gas and particle phase
type: Concept

mass concentration
type: Concept

gas and particle variables
type: Concept
narrower: gas and particle PCB 177 mass concentration

Observed Property

Observation Matrix

Object Of Interest

ACTRIS Vocabulary
type: ConceptScheme

PCB 177
type: Concept

gas and particle PCB 177 mass concentration
type: Concept
in scheme: ACTRIS Vocabulary
creator: https://orcid.org/0000-0002-8981-0805
broader: variable
broader: gas and particle variables
Object Of Interest: PCB 177
Observation Matrix: gas and particle phase
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 177 is C12H3Cl7. It belongs to the group of persitent organic pollutants (POPs) known as polychlorinated biphenyls (PCBs). The IUPAC name is 2-chloronaphthalene

variable
type: Concept
narrower: gas and particle PCB 177 mass concentration