Overview
Stockton-Hazelton is an operational air monitoring station in Stockton, California, operated under the California Air Resources Board. It provides ambient air quality data for the San Joaquin Valley region.
Stockton-Hazelton is an air monitoring station located in Stockton, California, within San Joaquin County. It is part of the California Air Resources Board (CARB) monitoring network, which supports the US EPA Air Quality System (AQS). The station contributes to the state's comprehensive air quality surveillance program, focusing on criteria pollutants and other atmospheric parameters. The station operates under California's stringent air quality regulations, which align with the federal Clean Air Act. CARB's network includes over 250 monitoring sites statewide, with Stockton-Hazelton providing data for the San Joaquin Valley air basin, a region known for challenges with ozone and particulate matter. Typical monitoring equipment includes federal reference methods for PM2.5, ozone, nitrogen dioxide, and meteorological sensors. Environmental monitoring at this site is critical for assessing compliance with National Ambient Air Quality Standards (NAAQS) and informing public health advisories. The data supports local air district management strategies and contributes to long-term trend analysis for the Central Valley, where agricultural and transportation emissions are significant.
Environmental context
The San Joaquin Valley experiences some of the highest particulate matter and ozone levels in the United States due to a combination of geographic trapping, agricultural emissions, and vehicle traffic. Air monitoring stations like Stockton-Hazelton are strategically sited to capture representative ambient conditions. The station's parameter coverage typically includes criteria pollutants (O3, PM2.5, NO2) and meteorological variables, ensuring data continuity for regulatory compliance and health research.
Frequently asked questions
The Stockton-Hazelton air monitoring station is located in Stockton, California, USA, at the intersection of Hazelton Avenue and Highway 99. It is situated in San Joaquin County within the San Joaquin Valley air basin.
The station monitors criteria air pollutants such as ozone (O3), fine particulate matter (PM2.5), and nitrogen dioxide (NO2), along with meteorological parameters like wind speed and direction. This data supports compliance with National Ambient Air Quality Standards (NAAQS).
The station is operated by the California Air Resources Board (CARB), which manages a statewide network of air monitoring stations. CARB ensures data quality and reporting to the US EPA Air Quality System (AQS).
Data from this station is used to assess compliance with federal and state air quality standards, inform public health advisories, and support emission reduction strategies in the San Joaquin Valley. It is part of the US EPA's AQS network, which tracks long-term trends.
The San Joaquin Valley faces persistent air quality challenges due to geography, agriculture, and transportation. Monitoring stations like Stockton-Hazelton provide critical data for understanding pollution patterns and implementing effective control measures under the Clean Air Act.
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