Colonisation potential of microplastic particles containing organic pollutants by a river-isolated environmental Acinetobacter baumannii

Svjetlana Dekić Rozman; Maja Vujić; Jasna Hrenović; Vesna Gvoić; Miljana Prica; Aleksandra Tubić

doi:10.2478/aiht-2026-77-4049

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Colonisation potential of microplastic particles containing organic pollutants by a river-isolated environmental Acinetobacter baumannii

Archives of Industrial Hygiene and Toxicology

Volume 77 (2026): Issue 2 (June 2026)

By: Svjetlana Dekić Rozman, Maja Vujić, Jasna Hrenović, Vesna Gvoić , Miljana Prica and Aleksandra Tubić

Open Access

|Jun 2026

Figures & Tables

Mean (±SD) adsorbed benzene derivative per unit mass of adsorbent (µg/g) after 48 h of microplastics exposure: a) in individual solutions and b) in the mixture (n=3). 1,2,3-TeCB – 1,2,3-trichlorobenzene; 1,2,4-TeCB – 1,2,4-trichlorobenzene; 1,3,5-TeCB – 1,3,5-trichlorobenzene; HeCB – hexachlorobenzene; PE_PCP_1 – PE microparticles from the personal care product 1; PE_PCP_2 – PE microparticles from the personal care product 2; PeCB – pentachlorobenzene; PEp – standard PE microparticles (Thermo Fisher); TFL – trifluralin

Mean (±SD) desorbed concentrations of benzene derivatives in aqueous medium (µg/L) after 1 and 5 days of desorption. 1,2,3-TeCB – 1,2,3-trichlorobenzene; 1,2,4-TeCB – 1,2,4-trichlorobenzene; 1,3,5-TeCB – 1,3,5-trichlorobenzene; HeCB – hexachlorobenzene; PE_PCP_1 – PE microparticles from the personal care product 1; PE_PCP_2 – PE microparticles from the personal care product 2; PeCB – pentachlorobenzene; PEp – standard PE microparticles (Thermo Fisher); TFL – trifluralin

A. baumannii Sava 4 counts after the short- (one day) and long-term (five days) exposure to the highest concentration of microplastics (10 g/L) containing TFL; HCB; PeCB; 1,2,3-TCB; 1,2,4-TCB; 1,3,5-TCB separately and in a mixture (n=3, mean value ± SD). The starting A. baumannii Sava 4 abundance was 7.0±0.1 log CFU/mL. 1,2,3-TeCB – 1,2,3-trichlorobenzene; 1,2,4-TeCB – 1,2,4-trichlorobenzene; 1, 3, 5 - T e C B – 1,3,5-trichlorobenzene; HeCB – hexachlorobenzene; PE_PCP_1 – PE microparticles from the personal care product 1; PE_PCP_2 – PE microparticles from the personal care product 2; PeCB – pentachlorobenzene; PEp – standard PE microparticles (Thermo Fisher); TFL – trifluralin

Immobilised cells of A. baumannii Sava 4 on the surface of microplastic particle at 1000× magnification

SEM images of PE microplastic particles after incubation with A. baumannii Sava 4 at increasing magnifications illustrating the surface morphology of the particles and the distribution of bacterial cells on microplastic surface

Quality parameters data for GC/µECD analysis of benzene derivatives

Benzene derivative	MDL (ng/L)	PQL (ng/L)	Accuracy (%)	Precision (RSD %)
1,2,3-TeCB	3.72	6.41	98.82	8.81
1,2,4-TeCB	3.33	5.84	102.2	7.15
1,3,5-TeCB	3.02	5.36	104.1	7.22
PeCB	3.02	7.62	108.0	12.7
HeCB	2.18	5.45	97.70	11.9
TFL	3.87	9.67	100.0	11.7

Presence of non-target compounds in culture medium after desorption of 1 and 5 days

Compound	Microplastic
Compound	PEp after 1 d	PEp after 5 d	PE_PCP_1 after 1 d	PE_PCP_1 after 5 d	PE_PCP_2 after 1 d	PE_PCP_2 after 5 d
Benzaldehyde	+	+	+	+	+	+
2-ethyl hexanol	+	+	+	+	+	+
Benzyl alcohol	+	+				+
Phenylethyl alcohol	+	+
1-Dodecanol	+	+
Prophylbenzene	+	+
Acetophenone	+	+	+	+	+	+
Diethyl phthalate	+	+	+	+	+	+
Dibutyl phthalate	+	+	+	+
Bis (2-ethylhexyl) phthalate						+
1,2-Benzenedicarboxylic acid		+				+

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DOI: https://doi.org/10.2478/aiht-2026-77-4049 | Journal eISSN: 1848-6312 | Journal ISSN: 0004-1254

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Language: English

Page range: 140 - 148

Submitted on: Sep 1, 2025

Accepted on: Jun 1, 2026

Published on: Jun 30, 2026

Published by: Institute for Medical Research and Occupational Health

In partnership with: Paradigm Publishing Services

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Related subjects:

Basic medical science,

Basic medical science, other

© 2026 Svjetlana Dekić Rozman, Maja Vujić, Jasna Hrenović, Vesna Gvoić, Miljana Prica, Aleksandra Tubić, published by Institute for Medical Research and Occupational Health
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 77 (2026): Issue 2 (June 2026)

Colonisation potential of microplastic particles containing organic pollutants by a river-isolated environmental Acinetobacter baumannii

Figures & Tables

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Quality parameters data for GC/µECD analysis of benzene derivatives

Presence of non-target compounds in culture medium after desorption of 1 and 5 days

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