Using wastewater analysis to estimate the prevalence of THC and CBD use in a population of Japan during and after the Covid-19 pandemic (2020–2023)
The prevalence of THC use remained low in Japan compared to other countries despite a steady increase in recent years, but the use of CBD was much more common than in other countries. These findings provide evidence on the value of wastewater surveillance of drug use to differentiate between THC and CBD in Japan.
Authors
- Qiuda Zheng (ORCID: https://orcid.org/0000-0002-6456-0926)
- Ryo Honda (ORCID: https://orcid.org/0000-0003-2577-9826)
- Wayne Hall
- Phong Khanh Thai (ORCID: https://orcid.org/0000-0003-0042-3057)
- Zhe Wang (ORCID: https://orcid.org/0000-0003-1266-7251)
- Hiroe Hara-Yamamura (ORCID: https://orcid.org/0000-0002-2297-9403)
- N Yagishita
Institutions
- Kanazawa University (JP)
- The University of Queensland (AU)
Publication Details
- Journal
- Forensic Science International
- Published
- 2025-10-15
- DOI
- https://doi.org/10.1016/j.forsciint.2025.112687
- Citations
- 1
- Primary Topic
- Health, Environment, Cognitive Aging
- Type
- article
- Field-Weighted Citation Impact
- 1.20