Observation Sites
Yellow markers indicate discontinued sites
Park Falls, Wisconsin, United States [LEF]
Location
- Country: United States
- Latitude: 45.9451° North
- Longitude: 90.2732° West
- Elevation: 472.00 masl
- Time Zone: Local Standard Time + 6.0 hour(s) = UTC
Data
Cooperating Agencies
- Wisconsin Educational Communications Board & US Forest Service
- MBMAS
- USDA Forest Service Forestry Sciences Laboratory
USDA Forest Service
GML Projects at Park Falls, Wisconsin
| Parameter | Formula | First Sample Date | Status |
|---|---|---|---|
| Carbon Dioxide | CO2 | 1994-11-29 | Ongoing |
| Carbon Dioxide | CO2 | 2006-10-05 | Ongoing |
| Methane | CH4 | 2006-10-05 | Ongoing |
| Methane | CH4 | 1994-11-29 | Ongoing |
| Carbon Monoxide | CO | 1994-11-29 | Ongoing |
| Carbon Monoxide | CO | 2006-10-05 | Ongoing |
| Molecular Hydrogen | H2 | 1994-11-29 | Ongoing |
| Molecular Hydrogen | H2 | 2006-10-05 | Ongoing |
| Nitrous Oxide | N2O | 1995-12-07 | Ongoing |
| Nitrous Oxide | N2O | 2006-10-05 | Ongoing |
| Sulfur Hexafluoride | SF6 | 2006-10-05 | Ongoing |
| Sulfur Hexafluoride | SF6 | 2018-01-24 | Terminated - 2018-01-24 |
| Sulfur Hexafluoride | SF6 | 1995-12-07 | Ongoing |
| Sulfur Hexafluoride | SF6 | 2015-01-13 | Ongoing |
| Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 2006-10-07 | Ongoing |
| Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 1994-11-29 | Ongoing |
| Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 1994-11-29 | Ongoing |
| Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 2006-10-07 | Ongoing |
| Carbon-13/Carbon-12 in Methane | d13C (CH4) | 2012-05-30 | Terminated - 2012-05-30 |
| Carbon-14/Carbon in Carbon Dioxide | D14C (CO2) | 2009-12-24 | Terminated - 2021-04-19 |
| D/H in Methane | dD (CH4) | 2005-04-13 | Terminated - 2008-05-14 |
| HFC-134a | CH2FCF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-134a | CH2FCF3 | 2006-10-07 | Ongoing |
| HCFC-22 | CHF2Cl | 2006-10-07 | Ongoing |
| HCFC-22 | CHF2Cl | 2018-01-24 | Terminated - 2018-01-24 |
| CFC-12 | CCl2F2 | 2018-01-24 | Terminated - 2018-01-24 |
| CFC-12 | CCl2F2 | 2006-10-07 | Ongoing |
| Methyl Chloride | CH3Cl | 2005-11-23 | Terminated - 2018-05-23 |
| Methyl Chloride | CH3Cl | 2006-10-07 | Ongoing |
| Methyl Chloride | CH3Cl | 2018-01-24 | Terminated - 2018-01-24 |
| CFC-114 | CFC-114 | 2006-10-07 | Ongoing |
| CFC-114 | CFC-114 | 2018-01-24 | Terminated - 2018-01-24 |
| HCFC-142b | CH3CF2Cl | 2018-01-24 | Terminated - 2018-01-24 |
| HCFC-142b | CH3CF2Cl | 2006-10-07 | Ongoing |
| Halon-1211 | CBrClF2 | 2018-01-24 | Terminated - 2018-01-24 |
| Halon-1211 | CBrClF2 | 2006-10-07 | Ongoing |
| Methyl Bromide | CH3Br | 2006-10-07 | Ongoing |
| Methyl Bromide | CH3Br | 2018-01-24 | Terminated - 2018-01-24 |
| CFC-11 | CCl3F (ion 101) | 2006-10-07 | Terminated - 2015-11-15 |
| CFC-11 | CCl3F (ion 103) | 2010-09-01 | Ongoing |
| CFC-11 | CCl3F (ion 103) | 2018-01-24 | Terminated - 2018-01-24 |
| HCFC-141b | CH3CCl2F | 2018-01-24 | Terminated - 2018-01-24 |
| HCFC-141b | CH3CCl2F | 2006-10-07 | Ongoing |
| Methyl Iodide | CH3I | 2018-01-24 | Terminated - 2018-01-24 |
| Methyl Iodide | CH3I | 2006-10-07 | Ongoing |
| CFC-113 | CCl2FCClF2 | 2006-10-07 | Ongoing |
| CFC-113 | CCl2FCClF2 | 2018-01-24 | Terminated - 2018-01-24 |
| Dichloromethane | CH2Cl2 | 2018-01-24 | Terminated - 2018-01-24 |
| Dichloromethane | CH2Cl2 | 2006-10-07 | Ongoing |
| Chloroform | CHCl3 | 2018-01-24 | Terminated - 2018-01-24 |
| Chloroform | CHCl3 | 2006-10-07 | Ongoing |
| Methyl Chloroform (97) | CH3CCl3 | 2018-01-24 | Terminated - 2018-01-24 |
| Methyl Chloroform (97) | CH3CCl3 | 2006-10-07 | Ongoing |
| Methyl Chloroform (99) | CH3CCl3 | 2010-09-01 | Terminated - 2010-12-21 |
| Carbon Tetrachloride | CCl4 | 2006-10-07 | Ongoing |
| Carbon Tetrachloride | CCl4 | 2018-01-24 | Terminated - 2018-01-24 |
| Methylene Bromide | CH2Br2 | 2006-10-07 | Ongoing |
| Methylene Bromide | CH2Br2 | 2018-01-24 | Terminated - 2018-01-24 |
| Perchloroethylene (PCE) | C2Cl4 | 2018-01-24 | Terminated - 2018-01-24 |
| Perchloroethylene (PCE) | C2Cl4 | 2006-10-07 | Ongoing |
| Bromoform | CHBr3 | 2006-10-07 | Ongoing |
| Bromoform | CHBr3 | 2018-01-24 | Terminated - 2018-01-24 |
| Benzene | C6H6 | 2007-01-03 | Terminated - 2018-05-23 |
| Benzene | C6H6 | 2006-10-07 | Ongoing |
| Benzene | C6H6 | 2018-01-24 | Terminated - 2018-01-24 |
| Carbonyl Sulfide | COS | 2006-10-07 | Ongoing |
| Carbonyl Sulfide | COS | 2018-01-24 | Terminated - 2018-01-24 |
| HCFC-21 | CHCl2F | 2015-09-24 | Ongoing |
| HCFC-21 | CHCl2F | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-152a | CH3CHF2 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-152a | CH3CHF2 | 2006-10-07 | Ongoing |
| HCFC-124 | CHClFCF3 | 2006-10-07 | Ongoing |
| HCFC-124 | CHClFCF3 | 2018-01-24 | Terminated - 2018-01-24 |
| Methylbenzene | C7H8 | 2015-01-13 | Ongoing |
| Methylbenzene | C7H8 | 2007-01-03 | Terminated - 2018-05-23 |
| Carbon Disulfide | CS2 | 2018-01-24 | Terminated - 2018-01-24 |
| Carbon Disulfide | CS2 | 2006-10-07 | Ongoing |
| Ethane | C2H6 | 2005-11-23 | Terminated - 2018-05-23 |
| Ethane | C2H6 | 2015-01-13 | Ongoing |
| Ethane | C2H6 | 2018-01-24 | Terminated - 2018-01-24 |
| Ethylene | C2H4 | 2015-01-13 | Ongoing |
| Ethylene | C2H4 | 2018-01-24 | Terminated - 2018-01-24 |
| Ethylene | C2H4 | 2005-11-23 | Terminated - 2018-05-23 |
| Propane | C3H8 | 2018-01-24 | Terminated - 2018-01-24 |
| Propane | C3H8 | 2007-05-16 | Ongoing |
| Propane | C3H8 | 2005-11-23 | Terminated - 2018-05-23 |
| Propylene | C3H6 | 2005-11-23 | Terminated - 2018-05-23 |
| Propylene | C3H6 | 2018-01-24 | Terminated - 2018-01-24 |
| Propylene | C3H6 | 2015-01-13 | Ongoing |
| Isobutane | i-C4H10 | 2018-01-24 | Terminated - 2018-01-24 |
| Isobutane | i-C4H10 | 2015-01-13 | Ongoing |
| Isobutane | i-C4H10 | 2005-11-23 | Terminated - 2018-05-23 |
| n-Butane | n-C4H10 | 2018-01-24 | Terminated - 2018-01-24 |
| n-Butane | n-C4H10 | 2005-11-23 | Terminated - 2018-05-23 |
| n-Butane | n-C4H10 | 2007-05-16 | Ongoing |
| isopentane | i-C5H12 | 2007-05-16 | Ongoing |
| isopentane | i-C5H12 | 2018-01-24 | Terminated - 2018-01-24 |
| isopentane | i-C5H12 | 2005-11-23 | Terminated - 2018-05-23 |
| n-Pentane | n-C5H12 | 2018-01-24 | Terminated - 2018-01-24 |
| n-Pentane | n-C5H12 | 2007-05-16 | Ongoing |
| n-Pentane | n-C5H12 | 2005-11-23 | Terminated - 2018-05-23 |
| n-Hexane | n-C6H14 | 2005-11-23 | Terminated - 2018-05-23 |
| n-Hexane | n-C6H14 | 2018-01-24 | Terminated - 2018-01-24 |
| n-Hexane | n-C6H14 | 2015-01-13 | Ongoing |
| isoprene | C5H8 | 2007-01-03 | Terminated - 2018-05-23 |
| Halon-1301 | CF3Br | 2018-01-24 | Terminated - 2018-01-24 |
| Halon-1301 | CF3Br | 2007-05-16 | Ongoing |
| Halon-2402 | CBrF2CBrF2 | 2007-05-16 | Ongoing |
| Halon-2402 | CBrF2CBrF2 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-143a | CH3CF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-143a | CH3CF3 | 2007-05-16 | Ongoing |
| HFC-227ea | CF3CHFCF3 | 2007-05-16 | Ongoing |
| HFC-227ea | CF3CHFCF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-365mfc | CH3CF2CH2CF3 | 2007-05-16 | Ongoing |
| HFC-365mfc | CH3CF2CH2CF3 | 2018-01-24 | Terminated - 2018-01-24 |
| CFC-115 | CClF2CF3 | 2007-05-16 | Ongoing |
| CFC-115 | CClF2CF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-125 | CHF2CF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-125 | CHF2CF3 | 2007-05-16 | Ongoing |
| CFC-13 | CClF3 | 2007-05-16 | Ongoing |
| CFC-13 | CClF3 | 2018-01-24 | Terminated - 2018-01-24 |
| Ethyl Chloride | CH3CH2Cl | 2007-05-16 | Terminated - 2014-08-12 |
| HFC-23 | CHF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-23 | CHF3 | 2007-05-16 | Ongoing |
| PFC-218 | C3F8 | 2007-05-16 | Ongoing |
| PFC-218 | C3F8 | 2018-01-24 | Terminated - 2018-01-24 |
| Acetylene | C2H2 | 2007-03-14 | Terminated - 2018-05-23 |
| Acetylene | C2H2 | 2007-05-16 | Ongoing |
| Acetylene | C2H2 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-32 | CH2F2 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-32 | CH2F2 | 2009-03-25 | Ongoing |
| HFC-134 | CHF2CHF2 | 2009-03-25 | Ongoing |
| HFC-134 | CHF2CHF2 | 2018-01-24 | Terminated - 2018-01-24 |
| Halon-1011 | CH2BrCl | 2018-01-24 | Terminated - 2018-01-24 |
| Halon-1011 | CH2BrCl | 2015-01-13 | Ongoing |
| Methyl Chloroform (61) | CH3CCl3 | 2013-12-11 | Terminated - 2013-12-20 |
| PFC-14 | CF4 | 2018-01-24 | Terminated - 2018-01-24 |
| PFC-14 | CF4 | 2015-01-13 | Ongoing |
| PFC-116 | CF3CF3 | 2015-01-13 | Ongoing |
| PFC-116 | CF3CF3 | 2018-01-24 | Terminated - 2018-01-24 |
| Trifluoroamine | NF3 | 2015-09-24 | Ongoing |
| Trifluoroamine | NF3 | 2018-01-24 | Terminated - 2018-01-24 |
| Sulfuryl Fluoride | SO2F2 | 2015-09-24 | Ongoing |
| Sulfuryl Fluoride | SO2F2 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-236fa | CF3CH2CF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-236fa | CF3CH2CF3 | 2015-01-13 | Ongoing |
| HCFC-133a | CH2ClCF3 | 2015-01-13 | Ongoing |
| HCFC-133a | CH2ClCF3 | 2018-01-24 | Terminated - 2018-01-24 |
| CFC-112 | CCl3CClF2 | 2018-01-24 | Terminated - 2018-01-24 |
| CFC-112 | CCl3CClF2 | 2015-01-13 | Ongoing |
| Trichloroethylene (TCE) | C2HCl3 | 2015-01-13 | Ongoing |
| Trichloroethylene (TCE) | C2HCl3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFO-1234yf | CH2=CFCF3 | 2016-08-31 | Ongoing |
| HFO-1234yf | CH2=CFCF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HFO-1234zeE | CHF=CHCF3 | 2016-08-31 | Ongoing |
| HFO-1234zeE | CHF=CHCF3 | 2018-01-24 | Terminated - 2018-01-24 |
| ethylene dichloride (1,2 DCE) | CH2ClCH2Cl | 2018-01-24 | Terminated - 2018-01-24 |
| ethylene dichloride (1,2 DCE) | CH2ClCH2Cl | 2017-12-27 | Ongoing |
| HCFC-123 | CHCl2CF3 | 2018-01-24 | Terminated - 2018-01-24 |
| HCFC-123 | CHCl2CF3 | 2017-12-27 | Ongoing |
| Morpholine | C5F11NO | 2017-11-29 | Ongoing |
| Morpholine | C5F11NO | 2018-01-24 | Terminated - 2018-01-24 |
| Perfluorotriethylamine (PFTEA) | (C2F5)3N | 2018-01-24 | Terminated - 2018-01-24 |
| Perfluorotriethylamine (PFTEA) | (C2F5)3N | 2017-11-29 | Ongoing |
| Perfluorotripropylamine (PFTPA) | (C3F7)3N | 2017-11-29 | Ongoing |
| Perfluorotripropylamine (PFTPA) | (C3F7)3N | 2018-01-24 | Terminated - 2018-01-24 |
| HFC-245fa | 2022-06-10 | Ongoing |
| Parameter | Formula | First Sample Date | Status |
|---|---|---|---|
| Carbon Dioxide | CO2 | 1998-04-10 | Ongoing |
| Methane | CH4 | 1998-04-10 | Ongoing |
| Carbon Monoxide | CO | 1998-04-10 | Ongoing |
| Molecular Hydrogen | H2 | 1999-09-02 | Ongoing |
| Nitrous Oxide | N2O | 1999-09-02 | Ongoing |
| Sulfur Hexafluoride | SF6 | 1999-09-02 | Ongoing |
| Sulfur Hexafluoride | SF6 | 2015-10-19 | Ongoing |
| Carbon-13/Carbon-12 in Carbon Dioxide | d13C (CO2) | 2002-08-24 | Ongoing |
| Oxygen-18/Oxygen-16 in Carbon Dioxide | d18O (CO2) | 2002-08-24 | Ongoing |
| Carbon-14/Carbon in Carbon Dioxide | D14C (CO2) | 2005-09-01 | Terminated - 2018-06-11 |
| HFC-134a | CH2FCF3 | 2004-05-18 | Ongoing |
| HCFC-22 | CHF2Cl | 2004-05-18 | Ongoing |
| CFC-12 | CCl2F2 | 2004-05-18 | Ongoing |
| Methyl Chloride | CH3Cl | 2005-09-26 | Terminated - 2006-03-09 |
| Methyl Chloride | CH3Cl | 2004-05-18 | Ongoing |
| CFC-114 | CFC-114 | 2004-05-18 | Ongoing |
| HCFC-142b | CH3CF2Cl | 2004-05-18 | Ongoing |
| Halon-1211 | CBrClF2 | 2004-05-18 | Ongoing |
| Methyl Bromide | CH3Br | 2004-05-18 | Ongoing |
| CFC-11 | CCl3F (ion 101) | 2004-05-18 | Terminated - 2015-11-23 |
| CFC-11 | CCl3F (ion 103) | 2010-09-20 | Ongoing |
| HCFC-141b | CH3CCl2F | 2004-05-18 | Ongoing |
| Methyl Iodide | CH3I | 2004-05-18 | Ongoing |
| CFC-113 | CCl2FCClF2 | 2004-05-18 | Ongoing |
| Dichloromethane | CH2Cl2 | 2004-05-18 | Ongoing |
| Chloroform | CHCl3 | 2004-05-18 | Ongoing |
| Methyl Chloroform (97) | CH3CCl3 | 2004-05-18 | Ongoing |
| Methyl Chloroform (99) | CH3CCl3 | 2010-09-20 | Terminated - 2012-10-15 |
| Carbon Tetrachloride | CCl4 | 2004-05-18 | Ongoing |
| Methylene Bromide | CH2Br2 | 2004-05-18 | Ongoing |
| Perchloroethylene (PCE) | C2Cl4 | 2004-05-18 | Ongoing |
| Bromoform | CHBr3 | 2004-05-18 | Ongoing |
| Benzene | C6H6 | 2004-05-18 | Ongoing |
| Carbonyl Sulfide | COS | 2004-05-18 | Ongoing |
| HCFC-21 | CHCl2F | 2015-10-19 | Ongoing |
| HFC-152a | CH3CHF2 | 2004-05-18 | Ongoing |
| HCFC-124 | CHClFCF3 | 2004-05-18 | Ongoing |
| Methylbenzene | C7H8 | 2007-07-02 | Ongoing |
| Carbon Disulfide | CS2 | 2004-09-23 | Ongoing |
| Ethane | C2H6 | 2005-09-26 | Terminated - 2006-03-09 |
| Ethane | C2H6 | 2015-10-19 | Ongoing |
| Ethylene | C2H4 | 2015-10-19 | Ongoing |
| Ethylene | C2H4 | 2005-09-26 | Terminated - 2006-03-09 |
| Propane | C3H8 | 2007-07-02 | Ongoing |
| Propane | C3H8 | 2005-09-26 | Terminated - 2006-03-09 |
| Propylene | C3H6 | 2015-10-19 | Ongoing |
| Propylene | C3H6 | 2005-09-26 | Terminated - 2006-03-09 |
| Isobutane | i-C4H10 | 2005-09-26 | Terminated - 2006-03-09 |
| Isobutane | i-C4H10 | 2015-10-19 | Ongoing |
| n-Butane | n-C4H10 | 2005-09-26 | Terminated - 2006-03-09 |
| n-Butane | n-C4H10 | 2007-07-02 | Ongoing |
| isopentane | i-C5H12 | 2007-07-02 | Ongoing |
| isopentane | i-C5H12 | 2005-09-26 | Terminated - 2006-03-09 |
| n-Pentane | n-C5H12 | 2005-09-26 | Terminated - 2006-03-09 |
| n-Pentane | n-C5H12 | 2007-07-02 | Ongoing |
| n-Hexane | n-C6H14 | 2005-09-26 | Terminated - 2006-03-09 |
| n-Hexane | n-C6H14 | 2015-10-19 | Ongoing |
| Ambient Pressure | press | 2004-01-17 | Terminated - 2013-05-28 |
| Relative Humidity | rh | 1998-05-14 | Ongoing |
| Halon-1301 | CF3Br | 2007-07-02 | Ongoing |
| Halon-2402 | CBrF2CBrF2 | 2007-07-02 | Ongoing |
| HFC-143a | CH3CF3 | 2007-07-02 | Ongoing |
| HFC-227ea | CF3CHFCF3 | 2007-07-02 | Ongoing |
| HFC-365mfc | CH3CF2CH2CF3 | 2007-07-02 | Ongoing |
| CFC-115 | CClF2CF3 | 2007-07-02 | Ongoing |
| HFC-125 | CHF2CF3 | 2007-07-02 | Ongoing |
| CFC-13 | CClF3 | 2007-07-02 | Ongoing |
| Ethyl Chloride | CH3CH2Cl | 2007-07-02 | Terminated - 2014-08-12 |
| HFC-23 | CHF3 | 2007-07-02 | Ongoing |
| PFC-218 | C3F8 | 2007-11-06 | Ongoing |
| Acetylene | C2H2 | 2007-11-06 | Ongoing |
| HFC-32 | CH2F2 | 2009-04-15 | Ongoing |
| HFC-134 | CHF2CHF2 | 2009-04-15 | Ongoing |
| Halon-1011 | CH2BrCl | 2015-10-19 | Ongoing |
| Methyl Chloroform (61) | CH3CCl3 | 2013-12-18 | Terminated - 2013-12-23 |
| PFC-14 | CF4 | 2015-10-19 | Ongoing |
| PFC-116 | CF3CF3 | 2015-10-19 | Ongoing |
| Trifluoroamine | NF3 | 2015-10-19 | Ongoing |
| Sulfuryl Fluoride | SO2F2 | 2015-10-19 | Ongoing |
| HFC-236fa | CF3CH2CF3 | 2015-10-19 | Ongoing |
| HCFC-133a | CH2ClCF3 | 2015-10-19 | Ongoing |
| CFC-112 | CCl3CClF2 | 2015-10-19 | Ongoing |
| Trichloroethylene (TCE) | C2HCl3 | 2015-10-19 | Ongoing |
| HFO-1234yf | CH2=CFCF3 | 2016-09-05 | Ongoing |
| HFO-1234zeE | CHF=CHCF3 | 2016-09-05 | Ongoing |
| ethylene dichloride (1,2 DCE) | CH2ClCH2Cl | 2018-01-08 | Ongoing |
| HCFC-123 | CHCl2CF3 | 2018-01-08 | Ongoing |
| Morpholine | C5F11NO | 2017-12-09 | Ongoing |
| Perfluorotriethylamine (PFTEA) | (C2F5)3N | 2017-12-09 | Ongoing |
| Perfluorotripropylamine (PFTPA) | (C3F7)3N | 2017-12-09 | Ongoing |
| HFC-245fa | 2022-06-08 | Ongoing |
Carbon Cycle In Situ Tall Tower
| Parameter | Formula | First Sample Date | Status |
|---|---|---|---|
| Carbon Dioxide | CO2 | 2003-08-01 | Ongoing |
| Methane | CH4 | 2010-09-27 | Ongoing |
| Carbon Monoxide | CO | 2009-05-27 | Ongoing |
| Parameter | Formula | First Sample Date | Status |
|---|---|---|---|
| HFC-134a | CH2FCF3 | 1996-10-23 | Ongoing |
| HCFC-22 | CHF2Cl | 1996-10-23 | Ongoing |
| CFC-12 | CCl2F2 | 2010-01-05 | Ongoing |
| Methyl Chloride | CH3Cl | 1996-10-23 | Ongoing |
| HCFC-142b | CH3CF2Cl | 1996-10-23 | Ongoing |
| Halon-1211 | CBrClF2 | 1996-10-23 | Ongoing |
| Methyl Bromide | CH3Br | 1996-10-23 | Ongoing |
| HCFC-141b | CH3CCl2F | 1996-10-23 | Ongoing |
| CFC-113 | CCl2FCClF2 | 1996-10-23 | Ongoing |
| Dichloromethane | CH2Cl2 | 1996-12-04 | Ongoing |
| Perchloroethylene (PCE) | C2Cl4 | 1996-10-23 | Ongoing |
| Carbonyl Sulfide | COS | 2000-03-17 | Ongoing |
| HFC-152a | CH3CHF2 | 2000-08-16 | Ongoing |
| Halon-2402 | CBrF2CBrF2 | 2009-08-13 | Ongoing |
| HFC-227ea | CF3CHFCF3 | 2011-06-22 | Ongoing |
| HFC-365mfc | CH3CF2CH2CF3 | 2009-08-13 | Ongoing |
| Methyl Chloroform | CH3CCl3 | 1996-10-23 | Ongoing |
| CFC-11 | CCl3F | 2010-01-05 | Ongoing |
Trace gases from GGGRN Airborne Flasks