Overview
Lake Tahoe Community College is an air monitoring station in South Lake Tahoe, California, part of the IMPROVE network. Operated by the National Park Service, it provides data on visibility and particulate matter in the Lake Tahoe Basin.
Lake Tahoe Community College is an air monitoring station located at 1275 Meadow Crest Dr, South Lake Tahoe, California, within the United States. It is part of the Interagency Monitoring of Protected Visual Environments (IMPROVE) network, which focuses on assessing visibility impairment and particulate matter composition in protected areas. The station is operated by the National Park Service and is currently operational, with the most recent sample collected on February 27, 2025. The IMPROVE network is a key component of the US EPA's air quality monitoring framework, complementing the Air Quality System (AQS) by providing speciated particulate matter data. This station measures parameters such as PM2.5 mass, light extinction, and chemical speciation, which are critical for understanding regional haze and air pollution sources. The station's location in the Lake Tahoe Basin, a high-altitude environment, makes it representative of background air quality in the Sierra Nevada region. The data from Lake Tahoe Community College supports the visibility protection goals of the Clean Air Act and informs regional air quality management. By contributing to the IMPROVE network, this station helps track long-term trends in visibility and particulate pollution, which is vital for preserving the scenic and ecological value of the Lake Tahoe area. The station's continuous operation ensures reliable data for regulatory assessments and public health research.
Environmental context
The Lake Tahoe Basin is a high-altitude region with unique atmospheric chemistry, influenced by local emissions from tourism and transportation, as well as long-range transport of pollutants. The IMPROVE network's focus on speciation and visibility is particularly relevant here, as haze can impact the region's scenic vistas. The station's siting at a community college provides a representative urban-influenced background, complementing remote sites in the network. Parameter coverage includes PM2.5 mass, ions, and carbon fractions, which are essential for source apportionment and regulatory compliance under the Regional Haze Rule.
Frequently asked questions
The station is located at 1275 Meadow Crest Dr, South Lake Tahoe, California 96150, USA, on the campus of Lake Tahoe Community College.
As part of the IMPROVE network, it measures particulate matter (PM2.5) mass, light extinction, and chemical speciation including ions and carbon fractions to assess visibility and air quality.
The station is operated by the National Park Service under the IMPROVE program, which is a collaborative effort among federal and state agencies.
The Interagency Monitoring of Protected Visual Environments (IMPROVE) network is a long-term program to track visibility and particulate matter in protected areas, supporting the EPA's Regional Haze Rule and the Clean Air Act.
It provides critical data on background air quality in the Sierra Nevada, helping to assess regional haze, source contributions, and compliance with federal air quality standards.
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