Predicted sensitivity of ALMA Band 1 to the known pulsar population. The black dots are the pulsars with reported spectral index, the grey dots are those without spectral index and from which we draw values from a normal distribution. The sources detectable lie above the threshold lines of integration times of 1 h (light green), 1.5 h (green) and 2.5 h (blue). The light grey dots are pulsars not visible to ALMA due to the declination limit (< 47°). Based on Fig. 9 in Liu et al. (2021).