Ursuline North Air Monitoring Station, Crystal City, Missouri | United States

Ursuline North is an air monitoring station located at 210 Glennon Heights Road in Crystal City, Missouri, within Jefferson County. The station is part of the broader US EPA Air Quality System (AQS) network and is operated under the Missouri Laboratory Services Program. It serves as a fixed-site monitor for ambient air quality in a suburban/rural context, contributing to the national assessment of criteria pollutants. The station's last reported sample date is January 30, 2023, indicating ongoing data collection. While specific parameters measured are not detailed, typical air monitoring stations in Missouri track pollutants such as ozone, particulate matter (PM2.5 and PM10), sulfur dioxide, nitrogen dioxide, carbon monoxide, and lead, in accordance with EPA National Ambient Air Quality Standards (NAAQS). The station's siting follows EPA guidelines for representativeness, ensuring data reflects local air quality conditions. Ursuline North plays a role in supporting public health and environmental compliance in the region. Its data helps inform local air quality indices and regulatory decisions. The station's location near Crystal City, a small community along the Mississippi River, provides valuable monitoring coverage for an area that may be influenced by industrial and transportation emissions.

The station is situated in Jefferson County, Missouri, a region with a mix of agricultural, industrial, and residential land uses. Air quality monitoring here is important due to potential emissions from nearby industrial facilities and transportation corridors along the Mississippi River. The station's data contributes to the EPA's AQS network, supporting compliance with NAAQS and providing information for public health advisories. Typical monitored parameters include criteria pollutants and meteorological data, with siting designed to capture representative ambient conditions.