Table 2 Measured values used for Atmospheric compensation.

From: Mapping Refrigerant Gases in the New York City Skyline

  Difluorethane Ammonia Chlorodifluoromethane
Timestamp 04/13 15:22 EST 04/08 09:11 EST 04/08 09:11 EST
Water vapor 1.47 g/cm3 1.50 g/cm3 1.50 g/cm3
Ozone 0.00026 g/cm3 0.00064 g/cm3 0.00064 g/cm3
Carbon Dioxide 400 ppmv 400 ppmv 400 ppmv