Sections
Drugs in wastewater
Légende
Wastewater is a reliable source of indication of a population's drug use. A study has plunged into the groundwater of Lausanne, Geneva, Neuchâtel, Sion, Bern, Basel, St Gallen, Zurich, Lucerne, Winterthur, Lugano and Chur. Its aim: to map the types and quantities of narcotics consumed in Switzerland.