Distributions of log(t_dep) for all of the regions with positive 1.1 mm and 22 μm flux at the scales of 1′, 3′, 5′, 8′, 10′, and 15′ are shown in gray. The dashed blue line in each plot represents a Gaussian fit to the distribution. The mean (μ) and the standard deviation (σ) from the Gaussian fit are shown in red for each plot. The mean t_dep from the fit does not change much at different scales, and the standard deviation decreases as the scale increases.