TRACE ELEMENTS/TRACE METALS
type: Concept

HALOCARBONS AND HALOGENS
type: Concept

HYDROGEN COMPOUNDS
type: Concept

NITROGEN COMPOUNDS
type: Concept

OXYGEN COMPOUNDS
type: Concept

PHOTOCHEMISTRY
type: Concept

ATMOSPHERIC CHEMISTRY
type: Concept
alternative label: ATMOSPHERIC CHEMISTRY/CARBON AND HYDROCARBON COMPOUNDS
in scheme: sciencekeywords
change note: 2021-02-26 09:47:26.0 [tstevens] Insert Concept add narrower relation (ATMOSPHERIC CHEMISTRY [b9c56939-c624-467d-b196-e56a5b660334,83481] - NOBLE GAS [18d9ddbb-66cc-4b92-aa8d-2395ab3a17ce,560876]);
change note: 2016-05-12 15:54:58.0 [gee-cee] insert AltLabel (id: null text: ATMOSPHERIC CHEMISTRY/CARBON AND HYDROCARBON COMPOUNDS language code: en);
definition: Measurements of chemical constituents in the atmosphere including the major (non-H2O) greenhouse gases (CO2, CH4, CFC, N2O).

CARBON AND HYDROCARBON COMPOUNDS
type: Concept

TRACE GASES/TRACE SPECIES
type: Concept

NOBLE GAS
type: Concept

SULFUR COMPOUNDS
type: Concept

ATMOSPHERE
type: Concept