Overview
Green Valley Air Monitoring Station in Arizona, operated by Pima County Department of Environmental Quality, monitors ambient air quality as part of the US EPA AQS network. It provides data on criteria pollutants to support regulatory compliance and
The Green Valley Air Monitoring Station, located at 601 North La Canada Drive in Green Valley, Arizona, is an operational air quality monitoring facility within the United States. Operated by the Pima County Department of Environmental Quality, it is part of the national network that feeds into the US EPA Air Quality System (AQS). This station plays a role in tracking ambient air pollution levels in the region, contributing to the broader environmental monitoring infrastructure. The station operates under the regulatory framework of the US Clean Air Act, which mandates monitoring of criteria pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead. As part of the Pima County network, it likely measures a subset of these pollutants using federal reference methods or equivalent technologies. The station's last reported sample date is June 30, 2025, indicating ongoing data collection. Environmental monitoring in Green Valley is significant due to the area's desert climate and proximity to urban and industrial activities in Tucson. The station helps assess air quality impacts from transportation, mining, and other sources, supporting public health advisories and regulatory actions. Its data contributes to regional air quality management and compliance with National Ambient Air Quality Standards (NAAQS).
Environmental context
Green Valley is located in Pima County, Arizona, a region characterized by arid climate and occasional dust storms. Air quality monitoring here focuses on particulate matter (PM10 and PM2.5) from natural and anthropogenic sources, as well as ozone from urban precursors. The station's siting aims to represent population exposure and background conditions, supporting the EPA's monitoring objectives for public health protection.
Frequently asked questions
The Green Valley Air Monitoring Station is located at 601 North La Canada Drive in Green Valley, Arizona, United States.
The station monitors ambient air quality, likely measuring criteria pollutants such as ozone, particulate matter, and others as part of the US EPA Air Quality System.
The station is operated by the Pima County Department of Environmental Quality.
Air monitoring in the US is governed by the Clean Air Act and implemented through the EPA's Air Quality System (AQS), which sets National Ambient Air Quality Standards (NAAQS) for criteria pollutants.
Air monitoring in Green Valley helps assess air quality impacts from local sources like transportation and mining, and supports public health protection in a desert region prone to dust and ozone events.
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