gas phase
type: Concept

C9-aromatics
type: Concept

mass concentration
type: Concept

Observed Property

Observation Matrix

Object Of Interest

ACTRIS Vocabulary
type: ConceptScheme

trace gas variables
type: Concept
narrower: C9-aromatics mass concentration

C9-aromatics mass concentration
type: Concept
Object Of Interest: C9-aromatics
in scheme: ACTRIS Vocabulary
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. 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 chemical formula for C9-aromatics is C45H58. C9-aromatics are members of the group of hydrocarbons known as aromatics.
contributor: 0000-0002-1490-169X
broader: trace gas variables
broader: variable
Observed Property: mass concentration
creator: https://orcid.org/0000-0001-5158-8703
Observation Matrix: gas phase

variable
type: Concept
narrower: C9-aromatics mass concentration