Overview
Visalia-W. Ashland Avenue is an operational air monitoring station in Visalia, California, operated under the California Air Resources Board. It provides ambient air quality data for the San Joaquin Valley region.
Visalia-W. Ashland Avenue is an air monitoring station located at 2005 West Ashland Avenue, Suite G, Visalia, California, within Tulare County. The station is part of the California Air Resources Board (CARB) monitoring network and is currently operational, contributing to the state's ambient air quality surveillance. The station operates under the regulatory framework of the U.S. EPA Air Quality System (AQS), which sets standards for criteria pollutants such as ozone, particulate matter, carbon monoxide, nitrogen dioxide, sulfur dioxide, and lead. As part of CARB's network, it supports compliance with the Clean Air Act and provides data for air quality index reporting and health advisories. Located in the San Joaquin Valley, a region known for agricultural activity and occasional poor air quality due to topography and emissions, this station plays a key role in monitoring pollutant levels and informing public health decisions. Its data helps track long-term trends and supports regulatory actions to improve regional air quality.
Environmental context
The San Joaquin Valley faces significant air quality challenges due to a combination of agricultural emissions, vehicle traffic, and geographic conditions that trap pollutants. Monitoring stations like Visalia-W. Ashland Avenue are critical for measuring criteria pollutants and supporting compliance with National Ambient Air Quality Standards (NAAQS). The station's location in an urban area provides representative data for population exposure assessments.
Frequently asked questions
The station is located at 2005 West Ashland Avenue, Suite G, Visalia, California, 93277, in Tulare County.
As part of the California Air Resources Board network, it typically measures criteria pollutants such as ozone, particulate matter, and nitrogen oxides, in line with EPA standards.
The station is operated by the California Air Resources Board (CARB), which oversees air quality monitoring across the state.
Air monitoring stations in the U.S. operate under the EPA's Air Quality System (AQS), which sets standards for monitoring methods, quality assurance, and data reporting to ensure compliance with the Clean Air Act.
The San Joaquin Valley experiences some of the worst air quality in the U.S. due to agricultural emissions, traffic, and geographic trapping of pollutants. Monitoring provides data for health advisories and regulatory actions to protect public health.
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