[C ii] intensity in the ionized gas, I_ion([C ii]), calculated from the observed [N ii] intensity, as a fraction of the total [C ii] intensity, I_tot([C ii]), versus the total [C ii] intensity for thirty one [N ii] components (28 Galactic disk and 3 Galactic center). The blue filled circles and blue filled diamonds are Galactic disk and Galactic center sources, respectively. I_tot([C ii]) equals the observed [C ii] intensity, I_obs([C ii]) (uncorrected for [C ii] foreground absorption). The four sources which are corrected for foreground absorption are shown by the red filled circles, where the total [C ii] intensity, I_tot([C ii]), is the corrected value to the observed intensity. The dashed blue arrows connect the corresponding uncorrected and corrected solutions. A ratio greater than 1.0 corresponds to a prediction of [C ii] arising from the [N ii] region greater than that observed.