heat stress risk assessment

Topics: Heat, Sun, Temperature Pages: 8 (620 words) Published: January 28, 2014

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Temperature
Working outdoors, work place directly affected by the outdoor environment, excessive of temperature above 35*C, hot air in work place.

Humidity
Directly affected humid outdoor conditions, excessive of humidity above 80%, steam or heat producing source or equipment, completely wet skin condition of workers.

Heat Radiation
Working under direct sunlight,
sources / heat
generating facilities
(e.g. fire, welding,
hot surfaces and machinery) in close proximity to workers.

Workload
Heavy work load, carrying object over a long distance, intensive manual work.

clothing
Workers wearing thick or vapour impermeable clothing’s.

Acclimatization
workers not yet acclimatized to the hot work environment.

Medical Emergencies

Dehydration
Thirsty and weakness.
Cramps
Muscle cramps.
Heat exhaustion Nauseous, headachy, and giddiness.
Heat stroke
Confused, convulsions or unconsciousness, fatality.

Dehydration
Thirsty and weakness.
Cramps
Muscle cramps.
Heat exhaustion Nauseous, headachy, and giddiness.
Heat stroke
Confused, convulsions or unconsciousness, fatality.

Sunburn (Erythematic),
Tanning,
Premature Aging of the Skin,
Suppression of the Immune System,
Eye Damage
Skin Cancer.

Dehydration
Thirsty and weakness.
Cramps
Muscle cramps.
Heat exhaustion Nauseous, headachy, and giddiness.
Heat stroke
Confused, convulsions or unconsciousness, fatality.

Dehydration
Thirsty and weakness.
Cramps
Muscle cramps.

Heat exhaustion Nauseous, headachy, and giddiness.

Heat stroke
Unconsciousness, injury, falling from height, fatality.

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Take heed of weather report.
When the "Very Hot Weather
Warning" is in force, enhance
control measures, e.g. reschedule the work to cooler periods in the daytime (e.g. before 12:00 am or after 3:00 pm) and arrange the work at a cooler place; arrange more frequent rest breaks (e.g. appropriate break after 20-40 minutes of work); provide sheltered resting areas near the work location; provide workers with drinking water and train them to take plenty of water and stay alert of their physical Conditions, Eliminate or relocate the sources of hot air, Exhaust hot air out of the Workplace, Provide air conditioning to the workplace.

Take heed of weather report.
When the weather is humid,
enhance control measures as
mentioned above, Remove steam or moisture by exhausting it out of...
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