Fig. 1
From: Beyond a spec: assessing heterogeneity in the unregulated opioid supply
Photos of the batches collected prior to separation. Five batches were collected each month from March 2022 to July 2022. Greyed out boxes represent batches that were excluded from the analysis presented here. The total weight is presented for each batch. The expected concentrations based on pre-testing intake questions are indicated by (\(*\)) for “low-level street down” and (\(**\)) for “strong down”