[Measurement and hygienic evaluation of electromagnetic fields in the environment of diathermy, welding machines and induction heaters].
Measurements of electromagnetic field intensity at work-stations, as well as in the environment of 36 induction heaters, 24 welders and 6 diathermies have been taken. Maximum values of field E intensity at the work-stations with induction heaters ranged from below 2 V/m to 96 V/m, and for field H -- from below 0.5 A/m to 8.2 A/m. Maximum values of field E intensity at the work-stations with welders ranged from 25 V/m to 480 V/m. And Maximum values of field E with diathermy exceeded 300 V/m near electrodes. At the work-station of medical staff operating diathermy, the field intensity values ranged from 5.1 to 16 V/m. Basing on the obtained values of the e-m intensity at work-stations and in the environment of the mentioned instruments, protective zones ranges have been determined: intermediate, weerning and dangerous. In addition, effective e-m field exposure duration, at specific instruments, has been determined.
D003972:Diathermy / Q000295:instrumentation; D004566:Electrodes; D004574:Electromagnetic Fields; D055590:Electromagnetic Phenomena / Q000295:instrumentation; D006801:Humans; D008452:Maximum Allowable Concentration; D009787:Occupational Medicine; D011835:Radiation Protection; D014896:Welding
[Pomiary i ocena higieniczna pól elektromagnetycznych w otoczeniu diatermii, zgrzewarek i nagrzewnic indukcyjnych.