Working in the Heat
In Summer months unexpected heat wave conditions can hit the state with temperatures reaching upwards of 40° Celsius, temperatures often frequently surpass this range for long periods in the western part of the state.
A number of factors affect the impact of heat on the body, these are:
- Air temperature
- Humidity and air movement
- Radiant temperature
- Extreme climatic conditions
- The clothing worn
- The level of working activity
- The level of fluid loss and replacement, affecting water and salt balance
- Factors such as the use of certain medications, medical conditions, physical illness, obesity and pregnancy can also contribute to the onset of heat related illness.
Heat illness covers a range of medical conditions that can arise when the body is unable to properly cope with working in heat. These conditions include:
- Heat stroke – a life threatening condition that requires immediate first aid and medical attention
- Fainting
- Heat exhaustion
- Heat cramps
- Rashes (also called prickly heat)
- Heat fatigue
- Worsening of pre- existing illnesses and conditions.
Signs and symptoms of heat illness include feeling sick, nauseous, dizzy or weak. Clumsiness, collapse and convulsions may also be experienced as a result of heat illness.
Volunteers with these signs or symptoms need to seek immediate medical attention.
Preventing heat illness
The risks can be minimised by modifying volunteer activities, these may include:
- Rescheduling work so the hot tasks are performed during the cooler part of the day
- Wearing light clothing that still provides adequate protection
- Attempt to reduce the time spent doing hot tasks
- Take plenty of rest breaks in a cooler area
- In hot conditions drink a cup of water (about 200mL) every 15 to 20 minutes and don’t rely solely on soft drinks or caffeinated drinks
- Wear appropriate personal protective equipment (PPE) such as wide brim hat, loose fitting. Long sleeved collared (preferably cotton) shirt and long pants, sunglasses and sunscreen