Overview
Lassen Volcanic NP is an air monitoring station in Shasta County, California, operated under the CASTNET network. It provides long-term atmospheric data to assess the impacts of air pollution on ecosystems.
Lassen Volcanic NP is an air monitoring station located at Manzanita Lake RS within Lassen Volcanic National Park in Shasta County, California, United States. It is part of the Clean Air Status and Trends Network (CASTNET), a national program designed to monitor the effects of air pollution on sensitive ecosystems. The station is operated by Mactec, Inc. and reports to the U.S. Environmental Protection Agency (EPA) as part of the broader Air Quality System (AQS). As a CASTNET site, Lassen Volcanic NP measures key atmospheric parameters including ozone, sulfur dioxide, nitrogen compounds, and particulate matter, alongside meteorological variables such as temperature, wind speed, and precipitation. The station follows rigorous EPA protocols for siting and data quality assurance, ensuring representative measurements of regional air quality. Its remote location in a national park provides a baseline for understanding background pollution levels away from urban sources. The environmental significance of this station lies in its role within the National Park Service's air quality monitoring efforts. Data from Lassen Volcanic NP helps track the effectiveness of the Clean Air Act in protecting visibility and ecosystem health in Class I areas. The station contributes to long-term trend analysis and supports research on the impacts of atmospheric deposition on forests and aquatic systems in the Cascade Range.
Environmental context
Lassen Volcanic NP operates within the regulatory framework of the U.S. EPA's AQS network and the CASTNET program, which focuses on rural and remote sites. The station's parameter coverage includes criteria pollutants and atmospheric deposition species, providing critical data for assessing ecosystem exposure. Its siting in a national park ensures representativeness of background conditions, while continuous reporting supports trend analysis and policy evaluation for air quality management in protected areas.
Frequently asked questions
Lassen Volcanic NP is located at Manzanita Lake RS within Lassen Volcanic National Park in Shasta County, California, United States.
As a CASTNET site, it measures ozone, sulfur dioxide, nitrogen compounds, particulate matter, and meteorological parameters to assess air quality and atmospheric deposition.
The station is operated by Mactec, Inc. and reports to the U.S. Environmental Protection Agency as part of the CASTNET network.
CASTNET (Clean Air Status and Trends Network) is a national monitoring program under the U.S. EPA that tracks the effects of air pollution on ecosystems. It supports the Clean Air Act by providing data for regulatory compliance and trend analysis.
Air monitoring in national parks helps protect visibility and ecosystem health, as these areas are designated as Class I under the Clean Air Act. Data from such stations informs policies to reduce pollution impacts on sensitive natural resources.
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