Introduction Cryptomarkets operating on the darknet are a recent phenomenon that has
gained importance only over the last couple of years (Barratt, 2012). However, they now …

Several drugs of abuse, including amphetamines, cocaine and its metabolite,
benzoylecgonine and several opioid prescription drugs were detected in wastewater from …

Introduction Recreational drug use by emerging adults has been identified as an
increasingly normalized trend in social contexts. It has been documented that the …

Abstract Introduction and Aims Wastewater analysis provides a non‐intrusive way of
measuring drug use within a population. We used this approach to determine daily use of …

Abstract Background Electronic Dance Music (EDM) party attendees are often
polysubstance users and are at high risk for use of new psychoactive substances (NPS). We …

Drug consumption in individual cities, regions, and at various music events and festivals
across the EU has generally been monitored via questionnaires, patients' medical data, and …

Population size is crucial when estimating population-normalized drug consumption (PNDC)
from wastewater-based drug epidemiology (WBDE). Three conceptually different population …

Background The popularity of electronic dance music and rave parties such as dance
festivals has increased in recent years. Targeted samples of party-goers suggest high rates …

Background There are increasing reports of social media being used to buy and sell illegal
drugs internationally. Studies of social media drug markets to date have largely involved …

Background Despite the current shift towards permissive cannabis policies, few studies have
investigated the pleasurable effects users seek. Here, we investigate the effects of cannabis …