Overview
Charlestown State Park Air Monitoring Station in Indiana, USA, operated by the Indiana Department of Environmental Management, monitors ambient air quality under the US EPA AQS network.
Charlestown State Park Air Monitoring Station is located at 12500 St. Rd. 62 within Charlestown State Park in Clark County, Indiana, near the Indiana Armory. This station is part of the US EPA Air Quality System (AQS) network, which collects ambient air quality data across the United States to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station is operated by the Indiana Department of Environmental Management's Office of Air Quality. The station provides continuous monitoring of criteria pollutants and other atmospheric parameters, contributing to the national database used for regulatory assessments and public health advisories. As an AQS site, it follows standardized siting and measurement protocols to ensure data representativeness and comparability. The station's last reported sample date is September 30, 2025, indicating ongoing operations. Located in a state park, this station helps characterize background air quality in a mixed rural-recreational setting, complementing urban and industrial monitoring sites in the region. Its data supports Indiana's State Implementation Plan for air quality management and informs local environmental health decisions. The station's role is vital for tracking long-term trends and assessing the effectiveness of emission reduction strategies.
Environmental context
The station is situated in a state park environment, which provides a representative background air quality measurement away from major urban or industrial sources. This siting is critical for understanding regional air pollution transport and natural background levels. The monitoring data supports compliance with the US EPA's NAAQS for criteria pollutants such as ozone, particulate matter, and nitrogen dioxide. The station's location in southern Indiana also contributes to the broader Midwestern air quality monitoring network, helping to assess cross-state pollution impacts.
Frequently asked questions
The station is located at 12500 St. Rd. 62 within Charlestown State Park in Clark County, Indiana, near the Indiana Armory.
As part of the US EPA AQS network, the station monitors criteria pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen oxides, following standardized methods.
The station is operated by the Indiana Department of Environmental Management's Office of Air Quality.
The station operates under the US Clean Air Act and the National Ambient Air Quality Standards (NAAQS), with data reported to the EPA's Air Quality System (AQS).
State park monitoring stations provide background air quality data, helping to distinguish natural from anthropogenic pollution and assess regional air quality trends.
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