gas phase
type: Concept

gaseous PCB 144 and PCB 135 number concentration
type: Concept
in scheme: ACTRIS Vocabulary
broader: variable
broader: trace gas variables
Object Of Interest: PCB 135
Object Of Interest: PCB 144
creator: https://orcid.org/0000-0002-8981-0805
alternative label: PCB 144 and PCB 135 number concentration
Observed Property: number concentration
Observation Matrix: gas phase
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'. PCB 144 and PCB 135 is a mixture of two compunds and belongs to the group of persistent organic pollutants known as polychlorinated biphenyls (PCBs).

ACTRIS Vocabulary
type: ConceptScheme

variable
type: Concept
narrower: gaseous PCB 144 and PCB 135 number concentration

trace gas variables
type: Concept
narrower: gaseous PCB 144 and PCB 135 number concentration

PCB 135
type: Concept

PCB 144
type: Concept

number concentration
type: Concept

Observed Property

Observation Matrix

Object Of Interest