gas phase
mass concentration
Observed Property
Observation Matrix
gaseous PCB 201 and PCB 157 mass concentration
ACTRIS Vocabulary
PCB 201
PCB 157
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'. PCB 201 and PCB 157 is a mixture of two compunds and belongs to the group of persistent organic pollutants known as polychlorinated biphenyls (PCBs).
PCB 201 and PCB 157 mass concentration
trace gas variables
variable
Object Of Interest