Microbial contamination of metalworking fluid bio aerosols and health risks to exposed workers (CROSBI ID 627101)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa
Podaci o odgovornosti
Bobić, Vedranka ; Lovrić, Blanka ; Butorac, Ana ; Perica, Kristina ; Cindrić, Mario ; Bačun-Družina, Višnja
engleski
Microbial contamination of metalworking fluid bio aerosols and health risks to exposed workers
Metal working fluids are complex liquids used for cooling and lubrication in metal processing as well for the removal of metal shavings that arise in the process of metal grinding, shaping or drilling. During the past decade the world metalworking industry has become increasingly aware of importance of metalworking fluids emulsions “good housekeeping” because it was established that bioaerosols contain a number of microorganisms and endotoxins that can significantly affect the health of workers. During operation, the emulsion due to the high temperature, high speed rotation of the machine and the pressure in the nozzle by which emulsion comes to the machine, aerosols and mist are forming which may contain a larger quantity of spores, bacteria and fungi. Workers can thus be exposed to a variety of pathogenic organisms that, depending on the aerosol fraction (inhalable, extrathoracic, thoracic, and respirable) entering into various segments of airways. Studies have shown that metalworking fluid aerosol inhalation may cause irritation of the respiratory tract, hypersensitivity pneumonitis, asthma symptoms, chronic bronchitis and skin and eye irritation which may be due to the metalworking fluid chemical composition or biological agents in aerosols. Samples of aerosols, mist and emulsions for microbiological analyzes were taken directly on growth plates in a mechanical workshop where workers over the years complained of the skin and respiratory problems. Determination of microorganisms was performed using proteomic approach CAF-/CAF+ MALDI MS/MS (chemically activated fragmentation negative/chemically activated fragmentation positive matrix assisted laser desorption/ionization tandem mass spectrometry). After examining the types of microorganisms is possible to determine the origin of health problems, but in assessing the impact of biological factors besides the types of microorganism endotoxins, antigen biomolecules and mycotoxins should be included. For a complete understanding how metalworking fluid chemistry and biology with metalworking system management affect the health of workers, interdisciplinary cooperation of epidemiologists, biochemists, chemical manufacturers, immunologists, occupational medicine but also the employer is necessary.
bioaerosols ; metalworking ; health effects
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Podaci o prilogu
86-87.
2015.
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objavljeno
Podaci o matičnoj publikaciji
Ninth Croatian Scientific and professional ssembly Air Protection 15
Doko Jelinić, Jagoda ; Žužul, Silva
Zagreb: Hrvatsko udruženje za zaštitu zraka (HUZZ)
Podaci o skupu
Croatian Scientific and professional Assembly Air Protection 15
predavanje
08.09.2015-12.09.2015
Poreč, Hrvatska