Overview
MESA is an operational air monitoring station in Mesa, Arizona, operated by Maricopa County Air Quality. It contributes to local and national air quality surveillance under the US EPA AQS framework.
MESA is an air monitoring station located at 310 S Brooks in Mesa, Arizona, within Maricopa County. The station is operational and reports to the Maricopa County Air Quality agency, playing a role in the broader US EPA Air Quality System (AQS) network that tracks criteria pollutants and other parameters. As part of the AQS network, MESA likely measures criteria pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide, following EPA siting and method standards. The station's last reported sample date is September 30, 2025, indicating recent active monitoring. Maricopa County's air quality program is known for comprehensive monitoring in a region with significant urban and industrial emissions. The station's location in Mesa, a major city in the Phoenix metropolitan area, provides representative data for a densely populated arid region. This data supports regulatory compliance, public health advisories, and air quality trend analysis, contributing to the EPA's mission to protect human health and the environment.
Environmental context
MESA operates in the Sonoran Desert, where high temperatures and sunlight promote ozone formation. The Phoenix metro area faces challenges with particulate matter from dust and vehicle emissions. Monitoring at this station helps track compliance with National Ambient Air Quality Standards (NAAQS) and supports local air quality management. The station's siting in a mixed residential-commercial area provides representative data for population exposure assessment.
Frequently asked questions
The MESA air monitoring station is located at 310 S Brooks in Mesa, Arizona, United States.
As part of the US EPA AQS network, MESA likely measures criteria pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide, following standard EPA methods.
The MESA station is operated by Maricopa County Air Quality, which manages a network of monitors across the county.
Air monitoring in the US is governed by the Clean Air Act and implemented through the EPA's Air Quality System (AQS), which sets standards for monitoring methods, siting, and data reporting.
Mesa's arid climate and urban setting contribute to ozone and particulate matter challenges. Monitoring helps ensure compliance with NAAQS and provides data for public health advisories and air quality management.
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