BUSH HWY in the Blue Point District of Maricopa County, Arizona, United States. It is situated within the Tonto National Forest near the Salt River recreation area.
The station is operated by Maricopa County Air Quality, which is the local air quality management agency responsible for monitoring and regulating air pollutants in Maricopa County, Arizona.
As part of the Maricopa County Air Quality network, the station likely monitors criteria pollutants such as ozone (O3), particulate matter (PM2.5 and PM10), carbon monoxide (CO), sulfur dioxide (SO2), and nitrogen dioxide (NO2), in accordance with EPA requirements.
The station provides data to the EPA's Air Quality System (AQS), which is used to determine compliance with National Ambient Air Quality Standards (NAAQS). This data supports air quality management, public health advisories, and regulatory actions.
Monitoring in this area helps assess the impact of recreational activities and regional pollution transport on air quality in a protected forest ecosystem. It also provides baseline data for understanding air quality in a mixed-use environment near a major metropolitan area.
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