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Wyszukujesz frazę "work safety in electromagnetic fields" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Electromagnetic fields exposure assessment among workers at broadcast centers in Poland
Autorzy:
Politański, Piotr
Aniołczyk, Halina
Gadzicka, Elżbieta
Bortkiewicz, Alicja
Zmyślony, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2162494.pdf
Data publikacji:
2018-10-30
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
occupational exposure
television
electromagnetic fields
exposure assessment
radio
work safety in electromagnetic fields
Opis:
Background In the studies investigating the potential health effects of occupational exposure to electromagnetic fields (EMF), the key problem is the assessment of workers’ exposure. Electromagnetic fields exposure assessment requires determining maximum EMF levels, for the acute effect, and the dose absorbed, for the cumulative effect. A study was undertaken to determine EMF exposure in workers at broadcasting centers (BCs) in Poland. It was the first part of a comprehensive project on health effects of occupational exposure to EMF. Material and Methods The study was conducted in 4 selected BCs. Spot measurements of electric field strength (E), and the results of E measurements that were made in the past for occupational hygiene assessments, were used for determining workers’ exposure to electric field. The parameters considered were the maximum E value ($\text{E}_\text{max}$), the weighted average E value ($\text{E}_\text{avg}$) and the E lifetime dose ($\text{E}_\text{lifetime dose}$). Results In the group of workers examined, the E values did not exceed 16.7 V/m for Emax (the occupational exposure limit (OEL) for work shift in Poland is 20 V/m), 2.9 V/m for $\text{E}_\text{avg}$ and 1 500 000 (V/m)²×h for $\text{E}_\text{lifetime dose}$. Conclusions In view of the lack of dosimetry data, a retrospective assessment of BC workers’ exposure to very high frequency and ultra-high frequency EMF was conducted, which made it possible to estimate EMF lifetime dose for the workers. Since the EMF exposure levels at BCs did not exceed the admissible values, they can be considered safe to the workers’ health, according to the approach used for developing OELs for EMF exposure. Med Pr 2018;69(5):477–482
Źródło:
Medycyna Pracy; 2018, 69, 5; 477-482
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mitigation measures of electromagnetic field exposure in the vicinity of high frequency welders
Autorzy:
Zubrzak, Bartłomiej
Bieńkowski, Paweł
Cała, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2164007.pdf
Data publikacji:
2017-10-17
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
electromagnetic field
work safety in electromagnetic fields
occupational safety and health
EMF
dielectric welders
EMC
Opis:
Background Presented information about the welding process and equipment, focusing on the emission of electromagnetic field (EMF) with levels significant in terms of the labor safety regulations in force in Poland – the ordinances of the Minister of Family, Labour and Social Policy that came into force on June 27, 2016 and June 29, 2016 – emerged due to harmonization with European Union directive 2013/35/EU of 26 June 2013 of the European Parliament and the Council. They presented methods of determination of the EMF distribution in the welding machine surroundings and analyzed the background knowledge from the available literature. Material and Methods The subject of the analysis included popular high frequency welders widely used in the industry. Electromagnetic field measurements were performed in the welder operating place (in situ) during machine normal operations, using measurement methods accordant with labor safety regulations in force in Poland and according to the same guidelines, the EMF distributions and parameters having been described. Results They presented various scenarios of particular, real examples of excessive exposure to EMF in the dielectric welder surroundings and showed solutions, ranging from simple and costless and ending on dedicated electromagnetic shielding systems, which allowed to reduce EMF exposure in some cases of more than 80% (protection zone ranges) or eliminate dangerous zone presence. Conclusions It has shown that in the dielectric welders surrounding, significant EMF strength levels may be the result of errors or omissions which often occur during development, installation, operation or modification of welding machines. It has allowed to present the measures that may significantly reduce the exposure to EMF of workers in the welder surroundings. The role of accredited laboratories in helping in such cases was underlined. Med Pr 2017;68(6):693–703
Źródło:
Medycyna Pracy; 2017, 68, 6; 693-703
0465-5893
2353-1339
Pojawia się w:
Medycyna Pracy
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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