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Infographic. Cannabis residues in wastewater in selected European cities: most recent data (updated June 2024)
Publication date
Description
This resource is part of the European Drug Report 2024, the EMCDDA's annual overview of the drug situation in Europe.
Cannabis residues in wastewater in selected European cities: most recent data
Red = increase | Green = decrease | Yellow = stable, with respect to previous value | Blue = no previous data
Mean daily amounts of THC-COOH in milligrams per 1000 population. In most cities, sampling was carried out over a week between March and May 2023.
Taking into account statistical errors, values that differ less than 10 % from the previous value are considered stable in this figure.
Source: Sewage Analysis Core Group Europe (SCORE)
For the complete data set and analysis, see Wastewater analysis and drugs – a European multi-city study.
Prevalence data presented here are based on general population surveys submitted to the EMCDDA by national focal points. For the latest data and detailed methodological information please see the Statistical Bulletin 2024: Prevalence of drug use.
Graphics showing the most recent data for a country are based on studies carried out between 2013 and 2023.
Prevalence estimates for the general population: age ranges are 18-64 and 18-34 for Germany, Greece, France, Italy and Hungary; 16-64 and 16-34 for Denmark, Estonia and Norway; 18-65 for Malta; 17-34 for Sweden.
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About the data
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Currently not available for individual countries
50
Cannabis
101
prevalence of cannabis use
102
prevalence of cocaine use
103
prevalence of MDMA use
104
prevalence of amphetamine use
105
prevalence of methamphetamine use
231
Gender breakdown: all treatment entrants
232
Mean age: all treatment entrants
233
Client status – number of clients
234
First-time entrants
235
Previously treated entrants
236
Unknown status
237
Route of administration (%)
238
Injecting
239
Smoking/inhaling
240
Eating/drinking
241
Sniffing
242
Other
243
Frequency of use in the last month (%): all treatment entrants
