Evaluation of Heat Stress in Underground Mines

Table of Contents

Evaluation of Heat Stress in Underground Mines

Outline

Measuring Heat Strain

Ways to Evaluate Heat Stress

What Is PSI?

What is Too Hot?

Mine Rescue –A Pilot Study

Mine Rescue Pilot Study Individual Results – Low Stress Level

Mine Rescue Pilot Study Individual Results – High Stress Level

Mine Rescue Pilot Study Individual Results & the Environment

Mine Rescue Pilot Study - Individual Physiological Strain Index

Mine Rescue Pilot Study - Composite

What Did We Learn?

Current Work

Underground Miners at Barrick

Short Duration - High Exposures

Steady Exposure Rate

Hydration Effects – Mine Rescue Work

Limited Hydration – Mine Rescue Work

High Work Rate Mine Rescue

High Work Rate – Delta Temp

What Next?

What About Surface Mines?

Thank You! – For More Information:

Email: fvarley@cdc.gov

Home Page: http://www.usmra.com

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