Overview
Nogales Air Monitoring Station in Arizona, operated by the National Park Service, monitors ambient air quality in the border region. The station provides data on criteria pollutants and supports regulatory compliance under the US EPA AQS network.
The Nogales Air Monitoring Station is an operational air quality monitoring facility located in Nogales, Santa Cruz County, Arizona, United States. Operated by the National Park Service, this station is part of a broader network that tracks ambient air pollution levels in the region. As a single-station site, it contributes to local and regional air quality assessments, supporting the US EPA's Air Quality System (AQS) monitoring network. The station reports data to the National Park Service, with the most recent sample collected on February 27, 2025. While specific parameters measured are not detailed, typical monitoring at such stations includes criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station's siting in Nogales provides representative data for the border area, influenced by both local emissions and transboundary pollution. Environmental monitoring at this station is significant for understanding air quality trends in the Sonoran Desert region, where dust, vehicle emissions, and industrial activities from nearby urban centers and the US-Mexico border can impact air quality. Data from this station supports public health advisories and regulatory actions under the Clean Air Act, contributing to the protection of sensitive ecosystems and communities in southern Arizona.
Environmental context
The Nogales area lies in the Sonoran Desert, characterized by arid conditions and frequent dust events. Air quality is influenced by local traffic, industrial activities in Nogales (both Arizona and Sonora, Mexico), and seasonal wildfires. Monitoring criteria pollutants here is critical for assessing compliance with National Ambient Air Quality Standards (NAAQS) and understanding transboundary pollution dynamics. The station's data helps inform public health warnings and regional air quality management strategies.
Frequently asked questions
The Nogales Air Monitoring Station is located in Nogales, Santa Cruz County, Arizona, United States, near the US-Mexico border.
The station is operated by the National Park Service, which manages air quality monitoring in protected areas and collaborates with the US EPA.
Typical air monitoring stations measure criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead.
The station is part of the US EPA's Air Quality System (AQS) network, which supports compliance with the Clean Air Act and National Ambient Air Quality Standards (NAAQS).
Nogales is a border city with transboundary pollution sources, including traffic and industry. Monitoring helps protect public health and ecosystems in the Sonoran Desert region.
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