Amanda Elem Air Monitoring Station, Middletown, Ohio | United States

Amanda Elem is an air monitoring station located at 1200 Oxford State Road in Middletown, Butler County, Ohio, United States. The station is part of the national air quality monitoring network and is operated by the Hamilton County Department of Environmental Services. It plays a role in tracking criteria pollutants and supporting compliance with the Clean Air Act. The station operates under the US EPA's Air Quality System (AQS) framework, which sets standards for monitoring methods, siting, and data reporting. Typical air monitoring stations in Ohio measure pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station's last reported sample date is September 22, 2025, indicating ongoing data collection. Environmental monitoring in this region supports public health by detecting pollution episodes and informing regulatory actions. The station's location in a mixed urban-industrial area helps assess exposure for nearby communities. Continuous operation ensures long-term trend analysis for air quality management in southwestern Ohio.

The Middletown area lies within the Miami Valley region, which has a history of industrial activity including steel, paper, and chemical manufacturing. Air monitoring stations like Amanda Elem are critical for tracking ozone and particulate matter, which can be elevated due to local emissions and regional transport. The station's siting representativeness is important for capturing population exposure and supporting state implementation plans for National Ambient Air Quality Standards (NAAQS).