PMID- 38365023
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240305
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 920
DP  - 2024 Apr 10
TI  - Plastic pollution in Moreton Bay sediments, Southeast Queensland, Australia.
PG  - 170987
LID - S0048-9697(24)01126-4 [pii]
LID - 10.1016/j.scitotenv.2024.170987 [doi]
AB  - The mounting issue of plastic waste in the aquatic ecosystem is a growing source 
      of concern. Most plastic waste originates on land and a significant proportion of 
      this eventually finds its way into the marine environment, which is widely 
      regarded as a major repository for plastic debris. Currently, there exists a 
      substantial gap in our understanding of how much plastic, the main polymer types, 
      and the distribution of plastic in the marine environment. This study aimed to 
      provide information on mass concentrations of a range of plastics in the surface 
      sediments in the semi-enclosed Moreton Bay, just offshore the large city of 
      Brisbane, Southeast Queensland, Australia. Surface sediment samples were 
      quantitatively analysed for a suite of 7 common plastic polymer types (i.e., 
      polystyrene (PS), polycarbonate (PC), poly-(methyl methacrylate) (PMMA), 
      polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE) and 
      polyvinyl chloride (PVC)) using a pressurized liquid extraction (PLE) followed by 
      double-shot microfurnace pyrolysis coupled to gas chromatography mass 
      spectrometry (Pyr-GC/MS). The advantage of this approach is that it can measure 
      plastics below the limit of visual detection. The study revealed that 
      Sigma(7)plastics were consistently present in the samples, although the 
      concentrations displayed a wide range of concentrations from 3.3 to 2194.2 mug/g 
      across different sites. Among the polymers analysed, PE and PVC were found at the 
      highest concentrations, ranging from 2.3 to 1885.9 mug/g and 3.0-979.5 mug/g, 
      respectively. Based on the average concentrations of plastics measured, the dry 
      bulk density and volume of sediments within the top 10 cm of the bay, it was 
      estimated that there is a minimum of 7000 t of plastics stored in the surface 
      sediments of the bay. This study is the first to report the mass concentrations 
      of identified plastics and identify the main polymer types in Moreton Bay. This 
      is important information to develop management plans to reduce the plastic waste 
      entering the coastal marine environment.
CI  - Copyright (c) 2024 The Authors. Published by Elsevier B.V. All rights reserved.
FAU - Okoffo, Elvis D
AU  - Okoffo ED
AD  - Queensland Alliance for Environmental Health Sciences (QAEHS), The University of 
      Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia. Electronic 
      address: e.okoffo@uq.edu.au.
FAU - Tan, Emmeline
AU  - Tan E
AD  - School of the Environment, Faculty of Science, The University of Queensland, 
      Australia.
FAU - Grinham, Alistair
AU  - Grinham A
AD  - School of Civil Engineering, Faculty of Engineering, Architecture, and 
      Information Technology, University of Queensland, Australia.
FAU - Gaddam, Sai Meghna Reddy
AU  - Gaddam SMR
AD  - School of the Environment, Faculty of Science, The University of Queensland, 
      Australia.
FAU - Yip, Josie Yee Hang
AU  - Yip JYH
AD  - School of the Environment, Faculty of Science, The University of Queensland, 
      Australia.
FAU - Twomey, Alice J
AU  - Twomey AJ
AD  - School of the Environment, Faculty of Science, The University of Queensland, 
      Australia.
FAU - Thomas, Kevin V
AU  - Thomas KV
AD  - Queensland Alliance for Environmental Health Sciences (QAEHS), The University of 
      Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia.
FAU - Bostock, Helen
AU  - Bostock H
AD  - School of the Environment, Faculty of Science, The University of Queensland, 
      Australia.
LA  - eng
PT  - Journal Article
DEP - 20240215
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
SB  - IM
OTO - NOTNLM
OT  - Australia
OT  - Marine sediments
OT  - Microplastics
OT  - Moreton Bay
OT  - Plastics
OT  - Pyr-GC/MS
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- 2024/02/17 10:42
MHDA- 2024/02/17 10:43
CRDT- 2024/02/16 19:16
PHST- 2023/10/22 00:00 [received]
PHST- 2024/02/13 00:00 [revised]
PHST- 2024/02/13 00:00 [accepted]
PHST- 2024/02/17 10:43 [medline]
PHST- 2024/02/17 10:42 [pubmed]
PHST- 2024/02/16 19:16 [entrez]
AID - S0048-9697(24)01126-4 [pii]
AID - 10.1016/j.scitotenv.2024.170987 [doi]
PST - ppublish
SO  - Sci Total Environ. 2024 Apr 10;920:170987. doi: 10.1016/j.scitotenv.2024.170987. 
      Epub 2024 Feb 15.