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. 2021 Mar 14;3:6. doi: 10.1186/s42238-021-00064-2

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Frequency of reported THC content in flower products around the 20% threshold in Nevada and Washington. This figure consists of two plots showing histograms of the frequency of reported THC, with bins to the left of the 20% threshold shaded red and bins to the right of the 20% threshold shaded blue. The top plot (panel a) shows data from all labs in Nevada, and the bottom (panel b) shows all labs in Washington. Both states show a spike in the frequency of products just above the 20% threshold, though the increase is larger in Nevada. Plots are left-truncated at 10% for presentational purposes. Histogram bins were generated via the DCdensity function