mass concentration
type: Concept

aerosol variables
type: Concept

Observed Property

PCB 84
type: Concept

PCB 89
type: Concept

Observation Matrix

Object Of Interest

ACTRIS Vocabulary
type: ConceptScheme

aerosol particle PCB 84 and PCB 89 mass concentration
creator: https://orcid.org/0000-0002-8981-0805
Object Of Interest: PCB 84
Object Of Interest: PCB 89
broader: aerosol variables
broader: variable
Observation Matrix: aerosol 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. 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". "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. PCB 84 and PCB 89 is a mixture of two compunds and belongs to the group of persistent organic pollutants known as polychlorinated biphenyls (PCBs).
in scheme: ACTRIS Vocabulary
type: Concept

variable
type: Concept

aerosol particle phase
type: Concept