How drug consumption differs across cities and how it evolved over the time
This map compares found wastewater drug residues per city for different substances. If you click on a city, a pop up shows trends and ranking for each substance for the city.
All values indicate the amount of drug residues found in wastewater. The milligrams refers to the amount of the drug found in the wastewater 1000 people produce on average. The ranking figure per each city always uses the most recent data available.