gas phase
type: Concept

Observed Property

Observation Matrix

number concentration
type: Concept

pyrene
type: Concept

Object Of Interest

ACTRIS Vocabulary
type: ConceptScheme

trace gas variables
type: Concept
narrower: gaseous pyrene number concentration

gaseous pyrene number concentration
type: Concept
broader: trace gas variables
broader: variable
in scheme: ACTRIS Vocabulary
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 pyrene is C16H10. It is a member of the group of polycyclic aromatic hydrocarbons (PAHs). The IUPAC name is pyrene
creator: https://orcid.org/0000-0002-8981-0805
Object Of Interest: pyrene
Observation Matrix: gas phase
Observed Property: number concentration
alternative label: pyrene number concentration

variable
type: Concept
narrower: gaseous pyrene number concentration