gas and particle phase
type: Concept

mass concentration
type: Concept

gas and particle variables
type: Concept
narrower: gas and particle PCB 42 mass concentration

PCB 42
type: Concept

Observed Property

Observation Matrix

Object Of Interest

ACTRIS Vocabulary
type: ConceptScheme

gas and particle PCB 42 mass concentration
type: Concept
broader: gas and particle variables
broader: variable
in scheme: ACTRIS Vocabulary
Observed Property: mass concentration
definition: Mass concentration means mass per unit volume and is used in the construction mass_ concentration_ of_ X_ in_ Y, where X is a material constituent of Y. "Gas and particle" means a system consisting of both gas and suspended liquid or solid particles in air (except cloud droplets). The chmical formula for PCB 42 is C12H6Cl4. It belongs to the group of persitent organic pollutants (POPs) known as polychlorinated biphenyls (PCBs). The IUPAC name is 2,2',3,4'-Tetrachlorobiphenyl
Object Of Interest: PCB 42
creator: https://orcid.org/0000-0002-8981-0805
Observation Matrix: gas and particle phase

variable
type: Concept
narrower: gas and particle PCB 42 mass concentration