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Selected Publication:

Szulc, J; Otlewska, A; Okrasa, M; Majchrzycka, K; Sulyok, M; Gutarowska, B; .
(2017): Microbiological Contamination at Workplaces in a Combined Heat and Power (CHP) Station Processing Plant Biomass.
Int J Environ Res Public Health. 2017; 14(1): FullText FullText_BOKU

The aim of the study was to evaluate the microbial contamination at a plant biomass processing thermal power station (CHP). We found 2.42 x 10(3) CFU/m(3) of bacteria and 1.37 x 10(4) CFU/m(3) of fungi in the air; 2.30 x 10(7) CFU/g of bacteria and 4.46 x 10(5) CFU/g of fungi in the biomass; and 1.61 x 10(2) CFU/cm(2) bacteria and 2.39 x 10(1) CFU/cm(2) fungi in filtering facepiece respirators (FFRs). Using culture methods, we found 8 genera of mesophilic bacteria and 7 of fungi in the air; 10 genera each of bacteria and fungi in the biomass; and 2 and 5, respectively, on the FFRs. Metagenomic analysis (Illumina MiSeq) revealed the presence of 46 bacterial and 5 fungal genera on the FFRs, including potential pathogens Candida tropicalis, Escherichia coli, Prevotella sp., Aspergillus sp., Penicillium sp.). The ability of microorganisms to create a biofilm on the FFRs was confirmed using scanning electron microscopy (SEM). We also identified secondary metabolites in the biomass and FFRs, including fumigaclavines, quinocitrinines, sterigmatocistin, and 3-nitropropionic acid, which may be toxic to humans. Due to the presence of potential pathogens and mycotoxins, the level of microbiological contamination at workplaces in CHPs should be monitored.
Authors BOKU Wien:
Sulyok Michael
Find related publications in this database (using NML MeSH Indexing)
Air Microbiology*;Air Pollutants, Occupational/analysis*;Bacteria/isolation & purification;Biomass*;Environmental Monitoring;Fungi/isolation & purification;Hot Temperature;Humans;Occupational Exposure/analysis;Workplace*;

Find related publications in this database (Keywords)
plant biomass
workplace bioaerosols
harmful biological agents
filtering facepiece respirators (FFRs)
airborne dust

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