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Clean Air Status and Trends Network (CASTNET)

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CASTNET is a national monitoring network established to assess trends in pollutant concentrations, atmospheric deposition, and ecological effects due to changes in air pollutant emissions.

Clean Air Status and Trends Network (CASTNET)

 

Monitoring

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Maps & Charts

Publications

What's New

¿Está interesado en nuestros datos de monitoreo? Lea sobre los conceptos básicos de CASTNET en nuestra hoja informativa. Ahora disponible en español.

In May 2019, researchers from EPA's Office of Air & Radiation and EPA's Office of Research & Development collaborated with the scientific community through NADP's TDEP committee to synthesize the current state of the science related to nitrogen deposition budgets. Read the published paper.

Site Updates:

  • In April 2019, CASTNET closed the site in Howland, Maine (HOW191) after eight years of operation.
  • In May 2019, the CASTNET site in Duke Forest, NC (DUK008) installed an ozone analyzer.
  • In March 2017, CASTNET added a site in Chaco Canyon National Historical Park (CHC432).

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