- Tytuł:
- The efficiency of nuisance relief by filtering facepiece respirators used by workers exposed to agricultural odours
- Autorzy:
-
Okrasa, Małgorzata
Majchrzycka, Katarzyna
Szulc, Justyna
Pielech-Przybylska, Katarzyna - Powiązania:
- https://bibliotekanauki.pl/articles/22639563.pdf
- Data publikacji:
- 2023-12-15
- Wydawca:
- Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
- Tematy:
-
agriculture
microbiological contamination
odour nuisance
filtering facepiece respirators
Time4Mask
worker safety and well-being - Opis:
- Background The study aimed to evaluate the effectiveness of filtering facepiece respirators (FFRs) in reducing odour nuisances in agricultural work environment. Additionally, an assessment was conducted on the microbiological contamination of FFRs and the functionality of Time4Mask application in enhancing workplace safety. Material and Methods Two types of FFRs were used for the study: with absorbing properties and reference ones. The research was carried out in 6 livestock rooms during a 1-week period in early spring (February–March 2021) on a farm in central Poland. The microclimate conditions (thermoanemometer), and particulate matter concentrations (laser photometer) were assessed. Additionally, the odour content in the studied rooms and the breathing zone of FFR users (gas chromatography with mass spectrometry) were evaluated. The number of microorganisms on the respirators was determined (cultivation method), followed by their identification (biochemical tests, taxonomic keys). Breakthrough curves were determined for both FFR types to assess absorption capabilities. Results The average temperature in the livestock rooms was about 13°C, relative humidity – 53%, air flow velocity – 0.21 m/s, and particulate matter concentration – 0.216 mg/m3. A significant variety of odorants was found in the environment and the breathing zone under the FFRs. Bacterial counts ranged between 2.4 × 101 and 2.6 × 102 CFU/cm2, fungi between 3.2 × 100 and 5.4 × 101 CFU/cm2, xerophilic fungi from 4.4 × 100 to 4.0 × 101 CFU/cm2, mannitol-positive staphylococci between 1.6 × 101 and 1.0 × 102 CFU/cm2, and haemolytic staphylococci from 2.2 × 101 to 4.5 × 101 CFU/cm2, depending on the respirator type. Respirators were colonized by bacteria from the genera: Bacillus, Staphylococcus, actinobacteria Streptomyces sp., and fungi: Candida, Absidia, Aspergillus, Mucor, and Penicillium. Respirators with absorbing properties had over 8-times longer breakthrough time than reference ones. Conclusions Respirators with activated carbon effectively improved work comfort when exposed to odours. Due to growth of microorganisms in the respirator materials, periodic replacement is necessary. It is crucial to provide workers with information about the safe-use time of respirators, considering environmental conditions. This is achievable using modern IT tools like Time4Mask application.
- Źródło:
-
Medycyna Pracy. Workers’ Health and Safety; 2023, 74, 5; 363-375
0465-5893
2353-1339 - Pojawia się w:
- Medycyna Pracy. Workers’ Health and Safety
- Dostawca treści:
- Biblioteka Nauki
Artykuł