RT Journal Article T1 Spatio‐temporal assessment of illicit drug use at large scale: evidence from 7 years of international wastewater monitoring A1 González Mariño, Iria A1 Baz-Lomba, Jose Antonio A1 Alygizakis, Nikiforos A. A1 Andrés-Costa, María Jesús A1 Bade, Richard A1 Barron, Leon A1 Been, Frederic A1 Berset, Jean-Daniel A1 Bijlsma, Lubertus A1 Bodík, Igor A1 Brenner, Asher A1 Brock, Andreas L. A1 Burgard, Daniel A. A1 Castrignanò, Erika A1 Christophoridis, Christophoros E. A1 Covaci, Adrian A1 Voogt, Pim de A1 Devault, Damien A. A1 Dias, Mário J. A1 Emke, Erik A1 Fatta-Kassinos, Despo A1 Fedorova, Ganna A1 Fytianos, Konstantinos A1 Gerber, Cobus A1 Grabic, Roman A1 Grüner, Stefan A1 Gunnar, Teemu A1 Hapeshi, Evroula A1 Heath, Ester A1 Helm, Björn A1 Hernández, Félix A1 Kankaanpaa, Aino A1 Karolak, Sara A1 Kasprzyk-Hordern, Barbara A1 Krizman-Matasic, Ivona A1 Lai, Foon Yin A1 Lechowicz, Wojciech A1 Lopes, Alvaro A1 López de Alda, Miren A1 López-García, Ester A1 Löve, Arndís S.C. A1 Mastroianni, Nicola A1 McEneff, Gillian L. A1 Montes Goyanes, Rosa A1 Munro, Kelly A1 Nefau, Thomas A1 Oberacher, Herbert A1 O'Brien, Jake A1 Olafsdottir, Kristin A1 Picó, Yolanda A1 Plósz, Benedek G. A1 Polesel, Fabio A1 Postigo, Cristina A1 Quintana Álvarez, José Benito A1 Ramin, Pedram A1 Reid, Malcolm J. A1 Rice, Jack A1 Rodil Rodríguez, María del Rosario A1 Senta, Ivan A1 Simões, Susana M. A1 Sremacki, Maja M. A1 Styszko, Katarzyna A1 Terzic, Senka A1 Thomaidis, Nikolaos S. A1 Thomas, Kevin V. A1 Tscharke, Ben J. A1 Nuijs, Alexander L. N. van A1 Yargeau, Viviane A1 Zuccato, Ettore A1 Castiglioni, Sara A1 Ort, Christoph K1 Amphetamine K1 Cocaine K1 Ecstasy/MDMA K1 Illicit drugs K1 Methamphetamine K1 Wastewater-based epidemiology AB Background and aims Wastewater‐based epidemiology is an additional indicator of drug use that is gaining reliability to complement the current established panel of indicators. The aims of this study were to: (i) assess spatial and temporal trends of population‐normalized mass loads of benzoylecgonine, amphetamine, methamphetamine and 3,4‐methylenedioxymethamphetamine (MDMA) in raw wastewater over 7 years (2011–17); (ii) address overall drug use by estimating the average number of combined doses consumed per day in each city; and (iii) compare these with existing prevalence and seizure data. Design Analysis of daily raw wastewater composite samples collected over 1 week per year from 2011 to 2017. Setting and Participants Catchment areas of 143 wastewater treatment plants in 120 cities in 37 countries. Measurements Parent substances (amphetamine, methamphetamine and MDMA) and the metabolites of cocaine (benzoylecgonine) and of Δ9‐tetrahydrocannabinol (11‐nor‐9‐carboxy‐Δ9‐tetrahydrocannabinol) were measured in wastewater using liquid chromatography–tandem mass spectrometry. Daily mass loads (mg/day) were normalized to catchment population (mg/1000 people/day) and converted to the number of combined doses consumed per day. Spatial differences were assessed world‐wide, and temporal trends were discerned at European level by comparing 2011–13 drug loads versus 2014–17 loads. Findings Benzoylecgonine was the stimulant metabolite detected at higher loads in southern and western Europe, and amphetamine, MDMA and methamphetamine in East and North–Central Europe. In other continents, methamphetamine showed the highest levels in the United States and Australia and benzoylecgonine in South America. During the reporting period, benzoylecgonine loads increased in general across Europe, amphetamine and methamphetamine levels fluctuated and MDMA underwent an intermittent upsurge. Conclusions The analysis of wastewater to quantify drug loads provides near real‐time drug use estimates that globally correspond to prevalence and seizure data PB Wiley YR 2019 FD 2019-10-23 LK http://hdl.handle.net/10347/20604 UL http://hdl.handle.net/10347/20604 LA eng NO González-Mariño et al. Spatio‐temporal assessment of illicit drug use at large scale: evidence from 7 years of international wastewater monitoring. Addictions 115 (2020) 109-120 NO This study was supported by the following countries, institutions and projects Australia: Thyne Reid foundation; Canada: Natural Sciences and Engineering Research Council of Canada (NSERC); Iceland: The Icelandic Research Fund (Grant number 163049–051); Slovenia: Slovene Research Agency (funding Project L1–9191); Spain: MINECO/AEI projects (CTM2014–56628‐C3–2‐R, CTQ2015–65603‐P, CTM2016–81935‐REDT, CTM2017–84763‐C3–2‐R), Galician Council of Culture, Education and Universities (ED481D 2017/003); UK: Environmental Sustainability Knowledge Transfer Network, Engineering and Physical Sciences Research Council and Thermo Fisher Scientific (CASE industrial scholarship for K. Munro, Ref.: EP/J502029/1). European Monitoring Centre for Drugs and Drug Addiction (EMCDDA); EU International Training Network SEWPROF (Marie Curie‐FP7‐PEOPLE, grant number 317205); COST Action ES1307 supported by COST (European Cooperation in Science and Technology); WATCH (Wastewater Analysis of Traces of illicit drug‐related Chemicals for law enforcement and public Health DG migration and Home affairs ‐ HOME/2015/ISFP/PR/DRUG/0062). Sampling support and provision of catchment information Austria: Klemens Geiger and Michael Schlapp; Belgium: Jonathan Phariseau, Bart Coene, Luc Van Os, Peter Nys, Dieter Lemaire, Jean‐François Mougel, Patrick Vantroyen and Karel Claes; Croatia: Marin Ganjto; Czech Republic: Jiri Stara and Robert Hrich Brněnské; France: Véronique Bremont; Italy: Roberto Mazzini and Francesca Pizza (Milan), Francesco Avolio (Bologna), Fabrizio Moratto and Sergio Ghezzi (Gorizia), Rosanna Brienza and Simona Panariello (Potenza), Pier Paolo Abis and Antonia Attanasio (Bari), Antonella Cicala (Palermo); Norway: Pia Ryrfors; Portugal: João Goulão, José Martins, Pedro Alvaro and Fátima Paixão; Slovakia: Silvia Antalová and Jozef Tichy; Spain: Begoña Martínez López, Cristian Mesa, Santiago Querol Rodriguez, Fernando Llavador, Enrique Albors and Gloria Fayos; the Netherlands: Alex Veltman, Peter Theijssen, Peter van Dijk, Stefan Wijers, Mark Stevens, Ferry de Wilde. Analytical support Australia: Maulik Ghetia; Cyprus: Popi Karaolia; Greece: Nikoilaos Raikos; Spain: Ana Maria Botero‐Coy, Clara Boix, Alberto Celma, Jorge Pitarch, Inés Racamonde and Eddie Fonseca; Italy: Emma Gracia‐Lor, Nikolaos I. Rousis and Noelia Salgueiro‐Gonzalez. Data repository and data screening Eawag: Harald von Waldow; EMCDDA: Renate Hochwieser, Liesbeth Vandam, João Matias and Federica Mathis DS Minerva RD 28 abr 2026