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Journal Article

Citation

Bade R, Tscharke BJ, O'Brien JW, Magsarjav S, Humphries M, Ghetia M, Thomas KV, Mueller JF, White JM, Gerber C. Environ. Sci. Technol. Lett. 2021; 8(9): 799-804.

Copyright

(Copyright © 2021, American Chemical Society)

DOI

10.1021/acs.estlett.1c00532

PMID

37566342

PMCID

PMC8370123

Abstract

Methamphetamine, MDMA, cocaine, cannabis, and alcohol in samples from 20 wastewater treatment plants servicing the eight state or territory capitals of Australia were analyzed, with equivalent coverage of >45% of the national population. Trends in drug consumption were calculated and assessed from samples collected from 2016 to 2020, with a focus on pre-COVID-19 (August 2016 to December 2019), versus February to June 2020, when Australia observed a nationwide lockdown.

RESULTS showed delayed but significant decreases in methamphetamine, >50% in Western Australia. In contrast, significant increases in cannabis in most jurisdictions were observed. This suggests changes in consumption may be somewhat linked to reduced supply of imported substances, with increased use of locally produced drugs. Initial decreases in cocaine and MDMA consumption were evident in many parts of the country, but pre-COVID trends were re-established after April 2020. Interestingly, weekend-weekday differences were narrowed for cocaine, MDMA, and alcohol during lockdown, which might be expected due to bars being closed and social gathering not allowed. With this study providing insight into the first four months of COVID-19 restrictions in Australia, it remains to be seen what the longer-term effect of the pandemic will be.


Language: en

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