Vermillion DOT Air Monitoring Station, Clay County, South Dakota | USA Environmental Monitoring

Vermillion DOT is an air monitoring station located at 1005 N Crawford Rd in Clay County, South Dakota, United States. Operated by the South Dakota Department of Agriculture and Natural Resources, it is part of the national ambient air quality monitoring network. The station provides data for assessing air quality in the region, supporting compliance with the Clean Air Act. The station operates under the US EPA Air Quality System (AQS) framework, which sets standards for criteria pollutants such as ozone, particulate matter, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead. Monitoring stations like Vermillion DOT typically measure a subset of these pollutants, with data reported regularly to ensure public health protection. The last sample date recorded is June 30, 2025, indicating ongoing operations. Environmental monitoring in South Dakota is crucial for tracking air quality in agricultural and rural areas, where sources like farming activities and transportation can impact local air quality. The data from Vermillion DOT helps inform regulatory decisions and public health advisories, contributing to the broader goal of maintaining clean air standards across the state.

The station's location in Clay County, South Dakota, places it in a predominantly agricultural region with potential air quality impacts from farming operations, including dust and chemical applications. Monitoring criteria pollutants here helps assess compliance with National Ambient Air Quality Standards (NAAQS) and supports the EPA's AQS network. The station's siting is representative of rural background conditions, providing valuable data for regional air quality modeling.