Spatiotemporal trends and impact of Covid-19 lockdown on eight sewage contaminants in Brisbane, Australia, from 2012 to 2020.

Vo, PHN; Tscharke, B; Toft, S; Madsen, C; Nguyen, KQ; Nguyen, HTM; Bui, XT; Li, J; Thai, PK

Spatiotemporal trends and impact of Covid-19 lockdown on eight sewage contaminants in Brisbane, Australia, from 2012 to 2020.

Vo, PHN Tscharke, B Toft, S Madsen, C Nguyen, KQ Nguyen, HTM Bui, XT Li, J Thai, PK

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Chemosphere, 2023, 314, pp. 137702
Issue Date:: 2023-02

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Field	Value	Language
dc.contributor.author	Vo, PHN
dc.contributor.author	Tscharke, B
dc.contributor.author	Toft, S
dc.contributor.author	Madsen, C
dc.contributor.author	Nguyen, KQ
dc.contributor.author	Nguyen, HTM
dc.contributor.author	Bui, XT
dc.contributor.author	Li, J
dc.contributor.author	Thai, PK
dc.date.accessioned	2024-04-02T00:33:13Z
dc.date.available	2022-12-28
dc.date.available	2024-04-02T00:33:13Z
dc.date.issued	2023-02
dc.identifier.citation	Chemosphere, 2023, 314, pp. 137702
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/177401
dc.description.abstract	This study aims to investigate the spatiotemporal trends and impact of COVID-19 lockdowns to the profile of physiochemical parameters in the influent of wastewater treatment plants (WWTPs) around Brisbane, Australia. One 24-hr composite influent sample was collected from 10 WWTPs and analyzed for a range of physiochemical parameters per week (i.e., chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen (TN), total phosphorus (TP), ammonia, volatile suspended solid (VSS)) and per month (i.e., Ni and Cr) from 2012 to 2020, including the period of COVID-19 lockdowns in the region. The catchments studied were urban, with a mix of domestic and industrial activities contributing towards the contaminant profile. Statistical analysis identified that industrial and commercial land use, as well as population size had a large impact to the parameter loads and profile. Per capita mass loads of Cr in one catchment were 100 times higher than in others from one industrial point source. TP demonstrated a potential monotonic decrease over time due to practical reduction policies that have been implemented for phosphorous content in household detergents, except for one catchment where trade waste from food manufacturing industries contributed to an overall increase of 6.9%/year TP. The COVID-19 lockdown (March-April 2020) posed different impact on different catchments, either decrease (7-61%) or increase (2-40%) of most parameter loads (e.g., COD, TOC, TN, TP, VSS, Ammonia), which was likely driven by catchment characteristics (i.e., the proportion of residential, commercial, and industrial land uses). This study enhances our understanding of spatiotemporal trend of contaminants in the catchments for further effective source control.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2022.137702
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.subject.mesh	Humans
dc.subject.mesh	Sewage
dc.subject.mesh	Ammonia
dc.subject.mesh	COVID-19
dc.subject.mesh	Communicable Disease Control
dc.subject.mesh	Australia
dc.subject.mesh	Nitrogen
dc.subject.mesh	Phosphorus
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Humans
dc.subject.mesh	Nitrogen
dc.subject.mesh	Phosphorus
dc.subject.mesh	Ammonia
dc.subject.mesh	Sewage
dc.subject.mesh	Communicable Disease Control
dc.subject.mesh	Waste Disposal, Fluid
dc.subject.mesh	Australia
dc.subject.mesh	COVID-19
dc.subject.mesh	Humans
dc.subject.mesh	Sewage
dc.subject.mesh	Ammonia
dc.subject.mesh	COVID-19
dc.subject.mesh	Communicable Disease Control
dc.subject.mesh	Australia
dc.subject.mesh	Nitrogen
dc.subject.mesh	Phosphorus
dc.subject.mesh	Waste Disposal, Fluid
dc.title	Spatiotemporal trends and impact of Covid-19 lockdown on eight sewage contaminants in Brisbane, Australia, from 2012 to 2020.
dc.type	Journal Article
utslib.citation.volume	314
utslib.location.activity	England
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Strength - C3 - Climate Change Cluster
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-02T00:33:11Z
pubs.publication-status	Published
pubs.volume	314

Abstract:

This study aims to investigate the spatiotemporal trends and impact of COVID-19 lockdowns to the profile of physiochemical parameters in the influent of wastewater treatment plants (WWTPs) around Brisbane, Australia. One 24-hr composite influent sample was collected from 10 WWTPs and analyzed for a range of physiochemical parameters per week (i.e., chemical oxygen demand (COD), total organic carbon (TOC), total nitrogen (TN), total phosphorus (TP), ammonia, volatile suspended solid (VSS)) and per month (i.e., Ni and Cr) from 2012 to 2020, including the period of COVID-19 lockdowns in the region. The catchments studied were urban, with a mix of domestic and industrial activities contributing towards the contaminant profile. Statistical analysis identified that industrial and commercial land use, as well as population size had a large impact to the parameter loads and profile. Per capita mass loads of Cr in one catchment were 100 times higher than in others from one industrial point source. TP demonstrated a potential monotonic decrease over time due to practical reduction policies that have been implemented for phosphorous content in household detergents, except for one catchment where trade waste from food manufacturing industries contributed to an overall increase of 6.9%/year TP. The COVID-19 lockdown (March-April 2020) posed different impact on different catchments, either decrease (7-61%) or increase (2-40%) of most parameter loads (e.g., COD, TOC, TN, TP, VSS, Ammonia), which was likely driven by catchment characteristics (i.e., the proportion of residential, commercial, and industrial land uses). This study enhances our understanding of spatiotemporal trend of contaminants in the catchments for further effective source control.

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http://hdl.handle.net/10453/177401