What Does NDDN Stand For?

NDDN stands for National Dry Deposition Network US EPA

The National Dry Deposition Network (NDDN) is a program established by the U.S. Environmental Protection Agency (US EPA) to monitor and assess the deposition of atmospheric pollutants. By measuring the concentration and deposition rates of nitrogen, sulfur, and other contaminants, the NDDN supports research and policy efforts aimed at understanding the impacts of dry deposition on ecosystems and public health. The network provides critical data that informs regulatory decisions and helps to track progress in air quality management across the United States.