EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES
Trace gases in the atmosphere that do not occur in large quantities but
are significant to life on Earth or are important constituents of the
chemical cycles in the atmosphere. [Journal of American Hygienist
Association; v54; 639-46; 1993.] [Atmospheric Environment B; v27B; 275-82;
Atmospheric and Air Chemistry Glossary from the Sam Houston State University.