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PubMed1981

[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.

Diathermy↗
PubMed1997

Usefulness of elastica-van Gieson stain for the pathomorphological diagnosis of a cutaneous electric mark--a fatal electrocution case during arc welding.

Identification of an electric mark on a body is required for a precise diagnosis of electrocution at the time of forensic autopsy. We applied Elastica-van Gieson (EVG) stain as a means of obtaining the pathomorphological diagnosis of a cutaneous electric mark in relation to a fatal electrocution case. Using EVG stain, the characteristic findings of electric marks, such as elongation of basal-cell nuclei and vacuolation of cells within the epidermis, were clearly observed, while in addition, disarrangement of elastic fibers in the connective tissues within the dermis was also demonstrated. EVG staining was considered to be useful in enabling pathomorphological observations of a cutaneous electric mark to be made.

Accidents, Occupational↗