Sulfur Hexafluoride

Starting date:
1-11-2008

Status:
Running

Instrumentation and calibration:
Sulfur Hexafluoride is measured by using a GC-ECD (Agilent 6890N); separation is performed on a double column system (precolumn/backflush and analytical column, both Hayesep Q), isothemrically. Each run is 15 minute long. Each ambient air sample is bracketed with calibration runs. The working standards are based on NOAA2006 scale.

Project affiliation (s)
Present: AGAGE
Past: SOGE, SOGE-A

Related research programmes

  • Tropospheric background condition
  • Greenhouse gases
  • Long-range transport
  • Why is this research important?
    The anthropogenic gas sulfur Hexafluoride (SF6) have been discovered recently to be accumulating at rapid rates in the Earth's atmosphere. Although SF6 presently makes an insignificant contribution to the atmospheric greenhouse effect, it has estimated a global warming potential many thousands of times greater than CO2. The SF6 high global warming potential are a consequence of its relatively long atmospheric lifetimes that exceed 3000 years, due to the chemical inertness, and its high efficiency as absorber of infrared radiation.

    Quick look


    Time series of SF6 at ICO-OV (blue dots) and measurement reproducibility (red dots) calculated by the standard deviation of the recurrent reference gas mixture analysis on a daily basis.


    Organization (s):
    Urbino University
    Dipartimento di Scienza di Base e Fondamenti
    piazza Rinascimento 6, I-61029, Urbino

    ISAC-CNR
    Via Gobetti 101, I-40129, Bologna
    www.isac.cnr.it

    Contact persons:
    Prof. Michela Maione
    e-mail: michela [dot] maioneatuniurb [dot] it
    phone: +39 0722 303316

    Dr. Jgor Arduini
    e-mail: jgor [dot] arduiniatuniurb [dot] it
    phone: +39 0722 303316

    Dr. Paolo Bonasoni
    e-mail: p [dot] bonasoniatisac [dot] cnr [dot] it,
    phone: +39 051 6399590

    Where can I find the data?
    World Data Centre for Greenhouse Gases (WDCGG)
    or
    by direct request to: michela [dot] maioneatuniurb [dot] it, jgor [dot] arduiniatuniurb [dot] it