Thermal Hazards

Working in hot weather safety includes identifying Thermal hazards that may exist in your workplace. Identifying heat hazards in the workplace and taking adequate control measures to reduce risk, can help increase safety of workers.


Some questions that may help identify thermal hazards-

AIR TEMPERATURE

Does the air feel warm or hot?
Does the temperature in the workplace fluctuate during a normal working day?
Does the temperature in the workplace change a lot during hot or cold seasonal variations?

RADIANT TEMPERATURE

Is there a heat source in the environment?

HUMIDITY

Is there any equipment that produces steam?
Is the workplace affected by external weather conditions?
Are your employees wearing PPE that is vapour impermeable?
Do your employees complain that the air is too dry?
Do your employees complain that the air is humid?

METABOLIC RATE

Is work rate moderate to intensive in warm or hot conditions?
Are employees sedentary in cool or cold environments?

PPE

Is PPE being worn that protects against harmful toxins, chemicals, asbestos, flames, extreme heat, etc?
Can employees make individual alterations to their clothing in response to the thermal environment?
Is respiratory protection being worn?

WHAT DO YOUR EMPLOYEES THINK?

Do your employees think that there is a thermal comfort problem?

AIR MOVEMENT

Is cold or warm air blowing directly into the work space?
Are employees complaining of draught?