gas phase
Observed Property
Observation Matrix
number concentration
Object Of Interest
ACTRIS Vocabulary
trace gas variables
gaseous PCB 138 number concentration
Number concentration means number of molecule per unit volume, and is used in the construction molecular_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The chmical formula for PCB 138 is C12H4Cl6. It is a member of the group of persistent organic pollutants known as polychlorinated biphenyls (PCBs). The IUPAC name is 2,2',3,4,4',5'-Hexachlorobiphenyl
variable
PCB 138
PCB 138 number concentration