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Mahe Island, Seychelles [SEY]


  • Country: Seychelles Country Flag
  • Latitude: 4.6824° South
  • Longitude: 55.5325° East
  • Elevation: 2.00 masl
  • Time Zone: Local Standard Time + -4.0 hour(s) = UTC


Cooperating Agencies

Sampling site 1 (southeast of Mahe, refer to map)The site is situated at the southern part of the runway of the international airport. It is just approx. two meters from the sea. It is a flat and forms part of the drudged land on which the airport has been constructed. There is no vegetation.Sampling site 2 (northwest of Mahe, refer to map)The site is situated on a built swimming pool of the Sunset Hotel. It isabove the sea on a rocky environment.

GMD Projects at Mahe Island

Carbon Cycle Surface Flasks

Parameter Formula First Sample Date Status
Carbon Dioxide CO2 1980-01-15 Ongoing
Methane CH4 1983-05-12 Ongoing
Carbon Monoxide CO 1990-11-16 Ongoing
Molecular Hydrogen H2 1990-11-16 Ongoing
Nitrous Oxide N2O 1997-06-13 Ongoing
Sulfur Hexafluoride SF6 1997-06-13 Ongoing
Carbon-13/Carbon-12 in Carbon Dioxide d13C (CO2) 1990-10-09 Ongoing
Oxygen-18/Oxygen-16 in Carbon Dioxide d18O (CO2) 1990-10-09 Ongoing
Methyl Chloride CH3Cl 2005-02-11 Ongoing
Benzene C6H6 2006-10-11 Ongoing
toluene C7H8 2006-10-11 Ongoing
ethane C2H6 2005-02-11 Ongoing
ethene C2H4 2005-02-11 Ongoing
propane C3H8 2005-02-11 Ongoing
propene C3H6 2005-02-11 Ongoing
i-butane i-C4H10 2005-02-11 Ongoing
n-butane n-C4H10 2005-02-11 Ongoing
i-pentane i-C5H12 2005-02-11 Ongoing
n-pentane n-C5H12 2005-02-11 Ongoing
n-hexane n-C6H14 2005-02-11 Ongoing
isoprene C5H8 2006-10-11 Ongoing
Acetylene C2H2 2007-11-02 Ongoing