Indpls- W. 18th St./ Ernie Pyle School 90 Air Monitoring Station, Indianapolis, Indiana

Indpls- W. 18th St./ Ernie Pyle School 90 is an air monitoring station located at 3351 W. 18th Street in Indianapolis, Indiana. Operated by the Indiana Department of Environmental Management's Office of Air Quality, this station is part of the national ambient air quality monitoring network. It contributes to the US EPA Air Quality System (AQS), which tracks criteria pollutants and other atmospheric parameters to assess compliance with the Clean Air Act. The station's last reported sample date was December 31, 2024, indicating ongoing data collection. As a regulatory monitoring site, it likely measures pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide. The station's location in an urban residential area provides representative data for population exposure assessment. The Indiana Department of Environmental Management operates a network of such stations across the state to support air quality management and public health protection. This monitoring station plays a key role in characterizing air quality in the Indianapolis metropolitan area. Data from this site helps inform local air quality alerts, regulatory compliance determinations, and long-term trend analysis. The station's continued operation supports the community's understanding of environmental conditions and contributes to the broader national effort to maintain healthy air quality standards.

The station is situated in an urban residential neighborhood in Indianapolis, an area influenced by transportation emissions, industrial activity, and seasonal meteorological patterns. Air quality monitoring in this context focuses on criteria pollutants like ozone and particulate matter, which are regulated under the US EPA National Ambient Air Quality Standards. The station's siting is designed to be representative of population exposure, supporting health-based assessments and regulatory compliance. Its data contributes to the state's air quality management program and the national AQS database.