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			 “Understandably, much of our safety concerns of late have been 
			focused on COVID-19, but we must not overlook other dangers in the 
			workplace. Excessive heat and humidity pose a serious threat to our 
			workers, claiming lives every year,” said Illinois Department of 
			Labor Director Michael Kleinik. 
 Millions of workers nationwide work in potentially dangerous heat 
			conditions, and as construction season ramps up in Illinois, working 
			in outdoor heat and humidity is a serious concern.
 
 Early summer is the time to focus on this threat. More than half of 
			outdoor, heat-related deaths occur in the first few days of working 
			in hot situations because the body needs to build a tolerance to 
			heat gradually. Workers that do not acclimatize to the heat and 
			humidity face a much greater risk factor for serious injury or 
			death.
 
			
			 
			Despite being preventable, heat illness kills an average of more 
			than 600 people each year, according to the Centers for Disease 
			Control and Prevention (CDC). The overall public health impact is 
			hard to estimate as heat-related illnesses, such as heat stroke and 
			heat exhaustion, are not required to be reported to public health 
			agencies.
 While heat affects everyone, it especially poses a danger to those 
			who must do physical labor in the heat and humidity – indoors or 
			outdoors. Heat stroke is the most serious heat-related health 
			problem and can be fatal if not recognized and treated quickly.
 
 Symptoms of heat stroke include:
 
 • Confusion
 • High body temperature (103°F or higher)
 • Hot, red, dry, or damp skin
 • Fast, strong pulse
 • Headache
 • Dizziness
 • Nausea
 • Confusion
 • Loss of consciousness (passing out)
 
			
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If a worker shows signs of heat stroke, consider it a medical emergency and call 
911. Assist the victim to a shaded, cooler place, and help lower their 
temperature with cool cloths or a cool bath.
 Heat stroke doesn’t arrive without warning signs. A worker suffering from heat 
exhaustion may experience dizziness, nausea, headache, heavy sweating, muscle 
cramps and weakness.
 
 Certain factors can make individuals more susceptible. People 65 and older, 
people who are overweight and people with underlying conditions such as heart 
disease or diabetes are more likely to fall victim to heat-related illness. 
Certain behaviors, such as drinking alcohol or taking medications can impede 
normal perspiration, the key to body temperature regulation, adding to the 
danger.
 
 Employers should train workers and supervisors to recognize the symptoms of 
heat-related illness and to immediately report anyone exhibiting heat-related 
distress. It is vital that cool water be made available and that workers are 
encouraged to drink small amounts on a regular basis to combat thirst. Regular 
meals and snacks are also important to keep electrolytes in balance.
 
 Schedule frequent rest periods with water breaks in shaded areas – 
air-conditioned areas if possible. Use fans where possible to help the body’s 
natural cooling system to work more efficiently.
 
 For the past 10 years, the federal Occupational Health and Safety Administration 
(OSHA) has waged a campaign to combat heat-related illness among workers. OSHA’s 
training materials provide a simple and effective three-word strategy that can 
save lives -- Water. Rest. Shade. 
https://www.osha.
 gov/heat/
 
 For more information on Illinois OSHA, a division of IDOL, visit 
https://www2.illinois.gov/idol/Laws-Rules/safety/Pages/default.aspx.
 
				 
			[Illinois Office of Communication and 
			Information] 
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