The mole fraction of various persistant organic pollutants (POPs).
(Note that for these definitions the GAW vocabulary redirects to the CF standard name table. For the full reference, please visit: http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/22/cf-standard-name-table.html)
Specific Measurements:
C6H6Cl6 (1,2,3,4,5,6-hexachlorocyclohexane, alpha-lindane, alpha-HCH), in air (mole_fraction_of_alpha_hexachlorocyclohexane_in_air): Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y.
Radiometric terms for the IASOA data vocabulary are taken from the Global Atmosphere Watch Station Information System (GAWSIS). . For the full reference, please visit: http://gaw.empa.ch/gawsis/display.asp.