Overview
San Francisco Air Monitoring Station in California, USA, operated by the California Air Resources Board, provides ambient air quality data as part of the US EPA AQS network.
The San Francisco Air Monitoring Station is a key facility within the United States Environmental Protection Agency's Air Quality System (AQS) network, located at 10 Arkansas Street in San Francisco, California. Operated by the California Air Resources Board, this station contributes to the comprehensive monitoring of criteria pollutants and other atmospheric parameters across the state. As part of a dense urban monitoring network, it supports regulatory compliance with the Clean Air Act and provides data for public health advisories. The station is equipped to measure a range of pollutants, including ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, as well as meteorological parameters such as wind speed and direction. The California Air Resources Board ensures data quality through rigorous calibration and quality assurance protocols, with recent sampling data from June 2025 indicating ongoing operational status. The station's siting follows EPA guidelines for representativeness, capturing urban background and near-road exposures. Environmental monitoring in San Francisco is critical due to the city's dense population, traffic emissions, and proximity to industrial zones. Data from this station informs air quality index reports, supports epidemiological studies, and guides emission reduction strategies. The station's long-term record contributes to trend analysis and policy evaluation, helping to protect public health and the environment in the Bay Area.
Environmental context
San Francisco's air quality is influenced by a mix of urban emissions, marine air from the Pacific, and seasonal wildfires. The station's location in a mixed residential-industrial area provides representative data for population exposure. Monitoring covers criteria pollutants and meteorological parameters, with siting designed to capture both background and source-oriented impacts. The California Air Resources Board's network ensures compliance with National Ambient Air Quality Standards (NAAQS) and supports regional air quality management.
Frequently asked questions
The San Francisco Air Monitoring Station is located at 10 Arkansas Street in San Francisco, California, United States.
The station measures criteria pollutants including 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), which is responsible for air quality management in California.
The station is part of the US EPA's Air Quality System (AQS) network, which supports compliance with the Clean Air Act and National Ambient Air Quality Standards (NAAQS).
Air monitoring in San Francisco is crucial due to high population density, traffic emissions, and seasonal wildfire smoke, providing data for public health advisories and emission reduction policies.
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