Overview
Porterville Air Monitoring Station in California, operated by the San Joaquin Valley Unified Air Pollution Control District, provides ambient air quality data as part of the US EPA Air Quality System network.
Porterville is an air monitoring station located in Porterville, California, within Tulare County. It is operated by the San Joaquin Valley Unified Air Pollution Control District and contributes to the US EPA Air Quality System (AQS) network, which monitors criteria pollutants and other parameters to assess regional air quality. The station operates under the regulatory framework of the US Clean Air Act and EPA monitoring requirements. As part of the San Joaquin Valley, it supports compliance with National Ambient Air Quality Standards (NAAQS) for pollutants such as ozone, particulate matter, and others. The station provides continuous data with the most recent sample recorded in March 2025. This monitoring station plays a key role in tracking air quality in the San Joaquin Valley, a region known for agricultural emissions and geographic conditions that can lead to elevated pollutant levels. The data supports public health advisories, regulatory compliance, and air quality management strategies for the local community.
Environmental context
The San Joaquin Valley faces significant air quality challenges due to a combination of agricultural activities, industrial sources, and meteorological conditions that trap pollutants. The Porterville station monitors criteria pollutants and other parameters to assess compliance with NAAQS. Its siting is representative of urban and suburban exposure in the southern Central Valley, providing critical data for regulatory actions and public health protection.
Frequently asked questions
The Porterville Air Monitoring Station is located at 1839 South Newcomb Street, Porterville, California 93257, in Tulare County.
As part of the US EPA Air Quality System, the station monitors criteria pollutants such as ozone, particulate matter, carbon monoxide, nitrogen dioxide, and sulfur dioxide, along with meteorological parameters.
The station is operated by the San Joaquin Valley Unified Air Pollution Control District, which oversees air quality management in the region.
The station provides data used to assess compliance with National Ambient Air Quality Standards (NAAQS) under the Clean Air Act, helping to inform regulatory actions and public health advisories.
Air monitoring in the US is governed by the Clean Air Act and implemented through the EPA's Air Quality System (AQS) network, which sets standards for monitoring methods, quality assurance, and data reporting.
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