Groningen has the highest loads of cannabis residue found in sewage water out of all Dutch cities, with Rotterdam and Amsterdam following closely behind, according to a new research conducted by the Kiwa Water Research Institute and published by the municipality of Groningen. The city is also near the top for cocaine, MDMA and amphetamine usage.
The analysis, which was carried out in March, 2022, showed that Groningen’s sewage water contains traces of amphetamine (speed), methamphetamine (ice or crystal meth), MDMA (XTC), benzoylecgonine (a cocaine breakdown product), carboxy-THC (the main ingredient in marijuana,) and a combination of 3-MMC (new designer drug known locally as 3m or ‘poes’) and 4-MMC (also called mephedrone or ‘miauw miauw’).
On weekends, cocaine, methamphetamine, MDMA and MMC usage was even higher than on weekdays, despite nightlife being barely open this past spring.
The city was also second only to Amsterdam in the cocaine load found in the sewage water. Just as in Amsterdam, the usage of MDMA, considered to be a ‘party drug’, skyrocketed during the weekends in Groningen.
The report made a rough estimate of the size of Groningen’s illicit drug market. Cocaine dealers make on average €50,000 a day. For the methamphetamine market, the estimate ranges between €187 to €562. The sales of MDMA exceed €3,500, while the estimated size of the cannabis market is €95,608 per average day.
Students constitute a large part of the drugs buyers in Groningen, the Dagblad van het Noorden reports.