Overview
El Monte Air Monitoring Station in California, operated by the California Air Resources Board, tracks ambient air quality in the Los Angeles area. It supports regulatory compliance and public health protection.
El Monte is an air monitoring station located at 915 Flair Drive in El Monte, California, within Los Angeles County. It is part of the state's ambient air quality surveillance network and is operated by the California Air Resources Board (CARB). As a fixed-site monitoring station, it contributes to the comprehensive air quality monitoring infrastructure in the South Coast Air Basin. The station operates under the regulatory framework of the U.S. Environmental Protection Agency's Air Quality System (AQS) and California's stringent air quality standards. Typical equipment at such stations includes continuous analyzers for criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station may also measure meteorological parameters like wind speed, wind direction, temperature, and humidity to support data interpretation. Environmental monitoring in the El Monte area is critical due to the region's high population density, heavy traffic, and industrial activity, which contribute to elevated ozone and particulate matter levels. Data from this station helps inform public health advisories, regulatory actions, and long-term air quality trends. The station's location in a residential and commercial area provides representative sampling of population exposure.
Environmental context
El Monte is situated in the San Gabriel Valley, a region known for frequent ozone exceedances due to topography and vehicle emissions. The station's siting is representative of urban exposure, capturing pollutants from nearby freeways and local sources. Monitoring parameters typically include criteria pollutants and meteorological data, supporting compliance with the National Ambient Air Quality Standards (NAAQS) and California's more protective standards. Reporting continuity is maintained through CARB's quality assurance protocols.
Frequently asked questions
The El Monte Air Monitoring Station is located at 915 Flair Drive, El Monte, California, in Los Angeles County.
As part of the California Air Resources Board network, the station typically measures criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, along with meteorological parameters.
The station is operated by the California Air Resources Board (CARB), the state agency responsible for air quality management.
Air monitoring in California operates under the U.S. Environmental Protection Agency's Air Quality System (AQS) and the California Clean Air Act, with standards often more stringent than federal NAAQS.
El Monte is in the South Coast Air Basin, which faces challenges from vehicle emissions and industrial sources. Monitoring helps assess compliance with air quality standards and protect public health.
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