Dehydration Risk Assessment Tool

Understanding and managing heat stress on the worksite can be a challenge due to the many factors which influence the risk of heat stress. Additionally, even at cold temperatures workers can be at risk of dehydration. The following tool, adapted from the 2013 AIOH Heat Stress Guide, allows you to better understand the factors that increase the risk of heat stress on your workplace.

Workplace Hazards
The following factors influence thermal risk. Select which option best describes your worksite.
Sun exposure
Work area surface
Exposure period
Confined space
Task complexity
Stairs / Ladder
Distance from cool rest area
Distance from drinking water
Clothing (?)
Clothing
...
Understanding of dehydration
Air movement
Respiratory protection
Acclimatisation
Metabolic Work Rate
More physically taxing activities increase thermal risk. Select which option best describes your worksite.
Metabolic work rate (?)
Metabolic work rate
...
Apparent Temperature
Working at high apparent temperatures greatly increases thermal risk. Fill in the weather parameters to calculate apparent temperature, or enter the apparent temperature of your worksite directly.
Calculate apparent temperature
Temperature °C
Relative humidity %
Wind speed km/h
Or, enter apparent temperature directly
°C
Your Risk Assessment
Fill in all fields to obtain your thermal risk assessment.
Hydration
Thermal risk assessment tools are great for estimating thermal risk across your workplace. MX3 Hydration measurements allow you to personalise these risk assessments further by identifying workers which are atypically dehydrated or need extra attention.
Click on each hydration category to find out how this information could be applied on your worksite.
For increased accuracy with regard to personalized hydration assessment, MX3 recommends baselining of workers to establish their fully hydrated optimal hydration zone (OHZ).

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