Preferred Label : air mass;
Detailed label : air mass in atmospheric chemistry;
IUPAC definition : A qualitative term to describe a widespread body of air with approximately uniform
characteristics which had been identified at a given time over a particular region
of the earth's surface. Sometimes an air mass is marked by inert tracers such as SF
sub 6 /sub which may be added to it. The composition of a given air mass undergoes
alteration as it migrates, chemical changes occur, compounds are removed by dry and
wet deposition and new impurities are added to the mass.;
Origin ID : A00192;
See also
A qualitative term to describe a widespread body of air with approximately uniform
characteristics which had been identified at a given time over a particular region
of the earth's surface. Sometimes an air mass is marked by inert tracers such as SF
sub 6 /sub which may be added to it. The composition of a given air mass undergoes
alteration as it migrates, chemical changes occur, compounds are removed by dry and
wet deposition and new impurities are added to the mass.
