Overview
Ontario-Airport is an operational air monitoring station in Ontario, California, operated by the California Air Resources Board. It contributes to the US EPA Air Quality System (AQS) network for ambient air quality surveillance.
Ontario-Airport is an air monitoring station located at the airport in Ontario, San Bernardino County, California, United States. The facility is operational and falls under the oversight of the California Air Resources Board (CARB), a key agency in the state's environmental monitoring infrastructure. As part of the broader US EPA Air Quality System (AQS) network, this station plays a role in tracking criteria pollutants and supporting regulatory compliance. The station operates within California's comprehensive air monitoring framework, which includes numerous sites across the state measuring pollutants such as ozone, particulate matter, nitrogen dioxide, and carbon monoxide. Typical airport-adjacent monitors focus on traffic-related emissions and meteorological conditions. The station's siting near an airport ensures representativeness for local air quality impacts from aviation and ground support activities. Environmental monitoring at this location supports public health protection by providing data for air quality index reporting and regulatory assessments. The data collected helps inform local and state-level decisions on emission controls and transportation planning. As part of CARB's network, the station contributes to California's efforts to meet federal and state ambient air quality standards.
Environmental context
Ontario-Airport station is situated in the South Coast Air Basin, an area with historically high ozone and particulate matter levels due to dense population, traffic, and industrial activity. The station's location near an airport allows for monitoring of aviation-related emissions, including ultrafine particles and nitrogen oxides. Data from this site supports the US EPA AQS network and California's compliance with the Clean Air Act, aiding in the assessment of regional air quality trends and the effectiveness of emission reduction strategies.
Frequently asked questions
The Ontario-Airport air monitoring station is located at the airport in Ontario, San Bernardino County, California, United States.
The station is operated by the California Air Resources Board (CARB), which oversees air quality monitoring across the state.
Typical airport monitoring stations measure criteria pollutants such as ozone, particulate matter, nitrogen dioxide, and carbon monoxide, as well as meteorological data.
The station is part of the US EPA Air Quality System (AQS) network, which collects ambient air quality data from thousands of monitors nationwide to support regulatory compliance and public reporting.
California has stringent ambient air quality standards under the Clean Air Act and state laws. Monitoring stations like Ontario-Airport provide data essential for assessing compliance, issuing air quality forecasts, and guiding emission reduction policies.
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