[Analysis of the holter records in miners working at the deepest located work stations in copper mines of the Legnica-Głogow copper mining district].

Background: Microclimate at mining stations consists of numerous parameters, such as air temperature, humidity, air flow velocity and rock temperature. These parameters have an impact on thermal work conditions.

Materials And Methods: The investigation was performed on 71 operators of mining machines from sections G-6 (group I) and G-11 (group II), aged 23-50 years, with mining experience of 7-25 years.

[Evaluation of telemetric method in the assessment of heat stress of copper miners].

Background: The aim of this study was to assess the applicability of telemetric method in assessing heat stress of copper miners in a hot environment.

Material And Methods: The studies were conducted in 15 mining machine operators (working without air condition). The evaluated parameters were skin temperature, core temperature, heart rate and respiration rate.