PMID- 35987225 OWN - NLM STAT- MEDLINE DCOM- 20221019 LR - 20221207 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 851 IP - Pt 1 DP - 2022 Dec 10 TI - Consumption of common illicit drugs in twenty-one cities in southwest China through wastewater analysis. PG - 158105 LID - S0048-9697(22)05204-4 [pii] LID - 10.1016/j.scitotenv.2022.158105 [doi] AB - Wastewater-based epidemiology (WBE) was applied to estimate illicit drugs consumption at a provincial scale in southwest China. A large-scale wastewater sampling campaign was carried out from October to November in 2021 in 156 different wastewater treatment plants (WWTPs). Two 24-h composite influent wastewater samples were collected in each WWTP. Concentrations of 11 illicit drugs or their metabolites were determined using liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). Benzoylecgonine, cocaine, 6-monoacetylmorphine, norketamine, 3,4-methylenedioxymethamphetamine (MDMA), and MDA were not detected in any of the wastewater samples. Methamphetamine and morphine were detected in >84% of samples, while ketamine was found in about 6% of the samples. The city-specific population-weighted consumption of methamphetamine and ketamine were in the range of 0.6-49.7 and N.D.-7.0 mg 1000 inh(-1) day(-1), respectively, with provincial population-weighted values of 22.6 and 2.4 mg 1000 inh(-1) day(-1) in southwest China. The city-specific load of morphine varied from 3.2 to 10.2 mg 1000 inh(-1) day(-1), with provincial population-weighted load of 6.7 mg 1000 inh(-1) day(-1). Taking into account therapeutic use of morphine and codeine, the provincial heroin consumption was estimated to be 10.3 mg 1000 inh(-1) day(-1), ranging from 1.7 to 18.5 mg 1000 inh(-1) day(-1) in 21 cities. Overall, the patterns of illicit drugs use were similar across southwest China, with high prevalence of methamphetamine and heroin, but relatively low use of ketamine. These findings could provide accurate drugs consumption information for timely identifying potential hotspots of illicit drugs use in southwest China. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Wang, Huanbo AU - Wang H AD - School of Environment and Resource, Southwest University of Science and Technology, Mianyang, China. FAU - Xu, Buyi AU - Xu B AD - National Anti-Drug Laboratory Sichuan Regional Center, Chengdu, China; Sichuan Police College, Luzhou, China. Electronic address: xubuyi123@scpolicec.edu.cn. FAU - Yang, Li AU - Yang L AD - National Anti-Drug Laboratory Sichuan Regional Center, Chengdu, China. FAU - Huo, Tingting AU - Huo T AD - School of Environment and Resource, Southwest University of Science and Technology, Mianyang, China. FAU - Bai, Dengwen AU - Bai D AD - National Anti-Drug Laboratory Sichuan Regional Center, Chengdu, China. FAU - An, Qi AU - An Q AD - School of Environment and Resource, Southwest University of Science and Technology, Mianyang, China. FAU - Li, Xiran AU - Li X AD - School of Environment and Resource, Southwest University of Science and Technology, Mianyang, China. LA - eng PT - Journal Article DEP - 20220817 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Illicit Drugs) RN - 0 (Waste Water) RN - 0 (Water Pollutants, Chemical) RN - 44RAL3456C (Methamphetamine) RN - 690G0D6V8H (Ketamine) RN - 70D95007SX (Heroin) RN - 76I7G6D29C (Morphine) RN - I5Y540LHVR (Cocaine) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) RN - UX6OWY2V7J (Codeine) SB - IM MH - China/epidemiology MH - Chromatography, Liquid MH - Cities MH - *Cocaine/analysis MH - Codeine/analysis MH - Heroin/analysis MH - *Illicit Drugs/analysis MH - *Ketamine MH - *Methamphetamine/analysis MH - Morphine/analysis MH - *N-Methyl-3,4-methylenedioxyamphetamine MH - Substance Abuse Detection/methods MH - Tandem Mass Spectrometry MH - Wastewater/chemistry MH - *Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Illicit drugs consumption OT - Population biomarker OT - Southwest China OT - Wastewater-based epidemiology COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/08/21 06:00 MHDA- 2022/10/20 06:00 CRDT- 2022/08/20 19:23 PHST- 2022/05/31 00:00 [received] PHST- 2022/08/13 00:00 [revised] PHST- 2022/08/14 00:00 [accepted] PHST- 2022/08/21 06:00 [pubmed] PHST- 2022/10/20 06:00 [medline] PHST- 2022/08/20 19:23 [entrez] AID - S0048-9697(22)05204-4 [pii] AID - 10.1016/j.scitotenv.2022.158105 [doi] PST - ppublish SO - Sci Total Environ. 2022 Dec 10;851(Pt 1):158105. doi: 10.1016/j.scitotenv.2022.158105. Epub 2022 Aug 17.