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Water as a Source of Indoor Air Contamination with Potentially Pathogenic Aeromonas hydrophila in Aquaculture

Author

Listed:
  • Iwona Gołaś

    (Department of Water Protection Engineering and Environmental Microbiology, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland)

  • Mariusz Szmyt

    (Department of Ichthyology and Aquaculture, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland)

  • Katarzyna Glińska-Lewczuk

    (Department of Water Management and Climatology, University of Warmia and Mazury in Olsztyn, Plac Łodzki 2, 10-719 Olsztyn, Poland)

Abstract

Human activities influence the presence of potentially pathogenic bacteria in indoor air. The aim of this study was to determine the effect of the experimental rearing of European grayling and European perch in a recirculating aquaculture system on the contamination of indoor air with potentially pathogenic Aeromonas hydrophila (PPAH) and the resulting health risks to humans. The PPAH counts, their resistance to seven antibiotics, and the multiple antibiotic resistance (MAR) index were determined in samples of indoor air and water from rearing tanks. The PPAH counts were highest in the laboratory bioaerosol where two fish species were reared. The calculated indoor/outdoor ratio (I/O > 1) demonstrated that tank water was the internal source of PPAH emissions. The unconstrained PCA revealed strong positive relationships ( p ≤ 0.05) between the PPAH counts in the indoor air and water samples. Most of the PPAH strains isolated from laboratory air were resistant to tetracycline, cefotaxime, and erythromycin, and 26–82% of the isolates exhibited multiple drug resistance. The values of the MAR index were similar in samples of laboratory air and water (0.23–0.34 and 0.24–0.36, respectively). Agglomerative clustering revealed two clusters of strains isolated from laboratory air and tank water. The results of this study indicate that aquaculture can be a source of indoor air contamination with PPAH.

Suggested Citation

  • Iwona Gołaś & Mariusz Szmyt & Katarzyna Glińska-Lewczuk, 2022. "Water as a Source of Indoor Air Contamination with Potentially Pathogenic Aeromonas hydrophila in Aquaculture," IJERPH, MDPI, vol. 19(4), pages 1-17, February.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:4:p:2379-:d:752830
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    References listed on IDEAS

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    1. Milva Pepi & Silvano Focardi, 2021. "Antibiotic-Resistant Bacteria in Aquaculture and Climate Change: A Challenge for Health in the Mediterranean Area," IJERPH, MDPI, vol. 18(11), pages 1-31, May.
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