In 2015 this Europe-wide study, which includes over 60 cities, revealed a picture a distinct geographical and temporal patterns of drug use across European cities.
Sixteen cities have participated in four or five of the annual wastewater monitoring campaigns since 2011, which allows for five-year time trend analysis of drug consumption based on wastewater testing.
Explore the interactive tool.
In 2010, the Europe-wide network (Sewage Analysis CORE Group — Europe) was established with the aim of standardising the approaches used for wastewater analysis and coordinating international studies through the establishment of a common protocol of action. The first activity of the SCORE group was a Europe-wide investigation, performed in 2011 in 19 European cities. Following the success of this initial study, comparable studies were undertaken over the following four years, covering up to 21 European countries in 20125.