Two British cities have been identified as having the highest levels of cocaine in sewage across Europe, as per a recent study. Data from the European Union Drugs Agency reveals that Middlesbrough ranks first in cocaine levels on both weekdays and weekends, followed by Bristol in second place.
Bristol, known for its high student population and vibrant party scene, also leads in Europe for the presence of ketamine in wastewater. Wastewater studies are considered a reliable way to track drug trends, providing insights into a city’s drug habits without relying on self-reported surveys.
In the latest data, Middlesbrough recorded an average of 2487.94 milligrams of cocaine per 1,000 people per day on weekdays, surpassing Amsterdam’s levels. Bristol showed lower cocaine levels but higher ketamine levels compared to other European cities.
London, Manchester, and Glasgow were not included in the EU study, despite their previous rankings for cocaine levels in wastewater studies. Authorities expressed deep concern over the use of ketamine and cocaine in cities, emphasizing collaborative efforts to combat drug use and trafficking.
In a bid to address the issue, border security measures have been enhanced to combat criminal activities related to drug trafficking. The study also highlighted the normalization of cocaine use in British towns and cities, raising awareness about the risks associated with drug consumption.
The study further pointed out that illicit substances like MDMA, amphetamine, and meth are more prevalent in continental Europe than in the UK. These drugs were found to be more common in cities across East Germany, Scandinavia, and the Netherlands compared to British cities.

