Ukiah-Library Air Monitoring Station, Ukiah, California | Environmental Monitoring

Ukiah-Library is an air monitoring station located at 105 N Main St, Ukiah, California, within Mendocino County. Operated by the California Air Resources Board, this station is part of the state's extensive air quality monitoring network, which supports compliance with the US EPA's Air Quality System (AQS) standards. The station collects ambient air quality data, typically measuring criteria pollutants such as ozone, particulate matter, and nitrogen dioxide, in accordance with federal and state regulations. As part of the California Air Resources Board network, it contributes to regional air quality assessments and public health advisories. Environmental monitoring at this site helps track air quality trends in Ukiah, a city in Northern California's wine country. The data supports local air quality management and informs residents about pollution levels, contributing to broader efforts to protect public health and the environment.

Ukiah is located in the inland valleys of Mendocino County, where air quality can be affected by wildfires, agricultural activities, and transportation emissions. The Ukiah-Library station monitors criteria pollutants to assess compliance with National Ambient Air Quality Standards (NAAQS). Its urban siting provides representative data for population exposure, supporting the California Air Resources Board's regulatory framework and public reporting.