PMID- 37196837
OWN - NLM
STAT- MEDLINE
DCOM- 20230601
LR  - 20230601
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 330
DP  - 2023 Aug 1
TI  - Microplastics as vectors of chemical contaminants and biological agents in 
      freshwater ecosystems: Current knowledge status and future perspectives.
PG  - 121829
LID - S0269-7491(23)00831-X [pii]
LID - 10.1016/j.envpol.2023.121829 [doi]
AB  - Microplastics (MPs) are becoming ubiquitous, and their environmental fate is 
      becoming an issue of concern. Our review aims to synthesize current knowledge 
      status and provide future perspectives regarding the vector effect of MPs for 
      chemical contaminants and biological agents. The evidence in the literature 
      indicates that MPs are a vector for persistent organic pollutants (POPs), metals 
      and pharmaceuticals. Concentrations of chemical contaminant in orders of six-fold 
      higher on MPs surfaces than in the surrounding environmental waters have been 
      reported. Chemical pollutants such as perfluoroalkyl substances (PAFSs), 
      hexachlorocyclohexane (HCHs) and polycyclic aromatic hydrocarbons (PAHs), 
      exhibiting polarities in the range of 3.3-9 are the commonest chemicals reported 
      on MP surfaces. Regarding metals on MPs including chromium (Cr), lead (Pb), 
      cobalt (Co), the presence of C-O and N-H in MPs promote a relatively high 
      adsorption of these metals onto MP surfaces. Regarding pharmaceuticals, not much 
      has been done, but a few studies indicate that commonly used drugs such as 
      ibuprofen, ibuprofen, diclofenac, and naproxen have been associated with MPs. 
      There is sufficient evidence supporting the claim that MPs can act as vectors for 
      viruses, bacterial and antibiotic-resistant bacteria and genes, and MPs act to 
      accelerate horizontal and vertical gene transfer. An area that deserves urgent 
      attention is whether MPs can act as vectors for invertebrates and vertebrates, 
      mainly non-native, invasive freshwater species. Despite the ecological 
      significance of invasive biology, little research has been done in this regard. 
      Overall, our review summarises the state of the current knowledge, identifies 
      critical research gaps and provides perspectives for future research.
CI  - Copyright (c) 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.
FAU - Tumwesigye, Edgar
AU  - Tumwesigye E
AD  - Centre for Environmental Water Quality, Institute for Water Research, Rhodes 
      University, P.O. Box 94, Makhanda, South Africa.
FAU - Felicitas Nnadozie, Chika
AU  - Felicitas Nnadozie C
AD  - Centre for Environmental Water Quality, Institute for Water Research, Rhodes 
      University, P.O. Box 94, Makhanda, South Africa.
FAU - C Akamagwuna, Frank
AU  - C Akamagwuna F
AD  - Centre for Environmental Water Quality, Institute for Water Research, Rhodes 
      University, P.O. Box 94, Makhanda, South Africa.
FAU - Siwe Noundou, Xavier
AU  - Siwe Noundou X
AD  - Sefeka Makgatho Health Sciences University, South Africa.
FAU - William Nyakairu, George
AU  - William Nyakairu G
AD  - Department of Chemistry, Makerere University, Uganda.
FAU - Odume, Oghenekaro Nelson
AU  - Odume ON
AD  - Centre for Environmental Water Quality, Institute for Water Research, Rhodes 
      University, P.O. Box 94, Makhanda, South Africa. Electronic address: 
      n.odume@ru.ac.za.
LA  - eng
PT  - Journal Article
PT  - Review
DEP - 20230515
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Microplastics)
RN  - 0 (Plastics)
RN  - 0 (Biological Factors)
RN  - WK2XYI10QM (Ibuprofen)
RN  - 0 (Water Pollutants, Chemical)
RN  - 0 (Metals)
RN  - 0 (Pharmaceutical Preparations)
SB  - IM
MH  - Animals
MH  - *Microplastics
MH  - Plastics/chemistry
MH  - Ecosystem
MH  - Biological Factors
MH  - Ibuprofen
MH  - *Water Pollutants, Chemical/analysis
MH  - Metals
MH  - Fresh Water
MH  - Pharmaceutical Preparations
OTO - NOTNLM
OT  - Antibiotic-resistant bacteria
OT  - Ecological risk
OT  - Freshwater system
OT  - Metals
OT  - Persistent organic pollutants
OT  - Pharmaceuticals
OT  - Resistant genes
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- 2023/05/18 01:07
MHDA- 2023/06/01 06:42
CRDT- 2023/05/17 19:26
PHST- 2023/01/26 00:00 [received]
PHST- 2023/04/26 00:00 [revised]
PHST- 2023/05/13 00:00 [accepted]
PHST- 2023/06/01 06:42 [medline]
PHST- 2023/05/18 01:07 [pubmed]
PHST- 2023/05/17 19:26 [entrez]
AID - S0269-7491(23)00831-X [pii]
AID - 10.1016/j.envpol.2023.121829 [doi]
PST - ppublish
SO  - Environ Pollut. 2023 Aug 1;330:121829. doi: 10.1016/j.envpol.2023.121829. Epub 
      2023 May 15.