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Atmospheric Histories (1765-2022) for CFC-11, CFC-12, CFC-113, CCl4, SF6 and N2O (NCEI Accession 0164584)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: February 28, 2026 | Last Modified: 2023-07-21T00:00:00.000+00:00
It has been several years since Bullister (2015) prepared tables and figures of the annual mean tropospheric concentrations in the northern (NH) and southern (SH) hemispheres for the trace gases: CFC-11, CFC-12, CFC-113, carbon tetrachloride (CCl4), sulfur hexafluoride (SF6), and nitrous oxide (N2O). This is the first of periodic updates to the tables and figures compiled following similar methods with updated measurements from the community of scientists who monitor the global distributions of these compounds in the troposphere. The datafile, Tracer_atmospheric_histories_revised_2023_Table1.csv, and Table 1 list the annual mean tropospheric concentrations of CFC-11, CFC-12, CFC-113, CCl4, SF6, and N2O in the northern and southern hemispheres (NH, SH) from 1765.5 to 2022.5. The reported values are the annual (Jan-Dec) mean mole fraction of these gases in dry air. Concentrations are in parts per trillion (ppt) for CFC-11, CFC-12, CFC-113, CCl4, and SF6; and in parts per billion (ppb) for N2O.

Resources

11 resources available

  • Project Metadata

    FILE
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  • NCEI Dataset Landing Page

    PLACEHOLDER/VALUE
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  • Descriptive Information

    PLACEHOLDER/VALUE
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  • HTTPS

    PLACEHOLDER/VALUE
    Download

  • FTP

    PLACEHOLDER/VALUE
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  • http://www.wmo.int/pages/prog/arep/gaw/documents/GGMT2017_T03_Krummel.pdf

    PLACEHOLDER/VALUE
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  • https://doi.org/10.5194/acp-13-2691-2013

    PLACEHOLDER/VALUE
    Download

  • https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/CFC_ATM_Hist2015.html

    FILE
    Visit Page

  • https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system

    PLACEHOLDER/VALUE
    Download

  • GCMD Keyword Forum Page

    PLACEHOLDER/VALUE
    Download

  • NCEI Contact Information

    PLACEHOLDER/VALUE
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0164584 CHLOROFLUOROCARBON (CFC) sulfur hexafluoride (SF6) titrator chemical meteorological VARIOUS CHARTERED VESSELS NOAA Pacific Marine Environmental Laboratory NOAA Pacific Marine Environmental Laboratory Climate Variability and Predictability (CLIVAR) World Ocean Circulation Experiment (WOCE) World-Wide Distribution oceanography DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce CLIVAR > Climate Variability WOCE > World Ocean Circulation Experiment Ocean Carbon and Acidification Data System (OCADS) Project EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CHLOROFLUOROCARBONS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > HYDROCARBONS Atmospheric measurement Data synthesis product Atmospheric Histories (1765-2015) for CFC-11, CFC-12, CFC-113, CCl4, SF6 and N2O CFC_ATM_Hist NDP-095 CFC-11, CFC-12, CFC-113, CCl4 N2O SF6 GEOGRAPHIC REGION > GLOBAL OCEAN World-Wide Distribution

Complete Metadata
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description It has been several years since Bullister (2015) prepared tables and figures of the annual mean tropospheric concentrations in the northern (NH) and southern (SH) hemispheres for the trace gases: CFC-11, CFC-12, CFC-113, carbon tetrachloride (CCl4), sulfur hexafluoride (SF6), and nitrous oxide (N2O). This is the first of periodic updates to the tables and figures compiled following similar methods with updated measurements from the community of scientists who monitor the global distributions of these compounds in the troposphere. The datafile, Tracer_atmospheric_histories_revised_2023_Table1.csv, and Table 1 list the annual mean tropospheric concentrations of CFC-11, CFC-12, CFC-113, CCl4, SF6, and N2O in the northern and southern hemispheres (NH, SH) from 1765.5 to 2022.5. The reported values are the annual (Jan-Dec) mean mole fraction of these gases in dry air. Concentrations are in parts per trillion (ppt) for CFC-11, CFC-12, CFC-113, CCl4, and SF6; and in parts per billion (ppb) for N2O.
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identifier gov.noaa.nodc:0164584
issued 2017-08-01T00:00:00.000+00:00
keyword 
                                            [
  "0164584",
  "CHLOROFLUOROCARBON (CFC)",
  "sulfur hexafluoride (SF6)",
  "titrator",
  "chemical",
  "meteorological",
  "VARIOUS CHARTERED VESSELS",
  "NOAA Pacific Marine Environmental Laboratory",
  "NOAA Pacific Marine Environmental Laboratory",
  "Climate Variability and Predictability (CLIVAR)",
  "World Ocean Circulation Experiment (WOCE)",
  "World-Wide Distribution",
  "oceanography",
  "DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce",
  "CLIVAR > Climate Variability",
  "WOCE > World Ocean Circulation Experiment",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CHLOROFLUOROCARBONS",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > DISSOLVED GASES",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > HYDROCARBONS",
  "Atmospheric measurement",
  "Data synthesis product",
  "Atmospheric Histories (1765-2015) for CFC-11, CFC-12, CFC-113, CCl4, SF6 and N2O",
  "CFC_ATM_Hist",
  "NDP-095",
  "CFC-11, CFC-12, CFC-113, CCl4",
  "N2O",
  "SF6",
  "GEOGRAPHIC REGION > GLOBAL OCEAN",
  "World-Wide Distribution"
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landingPage https://www.ncei.noaa.gov/contact
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2023-07-21T00:00:00.000+00:00
publisher 
                                            {
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
                                            [
  "http://www.wmo.int/pages/prog/arep/gaw/documents/GGMT2017_T03_Krummel.pdf",
  "https://doi.org/10.5194/acp-13-2691-2013",
  "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/CFC_ATM_Hist2015.html",
  "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system"
]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1765-01-01T00:00:00+00:00/2022-06-01T00:00:00+00:00
title Atmospheric Histories (1765-2022) for CFC-11, CFC-12, CFC-113, CCl4, SF6 and N2O (NCEI Accession 0164584)

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