Trace inorganic species measured above the snowpack in Barrow, AK

1-hr averages of ambient chlorine-Cl2, dibromine-Br2, hypobromous acid-HOBr, hypobromite-BrO and ozone-O3 concentrations, measured at ~1 m above snowpack, near Barrow, Alaska in March 2012. Inorganic halogen concentration measurements were conducted using a chemical ionization mass spectrometer. O3 concentration measurements were performed using a 2B technologies O3 monitor.