Columbia Air Monitoring Station, Knowlton Township, New Jersey | US EPA AQS Network

Columbia is an air monitoring station located in Knowlton Township, Warren County, New Jersey, United States. Operated by the New Jersey State Department of Environmental Protection, it is part of the national network that supports the US EPA Air Quality System (AQS). The station contributes to the assessment of ambient air quality in the region, providing data that helps inform regulatory decisions and public health advisories. The station operates under the regulatory framework of the Clean Air Act and the National Ambient Air Quality Standards (NAAQS). As part of the state's monitoring network, it typically measures criteria pollutants such as ozone, particulate matter, and nitrogen dioxide, though specific parameters are not detailed. The station's location in a rural area of New Jersey provides representative background air quality data for the region. Environmental monitoring at Columbia supports the protection of public health and the environment by tracking pollutant levels and trends. The data collected is used for compliance reporting, air quality forecasting, and research. This station plays a role in the broader network that ensures air quality standards are met in New Jersey and contributes to the national understanding of air pollution patterns.

The station is situated in a rural area of Warren County, New Jersey, near the Delaware River. This location provides background air quality data that is representative of the region, away from major urban emission sources. The monitoring helps assess the impact of regional transport of pollutants and supports the state's compliance with the National Ambient Air Quality Standards (NAAQS).