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variable group > trace gas variables > gaseous PCB 81 number concentration

PREFERRED TERM

gaseous PCB 81 number concentration  

DEFINITION

  • 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 81 is C12H6Cl4. It is a member of the group of persistent organic pollutants known as polychlorinated biphenyls (PCBs). The IUPAC name is 3,4,4',5-Tetrachlorobiphenyl

BROADER CONCEPT

ENTRY TERMS

  • PCB 81 number concentration

OBSERVATION MATRIX

OBJECT OF INTEREST

OBSERVED PROPERTY

URI

https://vocabulary.actris.nilu.no/actris_vocab/PCB81numberconcentration

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