gas and particle phase
mass concentration
gas and particle variables
Observed Property
Observation Matrix
Object Of Interest
ACTRIS Vocabulary
PCB 135
PCB 144
variable
gas and particle PCB 144 and PCB 135 mass concentration
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). PCB 144 and PCB 135 is a mixture of two compunds and belongs to the group of persistent organic pollutants known as polychlorinated biphenyls (PCBs).