Heat stress monitoring program Flashcards
Define the meaning of heat stress?
A combination of air temperature, thermal radiation, humidity, airflow and work load which stress the body as it attempt to regulate temperature.
Hot stress becomes excessive when the body’s capability to adjust is exceeded resulting in an increase of body temp. This can cause heat death.
Name the Factors that cause heat stress?
Thermal radiation
Ventilation airflow
Humidity
Air/sea water temperatures
Which are types of thermal radiation?
Sun heat source ( incinerators, engines, generators, laundry dryers.
Ventilation airflow factors
Forced air systems
Forces exhaust system( removes stagnant or increased concentration of hazardous fumes or contamination such as red devil blower
Humidity factors ?
Steam leaks
Bilge water
Condensation
Air/sea water temperature factors
refrigeration units
engines
generators
evaporators for fresh water consumption
What is acclimatization?
The act of becoming accustomed to temperature or new environment
The body becomes more efficient in coping with heat stress
How does acclimatization occurs ?
Gradually, usually after 3 weeks or more
current health status and use of medications that may alter physiological body changes
G6PD Sickle cell trait exercise and fluid intake medication alcohol intake lack of sleep drugs
What does PHEL stands for?
Physiological Heat stress level
What is the PHEL chart ?
A set of curves that compare the WBGT index and the degree of efforts or work rate to determine the maximum permissible exposure to the heat stress
Whos stablish the PHEL curves and work rates ?
The industrial hygienist
Which are the type of operations PHEL is assigned ?
Routine operations
non routine operations
ECC exercises
Heavy work load (assigned stay time using PHEL VI)
What is stay time ?
Maximum allow time personnel may work in heat stress conditions at a given work load
What is recovery time ?
Is define as a minimum of twice the stay time as determined by the PHEL chart or 4 hours whichever is shorter
What does fuel combustion gases can cause on personnel and what are the symptoms ?
Cause vasodilatation or peripheral blood vessels which results in further impartment of the cardiovascular system
watery eyes
dyspnea
tingling or numbness of the tip of the tongue, tip of the nose, finger tips or toes
mild sensations of alcohol intoxication
Who provides heat stress training and when?
The MDR for new personnel at indoc and annually there after ?
What are the trainings the MDR must conduct for personnel ?
Hazards symptoms of exposures heat stress first aid heat stress monitoring causes of head stress
Heat stress monitors must received training within how long ? and what training ?
12 weeks/ 3 months
Heat stress surveyor watch station 318 of the safety programs afloat personnel PQS NAVEDTRA 43704
What are the reporting methods for heat stress injuries ?
- Naval Safety Center (by safety Officer) using web enable safety system WESS
- Heat stress related injuries through the Naval disease reporting system NDRS
What heat stress reporting system should you used when NDRS is not available ?
The medical event report format
All heat stress surveys will be review for inaccuracies and QA checks by whom?
SMDR
All heat stress reports will be maintained by the SMDR for how long ?
1 year
What does a dry bulb thermometer do?
Measures the ambient air temp at work sites where heat stress conditions exist
