Carville Air Monitoring Station, St. Gabriel, Louisiana | US EPA AQS Network

Carville is an operational air monitoring station located at 5445 Point Clair Rd. in St. Gabriel, Louisiana, within Iberville Parish. Operated by the State of Louisiana, this station is part of the broader US EPA Air Quality System (AQS) network, which monitors ambient air quality across the United States to ensure compliance with National Ambient Air Quality Standards (NAAQS). The station's location in an industrial region of Louisiana positions it to capture emissions from nearby petrochemical and manufacturing facilities. As a fixed-site monitoring station, Carville typically measures criteria pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead. The station may also track meteorological parameters like wind speed and direction to support data interpretation. The reporting agency, the State of Louisiana, submits data to the EPA's AQS database, ensuring transparency and public access to air quality information. The station plays a critical role in protecting public health and the environment in the Mississippi River Corridor, a region with significant industrial activity. Continuous monitoring helps identify pollution trends, support regulatory actions, and inform community awareness. Carville's data contributes to regional air quality assessments and helps Louisiana meet federal air quality standards.

The Carville air monitoring station operates in the Mississippi River industrial corridor, an area with dense petrochemical, refining, and manufacturing facilities. This context necessitates robust monitoring of criteria pollutants and hazardous air pollutants to protect nearby communities and ecosystems. The station's siting is representative of industrial-urban fringe environments, and its data supports the EPA's regulatory framework under the Clean Air Act. Continuous reporting ensures that any exceedances of NAAQS are promptly identified and addressed.