ΔE 7.2, close: similar, with a visible difference side by side. Interior Turquoise Green Soviet is a little darker than Hazardous Smog.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Interior Turquoise Green Soviet is a little darker than Hazardous Smog.
The same difference applies the other way round: Hazardous Smog is a little lighter.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Hazardous Smog on the colour wheel See Interior Turquoise Green Soviet on the colour wheel
All matches: Hazardous Smog equivalents · Interior Turquoise Green Soviet equivalents