In
atmospheric chemistry: •
{{chem2|NO_{x}|}} (or NO
x) refers to the sum of
NO and nitrogen dioxide|. •
{{chem2|NO_{y}|}} (or NO
y) refers to the sum of {{chem2|NO_{
x}|}} and all oxidized atmospheric odd-nitrogen species (
e.g. the sum of {{chem2|NO_{
x}|}}, Nitric acid|, Nitrous acid|, etc.) • {{chem2|NO_{
z}|}} (or NO
z) = {{chem2|NO_{
y}|}} − {{chem2|NO_{
x}|}} •
Mixed Oxides of Nitrogen ("MON"): solutions of nitric oxide in dinitrogen tetroxide/nitrogen dioxide. Image:Nitric-oxide-3D-vdW.png| Image:Nitrogen-dioxide-3D-vdW.png| Image:Nitrous-oxide-3D-vdW.png| Image:Dinitrogen-trioxide-3D-vdW.png| Image:Dinitrogen-tetroxide-3D-vdW.png| Image:Dinitrogen-pentoxide-3D-vdW.png| Image:Trinitramide-3D-spacefill.png| ==Stability==