Naslov
Microbial contamination of metalworking fluid bio aerosols and health risks to exposed workers

Autori
Bobić, Vedranka ; Lovrić, Blanka ; Butorac, Ana ; Perica, Kristina ; Cindrić, Mario ; Bačun-Družina, Višnja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Ninth Croatian Scientific and professional ssembly Air Protection 15 / Doko Jelinić, Jagoda ; Žužul, Silva - Zagreb : Hrvatsko udruženje za zaštitu zraka (HUZZ), 2015, 86-87

Skup
Croatian Scientific and professional Assembly Air Protection 15

Mjesto i datum
Poreč, Hrvatska, 08.09.2015. - 12.09.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
bioaerosols ; metalworking ; health effects

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA