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Heat illness prevention training

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Workplace Heat Illness Prevention
SU Office of Environmental Health & Safety
Occupational Health & Safety Program
x3-0448
6/11
Outline
Outline
• Heat illness
– Risk factors
– How the body handles heat
– Types of heat illness
• Prevention of heat illness
• Emergency response procedures
• Supervisor guidelines
Cal/OSHA Standard
• 8 CCR 3395- Heat Illness Prevention
• Applies to outdoor places of employment with
heat illness potential
• Requirements
– Heat illness prevention training for supervisors and
employees
– Provision of water
– Access to shade
– Local procedures for heat illness prevention
Training
• Prior to work in warm weather, supervisors and
employees shall be trained on the following:
– The department’s heat illness prevention procedures
– Environmental and personal risk factors for heat illness
– The importance of consuming water throughout the
work shift
– The importance of acclimatization
– Common signs/symptoms of heat illness
– The importance of reporting sign/symptoms of heat
illness to the supervisor
– Emergency response procedures
Heat Illness
Risk Factors for Heat Illness
• Weather conditions
–
–
–
–
–
Temperature
Humidity
Air movement
Radiant heat (ex: sunshine)
Conductive heat (ex: ground)
• Higher intensity and/or duration of physical activity
• PPE/ clothing can be a factor (i.e., tyvek overalls)
Personal Risk Factors
•
•
•
•
•
•
Poor physical condition*
Age
Degree of acclimatization
Water consumption
Some medications*
Alcohol/ drugs
* Recommend checking w/ personal physician about heat illness risk
How the Body Handles Heat
• The body tries to keep a constant internal
temperature
• As internal temperature rises from activity,
the body cools itself by:
– Increasing blood flow to skin surface
– Releasing sweat onto skin surface
Heat Exhaustion
• Cause:
– Excessive loss of water and salt through sweat
• Signs & Symptoms:
–
–
–
–
–
Headaches, dizziness, lightheadedness or fainting
Weakness and moist skin
Muscle cramps
Mood changes such as irritability or confusion
Upset stomach or vomiting
Heat Stroke
• Cause:
– Total breakdown of body’s cooling system
• Signs & Symptoms:
–
–
–
–
Sweating stops-- skin is hot, red, and dry
Mental confusion, losing consciousness
Fainting
Seizures or convulsions
Treat as a medical emergency! Can be life
threatening.
Emergency Response Procedures
For any of the previously mentioned symptoms:
• Immediately call 911 or 9-911 (from a campus phone) OR transport to
Stanford Hospital Emergency Room
• While waiting for help:
–
–
–
–
–
Move victim to cool area
Give small cup of water (if conscious and not nauseous)
Loosen and/or remove clothing
Fan and mist the person w/ water
Apply a water-soaked towel (or ice pack wrapped in towel) to head and
ice pack to armpits
• Contact supervisor immediately
• Anyone with symptoms must never be sent home or left unattended
without a medical evaluation
• SUOHC follow-up for employees evaluated for heat illness
Prevention of Heat Illness
Access to Water
• Access to sufficient
amounts of cool
drinking water shall be
available at all times.
• Recommend
consuming at least
four cups per hour for
the entire shift.
Access to Shade
• A shaded rest area shall be
provided as close as practicable
to the work area.
– Refer to your departments local
procedures for accessing shade
• As needed, take frequent cooldown breaks in the provided
shade.
Supervisor Guidance
Work Planning and Supervision
• Assess conditions
– Weather forecasts http://nws.noaa.gov
– Current weather http://weather.stanford.edu
* Note: high humidity drives up the heat
load
• For warmer periods:
– Schedule outdoor work during cooler
parts of the day
– For most strenuous tasks, plan a staff
rotation
Work Planning and Supervision
• Worker acclimatization
– People adapt to outdoor temperature increases
within 4-14 days. To minimize the risk of heat
illness:
• Adjust work schedules and intensities during a twoweek period
• New employees or those returning from extended
leaves – acclimatization is especially important
– May not be adapted to local weather or work intensity
– Be extra vigilant with these employees
Work Planning and Supervision
• For outdoor temperatures ≥85°F, supervisors shall ensure:
– Shade is present for employee rest breaks.
• When a worker has brief periods of outdoor work without nearby shade, the
employee shall be instructed on how he/ she will be able to quickly access
shade as needed for heat illness prevention
• If it is not safe or feasible to provide shade, document why the shade cannot be
provided and what steps will be taken to provide shade upon request or an
alternative cooling measure with equivalent protection.
– Staff are reminded throughout the day to drink plenty of water and to take
cool-down breaks in the shade (when they feel the need to do so)
– Effective means for employees to contact the supervisor and emergency
services
– Regular monitoring of employees for alertness and signs/symptoms of
heat illness
– Close supervision of new employees
Written Procedures
•
•
The minimal procedures are listed in the SU Heat Illness Prevention guidance.
These steps detail how your personnel will locally:
•
Provide supervisor and employee training
•
Provide access to water & shade
•
Monitor employees and report signs/symptoms of heat illness
•
Respond to heat illnesses without delay, provide first aid and emergency services.
•
Provide clear and precise directions to the worksite.
Train all supervisors and employees on these procedures.
•
•
Document training
Maintain the procedures on-site or close to the site, so that it can be made
available to representatives of Cal/OSHA upon request.
Summary of Supervisor
Responsibilities
• Obtain heat illness prevention training
• Be aware of your staff’s heat stress potential
• Develop and train staff on written local heat illness prevention
procedures
• Provide access to water and shade
• Plan and manage work activities accordingly to reduce the risk of heat
stress
• Be able to recognize any warning signs of heat illness
– Promptly respond to symptoms of heat illness!
For Additional Information
•
Visit the Cal/OSHA Heat Illness websites:
– http://www.dir.ca.gov/DOSH/HeatIllnessInfo.html
– http://www.99calor.org/english.html
Thanks for your attention!
Contact EH&S at 723-0448 if you
have any questions.
http://ehs.stanford.edu
http://iipp.stanford.edu
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