* Aircraft: ALK4 BCPI C2H6 C3H8 CH2O CO H2O MACR NO2 NO OCPI PRPE RCHO SO2 SO4 SOAP 
* Anthro: ALD2 ALK4 ALK6 BCPI BCPO BENZ C2H2 C2H4 C2H6 C3H8 CH2O CO DST1 EOH HCl HCOOH MEK MOH NH3 NO OCPI OCPO pFe PRPE SO2 SO4 SOAP TOLU XYLE 
* BioBurn: ACET ACR ACTA ALD2 ALK4 BCPI BCPO BENZ C2H2 C2H4 C2H6 C3H8 C4H6 CH2O CO EOH FURA GLYX HCOOH ISOP MEK MGLY MOH MTPA MVK NH3 NO OCPI OCPO PHEN PRPE RCHO SO2 SOAP STYR TOLU XYLE 
* Biogenic: ACET ALD2 C2H4 EOH ISOP LIMO MOH MTPA MTPO PRPE SOAP SOAS 
* Fert: 
* Lightning: NO 
* Natural: BrSALA BrSALC DST1 DST2 DST3 DST4 NH3 SALA SALAAL SALACL SALC SALCAL SALCCL 
* Ocean: ACET ALD2 CH2Br2 CH2I2 CH2IBr CH2ICl CH3I CHBr3 DMS ETNO3 MENO3 MOH 
* PlantDecay: ALD2 EOH 
* Seabirds: NH3 
* Ship: ALK4 ALK6 BCPI BCPO BENZ C2H2 C2H4 C2H6 C3H8 CO HCOOH HNO3 NH3 NO2 NO O3 OCPI OCPO pFe PRPE SO2 SO4 SOAP TOLU XYLE 
* Soil: NO 
* Total: ACET ACR ACTA ALD2 ALK4 ALK6 BCPI BCPO BENZ C2H2 C2H4 C2H6 C3H8 C4H6 CH2O CO DST1 EOH FURA GLYX HCl HCOOH ISOP MACR MEK MGLY MOH MTPA MTPO MVK NH3 NO2 NO OCPI OCPO pFe PHEN PRPE RCHO SO2 SO4 SOAP STYR TOLU XYLE 
* VolcDegas: SO2 
* VolcErupt: