Keeler Air Monitoring Station, Keeler, California | US EPA AQS Network

Keeler is an air monitoring station located in Keeler, Inyo County, California, United States. Operated by the Great Basin Unified Air Pollution Control District (APCD), it is part of the broader US EPA Air Quality System (AQS) monitoring network, which tracks criteria pollutants and other atmospheric parameters to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station is situated in a remote, arid region of eastern California, near the Owens Lake bed, an area known for significant dust emissions that impact local air quality. The facility collects ambient air samples and reports data to the Great Basin Unified APCD, with the most recent sample date recorded as June 30, 2025. While specific parameters measured are not detailed, typical monitoring at such stations includes particulate matter (PM10, PM2.5), ozone, and meteorological variables. The station's siting is representative of rural desert conditions, contributing to the understanding of regional air pollution transport and dust-related health impacts. Keeler's environmental significance lies in its role within the Great Basin Unified APCD's network, which addresses unique air quality challenges in the region, including dust from Owens Lake and emissions from local industrial activities. The data supports public health protection and regulatory compliance, aiding in the development of effective air quality management strategies for the area.

Keeler Air Monitoring Station operates in the Great Basin region of California, characterized by arid climate, sparse vegetation, and significant dust emissions from dry lake beds like Owens Lake. The station's monitoring helps assess particulate matter levels, which are a primary concern due to windblown dust and potential health effects. Its location in a rural setting provides baseline data for regional air quality, complementing urban monitoring stations and supporting the US EPA's AQS network objectives.