Overview
Caltrans-Chavez is an operational air monitoring station in San Diego, California, operated by the San Diego County Air Pollution Control District. It provides real-time air quality data as part of the local monitoring network.
Caltrans-Chavez is an air monitoring station located at 917-19 Cesar E Chavez Pkwy. in San Diego, California. Operated by the San Diego County Air Pollution Control District, it is part of the broader network of air quality monitoring stations in the region. The station contributes to the assessment of ambient air quality in a densely populated urban area with significant traffic and industrial activity. The station operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA) and the California Air Resources Board (CARB), which set standards for criteria pollutants such as ozone, particulate matter, carbon monoxide, nitrogen dioxide, sulfur dioxide, and lead. The San Diego County Air Pollution Control District manages the station and reports data to the EPA's Air Quality System (AQS). The station's last sample date was September 27, 2024, indicating ongoing data collection. As part of the San Diego air monitoring network, Caltrans-Chavez plays a key role in tracking air pollution trends and ensuring compliance with National Ambient Air Quality Standards (NAAQS). The data collected supports public health advisories and informs local air quality management strategies. The station's location near a major roadway (Cesar E Chavez Parkway) makes it particularly relevant for monitoring traffic-related emissions.
Environmental context
San Diego's air quality is influenced by a mix of urban sources, including vehicle emissions, port activities, and industrial operations. The region's Mediterranean climate, with frequent temperature inversions, can trap pollutants near the ground, exacerbating ozone and particulate matter issues. Monitoring stations like Caltrans-Chavez help assess exposure in populated areas and support regulatory compliance with the Clean Air Act. The station's siting near a major roadway provides representative data for near-road pollution, a key focus of EPA monitoring guidelines.
Frequently asked questions
Caltrans-Chavez is located at 917-19 Cesar E Chavez Pkwy. in San Diego, California, United States.
Caltrans-Chavez monitors ambient air quality, including criteria pollutants such as ozone, particulate matter, and nitrogen oxides, as part of the San Diego County air monitoring network.
The station is operated by the San Diego County Air Pollution Control District, which reports data to the U.S. EPA's Air Quality System.
The station operates under the U.S. Clean Air Act and National Ambient Air Quality Standards (NAAQS), with oversight from the EPA and California Air Resources Board.
The station provides real-time data on pollutant levels, supporting public health advisories, regulatory compliance, and local air quality improvement strategies.
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