gas phase
Observed Property
nitrogen oxides
Observation Matrix
number concentration
Object Of Interest
ACTRIS Vocabulary
trace gas variables
variable
nitrogen oxides number concentration
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'. Nitrogen oxides (NOx) describes a mixture of nitric oxide (NO) and nitrogen dioxide (NO2) and is a member of the group of inorganics.