Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Clean Air Status and Trends Network (CASTNET) Weekly Ambient Concentrations

    Metadata Updated: May 2, 2021

    Weekly average air concentrations from CASTNET filter pack data in standard Tuesday 9:00 AM - Tuesday 8:00 AM weeks. The data are collected using an open face, 3-stage filter pack. Data include aerosol concentrations of sulfate, nitrate, ammonium, calcium, sodium, potassium, magnesium and chloride and gaseous concentrations of sulfur dioxide and nitric acid. The QAPP and associated SOPs can be found on the CASTNET website: www.epa.gov/castnet/documents-reports. Site location information is included with this dataset. Citation information for this dataset can be found in the EDG's Metadata Reference Information section and Data.gov's References section.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date May 2, 2021

    Metadata Source

    Harvested from EPA ScienceHub

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date May 2, 2021
    Publisher U.S. Environmental Protection Agency
    Maintainer
    Identifier https://doi.org/10.23719/1518535
    Data Last Modified 2021-02-11
    Public Access Level public
    Bureau Code 020:00
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Harvest Object Id 716cafa8-91d8-4aed-aef3-bf90cc8c86e3
    Harvest Source Id 04b59eaf-ae53-4066-93db-80f2ed0df446
    Harvest Source Title EPA ScienceHub
    License https://pasteur.epa.gov/license/sciencehub-license.html
    Program Code 020:000
    Publisher Hierarchy U.S. Government > U.S. Environmental Protection Agency
    Source Datajson Identifier True
    Source Hash 9134adbc51358275488b8520dc4b341f912e7d6c
    Source Schema Version 1.1

    Didn't find what you're looking for? Suggest a dataset here.