| Class | Subject | Notes |
|
| gphy | air | Bulk property of the atmosphere |
| gphy | sea | Bulk property of the sea/ocean |
| gphy | air molecules | Property of air molecules, excluding aerosols |
| gphy | cloud | Atmospheric cloud property |
| gphy | aerosol | Solid or liquid particles suspended in the atmosphere |
| gphy | sulfate aerosol | |
| gphy | soot | |
| gphy | Br | Bromine atoms |
| gphy | BrO | Bromine monoxide molecules |
| gphy | C2H3Cl3 | methyl chloroform molecules |
| gphy | C2H6 | ethane molecules |
| gphy | CCl4 | Carbon tetrachloride molecules |
| gphy | CFC-11 | trichlorofluoromethane, CFCl3 |
| gphy | CFC-111 | pentachlorofluoroethane, C2FCl5 |
| gphy | CFC-112 | tetrachlorodifluoroethane, C2F2Cl4 |
| gphy | CFC-113 | trichlorotrifluoroethane, C2F3Cl3 |
| gphy | CFC-114 | dichlorotetrafluoroethane, C2F4Cl2 |
| gphy | CFC-115 | monochloropentafluoroethane, C2F5Cl |
| gphy | CFC-12 | dichlorodifluoromethane, CF2Cl2 |
| gphy | CFC-13 | chlorotrifluoromethane, CF3Cl |
| gphy | CH3Cl | methyl chloride |
| gphy | CH4 | Methane molecules |
| gphy | CHCl3 | Chloroform molecules |
| gphy | Cl | Chlorine atoms |
| gphy | ClO | Chlorine monoxide molecules |
| gphy | ClNO3 | Chlorine nitrate molecules |
| gphy | CO | Carbon monoxide molecules |
| gphy | CO2 | Carbon dioxide molecules |
| gphy | F | Fluorine atoms |
| gphy | H2(16)O | water isotope |
| gphy | H2(17)O | Water isotope |
| gphy | H2(18)O | Water isotope |
| gphy | H2O | Water molecules |
| gphy | H2O ice | Water, solid phase |
| gphy | H2O liquid | Water, liquid phase |
| gphy | H2O vapor | Water, vapor phase |
| gphy | H2SO4 | Sulfuric acid |
| gphy | HCFC-22 | monochlorodifluoromethane, CHF2Cl |
| gphy | HCl | Hydrogen chloride molecules |
| gphy | HCN | Hydrocyanic acid |
| gphy | HDO | water isotope |
| gphy | HF | Hydrogen fluoride molecules |
| gphy | HNO3 | Nitric acid |
| gphy | HOCl | Hypochlorous acid |
| gphy | N2O | Nitrous oxide molecules |
| gphy | NO | Nitric oxide molecules |
| gphy | NO2 | Nitrogen dioxide molecules |
| gphy | NO3 | Nitrate molecules |
| gphy | NOx | Nitrogen oxides |
| gphy | NOy | Reactive nitrogen oxides |
| gphy | O3 | Ozone molecules. |
| gphy | OClO | Chlorine dioxide molecules |
| gphy | SO2 | Sulfur dioxide molecules |
| gphy | SO4 | Sulfate molecules |