Overview
El Centro-9th Street is an operational air monitoring station in El Centro, California, managed by the California Air Resources Board. It provides ambient air quality data as part of the US EPA Air Quality System network.
El Centro-9th Street is an air monitoring station located at 150 9th Street in El Centro, California, within Imperial County. Operated by the California Air Resources Board, the station is part of the broader US EPA Air Quality System (AQS) network, which monitors criteria pollutants and other atmospheric parameters to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station is currently operational and contributes to regional air quality assessments. The station operates under the regulatory framework of the US Clean Air Act, with data reported to the EPA's AQS database. Typical air monitoring stations in California measure pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station's siting follows EPA guidelines for representativeness, ensuring data reflects local ambient conditions. The California Air Resources Board oversees quality assurance and data validation. El Centro is located in the Imperial Valley, a region with agricultural activity and proximity to the US-Mexico border. Air quality in the area can be influenced by dust from agriculture, vehicle emissions, and cross-border pollution. The station's data supports public health advisories and regulatory actions, helping to protect communities in the region. Continuous monitoring contributes to long-term trend analysis and policy development.
Environmental context
The Imperial Valley's arid climate and agricultural operations generate particulate matter from soil dust and burning, while vehicle traffic and industrial activities contribute to ozone precursors. The El Centro-9th Street station monitors these pollutants to assess compliance with NAAQS and inform local air quality management. Its location in a populated area provides representative data for exposure assessment, supporting public health interventions and regional planning.
Frequently asked questions
The station is located at 150 9th Street in El Centro, California, within Imperial County.
As part of the EPA AQS network, the station typically monitors criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, though specific parameters may vary.
The station is operated by the California Air Resources Board (CARB), which manages air quality monitoring across the state.
Air monitoring in the US is governed by the Clean Air Act, with the EPA setting National Ambient Air Quality Standards (NAAQS) and overseeing the Air Quality System (AQS) network.
El Centro is in the Imperial Valley, where agricultural dust, vehicle emissions, and cross-border pollution affect air quality. Monitoring helps protect public health and supports regulatory compliance.
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