Write a toolbox talk on Warm working conditions

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# HEAT EXHAUSTION Last Review: 08/01/2025 Date Posted: 09/09/2016 Working in the heat and doing heavy physical work can affect the body's cooling system. If your body is unable to cool itself, you can experience heat stress. If heat stress is not treated, it can develop into heat stroke, which can result in death. Heat Exposure applies to outdoor work environments from May 1 through September 30, when employees are exposed to outdoor heat at or above an applicable temperature listed in Table 1. WAC 296-62-[redacted postal code]. Remember, heat exposure can happen anytime of the year, as well as indoors. ## SIGNS AND SYMPTOMS • Shallow breathing • Increased breathing rate • Weak, rapid pulse • Cool, pale, clammy skin • Sweating • Weakness, fatigue, dizziness • Headache and nausea - Fainting • Muscle cramps ## TREATMENT • Move the worker to a cooler environment. If possible, lay the worker down, and remove or loosen tight-fitting clothing. • Cool the worker by sponging with cool water and fanning. Take care not to cool the worker too much. If the worker begins to shiver, stop cooling. - In most cases, the patient's symptoms will improve dramatically within 30 minutes. - Call 911 immediately if there are signs of Heat Stroke (confusion, agitation, absence of sweating or loss of consciousness). ## PREVENTION • - Acclimatize your body (gradually expose yourself to warmer work environments). • Drink plenty of water (one glass every 20 minutes). • Wear clean, light-colored, loose-fitting clothing made of breathable fabric. • Take rest breaks in a cool or well-ventilated area. • Take more breaks during the hottest part of the day or when doing hard physical work. Allow your body to cool down before beginning again. • Take care not to burn. This can occur in as little as 10 minutes • If desired, apply high factor sun-screen generously and frequently to any parts of the body exposed to the sun; SPF15 or above • Remember to - hydrate before yo…

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# SIGNS & SYMPTOMS OF HEAT-RELATED ILLNESS <table><tr><th>Heat-Related Illness</th><th>Symptoms and Signs</th></tr><tr><td></td><td>• Confusion</td></tr><tr><td></td><td>• Slurred speech</td></tr><tr><td></td><td>• Unconsciousness</td></tr><tr><td>Heat stroke</td><td>• Seizures</td></tr><tr><td></td><td>• Heavy sweating or hot, dry skin</td></tr><tr><td></td><td>• Very high body temperature</td></tr><tr><td></td><td>• Rapid heart rate</td></tr><tr><td></td><td>• Fatigue</td></tr><tr><td></td><td>• Irritability</td></tr><tr><td></td><td> Thirst</td></tr><tr><td>Heat exhaustion</td><td>• Nausea or vomiting</td></tr><tr><td></td><td> Dizziness or lightheadedness</td></tr><tr><td></td><td>• Heavy sweating</td></tr><tr><td></td><td>• Elevated body temperature or fast heart rate</td></tr><tr><td></td><td> Muscle spasms or pain</td></tr><tr><td>Heat cramps</td><td>• Usually in legs, arms, or trunk</td></tr><tr><td></td><td> Fainting</td></tr><tr><td>Heat syncope</td><td> Dizziness</td></tr><tr><td></td><td>• Clusters of red bumps on the skin</td></tr><tr><td>Heat rash</td><td> Often appears on the neck, upper chest, and skin folds</td></tr><tr><td></td><td>• Muscle pain</td></tr><tr><td>Rhabdomyolysis (muscle breakdown)</td><td>• Dark urine or reduced urine output • Weakness</td></tr></table> ## HEAT STRESS CONTROLS Engineering Controls - The best way to prevent heat-related illness for indoor workers is to make the work environment cooler. Wherever possible, use air conditioning to cool the work area. Alternatively, increase the general ventilation as much as possible by opening windows or doors. When available, use cooling fans to aid in increasing ventilation. Safe Work Practices - Employees working outdoors or indoors without air conditioning or ventilation take scheduled breaks in cool and shaded areas. Ensure plenty of cool water to drink, and take water breaks as needed. Immediately report any problems to a supervisor. Supervisors should consider scheduling the …

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CPWR TOOLBOX RESEARCH AND TRAINING THE CENTER FOR CONSTRUCTION TALK Hot Environments Exposure to extreme heat can result in illness and injury. Working in a hot environment can cause heat stroke, heat exhaustion, heat cramps, or heat rash. In addition, heat increases the risk of injury for workers because of sweaty palms, fogged-up safety glasses, and dizziness. Burns also can occur when a worker comes in contact with a hot surface or steam. ## Ben's Story Ben had been outside for several hours in extremely hot temperatures laying brick. He began to feel nauseated, his head ached, and he was sweating heavily. His supervisor noticed Ben was working much slower than usual and asked him how he felt. When he heard the symptoms, he called 911, took Ben to the shade, gave him a cool drink, and wetted him with cool water and ice. - Have you or someone you know ever experienced a heat-related illness on the job? If so, what happened? - What can you do to help avoid heat-related illnesses? ## Remember This ➤ Your employers should train you on heat hazards and their plan to prevent heat-related illnesses. - Take frequent breaks in the shade or in air conditioning. - Drink plenty of water - stay hydrated. During moderate work in the heat for less than 2 hours, you should drink 1 cup (8 ounces) of water every 15–20 minutes. If you will be sweating for several hours, you will need sports drinks. Avoid alcohol, caffeine, and sugar. ## Recognize the signs of heat illnesses in yourself and your co-workers: - Signs of heat stroke include - confusion ○ hot, dry skin or profuse sweating - slurred speech ○ unconsciousness - seizures ° high body temperature - Signs of heat exhaustion include - headache - nausea - dizziness ○ thirst 。 heavy sweating - weakness - o high body temperature ○ irritability ○ low urine output If a co-worker has signs of heat exhaustion: Call 911. Get the worker to shade and cool them down by removing clo…

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# TABLE OF CONTENTS (cont.) ## VIII. Objective The purpose of this REP is to prevent occupational exposure to conditions creating heat stress. This REP is targeted to keep employees from developing heat cramps, heat exhaustion, and heat stroke. Evidence from the Department of Labor, Centers for Disease Control, and NIOSH shows that elevated environmental temperatures cause hundreds of employees working both indoors and outdoors to experience heat-related illnesses and deaths annually. Excessive heat occurs from a combination of elevated temperatures, moderate or higher workloads, and high humidity. At certain levels of work, heat, and humidity, the human body cannot maintain a normal internal temperature and may experience a heat illness, including a fatal heat stroke. To prevent these illnesses and injuries, OSHA will utilize weather forecasts to determine days with hazardous heat conditions. The REP will be triggered when the National Weather Service forecasts the heat index to be at least 80° F as identified in the National Weather Service website. On those days OSHA will endeavor to ensure employers take appropriate precautions to address heat hazards. These heat illness precautions include: (1) training employees on the hazards of hot environmental temperatures, and procedures for responding to and reporting heat illness or injury (2) making appropriate first aid available, (3) having drinking water available, (4) having shade or a climate-controlled (i.e. air conditioning) area for rest breaks, (5) having a protocol to protect and acclimatize new workers and those who have just returned from an extended absence, because these workers are particularly vulnerable, and (6) having made provisions for prompt medical attention if a heat-related illness occurs. This instruction is provided to address the unsafe working conditions created by heat hazards and inappropriate safety procedures. ## IX. Scope of REP This instruction applies to indoor and outdoor wor…

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# Heat Stress and Working in Hot Conditions (cont.) - Hallucinations * Chills - Throbbing headache - High body temperature - Confusion/dizziness - Slurred speech ## Take the following steps to treat a worker with heat stroke: - Call 911 and notify the worker's supervisor. - Move the sick worker to a cool shaded area. ✡ Cool the worker using methods such as: - Soaking the worker's clothes with water. - Spraying, sponging or showering the worker with water. - Fanning the worker's body. Heat exhaustion is the body's response to an excessive loss of the water and salt, usually through excessive sweating. Workers most prone to heat exhaustion are those who are elderly, those who have high blood pressure, and those working in a hot environment. ## Symptoms of heat exhaustion include: - Heavy sweating - Extreme weakness or fatigue - Dizziness, confusion * Nausea - Clammy, moist skin - Pale or flushed complexion - Muscle cramps - Slightly elevated body temperature - Fast and shallow breathing - Take the following steps to treat a worker with heat exhaustion: - Have the worker rest in a cool, shaded or air-conditioned area. - Have the worker drink plenty of water or other cool, non- alcoholic beverages. - Have the worker take a cool shower, bath or sponge bath. A good heat-related illness prevention program would likely contain the following elements; however, each work environment or situation may not require all elements. 1. Responsibilities of the employer and employees regarding working in hot, humid environments. 2. Environmental factors and personal health factors that contribute to heat-related illnesses. 3. Procedures for measuring air temperature and documenting effects of other environmental factors (humidity, wind strength, work location) by determining the wet bulb globe tem- perature (WBGT) index or heat index using any tool or resource available, including the OSHA Heat Safety Tool smart phone…

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# PREVENTION MADE EASY (cont.) ## Hazard Identification (cont.) South Carolina OSHA Occupational Safety and Health Administration South Carolina Department of Labor, Licensing and Regulation ## Water. Rest. Shade Ensure that cool drinking water is available and easily accessible. (Note: Certain beverages, such as caffeine and alcohol can lead to dehydration.) Encourage workers to drink a liter of water over one hour, which is about one cup every fifteen minutes. Provide or ensure that fully shaded or air- conditioned areas are available for resting and cooling down. ## Acclimatization Acclimatization is a physical change that allows the body to build a tolerance to working in the heat. It occurs by gradually increasing workloads and exposure and taking frequent breaks for water and rest in the shade. Full acclimatization may take up to 14 days or longer depending on factors relating to the individual, such as increased risk of heat illness due to certain medications or medical conditions, or the environment. New workers and those returning from a prolonged absence should begin with 20% of the workload on the first day, increasing incrementally by no more than 20% each subsequent day. During a rapid change leading to excessively hot weather or conditions such as a heatwave, even experienced workers should begin on the first day of work in excessive heat with 50% of the normal workload and time spent in the hot environment, 60% on the second day, 80% on day three, and 100% on the fourth day For more information, visit: https://osha.llr.sc.gov # Modified Work Schedules Altering work schedules may reduce workers' exposure to heat. For instance: - Reschedule all non-essential outdoor work for days with a reduced heat index. • Schedule the more physically demanding work during the cooler times of day; • Schedule less physically demanding work during warmer times of the day; • Rotate workers and split shifts, and/or add extra workers. • Work/Rest cycles, …

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# HEAT STRESS ## Date Posted: 09/08/2016 Washington State can be known for its extreme temperatures. The temperature can change 20 degrees from one day to the next. Excessive heat can contribute to accidents in many ways. It becomes more difficult to concentrate on the job and this can lead to errors in judgment. It is important to be aware of the danger signs. When wearing restrictive clothing, even lower temperature can be dangerous. ## HEAT EXHAUSTION SYMPTOMS • Person is dazed, staggers, or becomes dizzy. • Person may present symptoms of nausea or vomiting and the person can feel chilly. • Person's face looks pale. • Person has weak pulse and body temperature is below normal. • Person is heavily sweating with clammy/moist skin. ## HEAT EXHAUSTION PREVENTION • Avoid ice water while working - Drink plenty of liquids, preferably water, every 15 minutes, even if you are not thirsty • Avoid heavy, fatty-type foods • Wear light colored clothing • Avoid fatigue; get plenty of rest REMEMBER: Alcohol consumption off work hours can still contribute to dehydration the next day. ## WHAT TO DO • Move person to a cooler place. Do not leave alone. • Loosen and remove heavy clothing that restricts evaporative cooling . If conscious, provide small amounts of cool water to drink • Remember three simple words: water, rest, shade. ## HEAT STROKE • More severe symptoms of heat exhaustion • Sweating may or may not be present • Red or flushed, hot, dry skin • Bizarre behavior • Mental confusion or losing consciousness ## WHAT TO DO • Call 911 for emergency medical assistance • Keep the victim lying down with their head lower than their feet. • Loosen the victim's clothing. • Give fluids if possible. Avoid ice water and alcohol. Salt solutions are best. Remember: Heat illness can be life threatening. The body is reacting to a life threatening situation. Do not take chances. Prevent Heat illness by being proactive.

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# HEAT-RELATED HAZARDS & CONTROLS Date Posted: 02/17/2024 Workers exposed to extreme heat or working in hot environments may be at risk of heat stress. Exposure to extreme heat can result in occupational illnesses and injuries. For example, heat stress can result in heat-related illnesses such as heat stroke, heat exhaustion, heat cramps, or heat rashes. Heat can also increase the risk of traumatic injuries as it may result in poor grip, fogged-up safety glasses, and problems with balance. According to the Bureau of Labor Statistics (BLS), high temperatures can be dangerous to people at work and can lead to injuries, illnesses, and even death. Exposure to environmental heat led to 37 work-related deaths and 2,830 nonfatal occupational injuries and illnesses involving days away from work in 2020. Thirty-three of the 37 fatal work injuries caused by exposure to environmental heat occurred in the summer months of June through September. On June 27, 2023, the Washington State Department of Labor & Industries (L&I) adopted updates to Outdoor Heat Exposure rules to prevent heat- related illness and reduce traumatic injuries associated with heat exposure. The adopted rules include requirements for shade, rest, and acclimatization and lowers the temperatures at which some preventive actions must be taken. ## WASHINGTON STATE ACTION LEVELS Clothing/PPE Worn Action Level Temperature Nonbreathing clothing, including vapor-barrier clothing or chemical-resistant suits 52° All other clothing 80° ## THE IMPORTANCE OF ACCLIMATIZATION Workers are at higher risk of heat-related illness if they are not acclimatized or used to the heat. Acclimatization typically takes 7-14 days to develop and can be lost after seven days away from working in the heat. A sudden increase in temperature does not allow time for workers to acclimate. Acclimatization is a process by which the physical processes of a worker's body adjust to the environment over some time. Based on data obtained from…

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OSHACK CARD™ # Protect Yourself Heat Stress When the body is unable to cool itself by sweating, several heat-induced illnesses such as heat stress or heat exhaustion and the more severe heat stroke can occur, and can result in death. ## Factors Leading to Heat Stress High temperature and humidity; direct sun or heat; limited air movement; physical exertion; poor physical condition; some medicines; and inadequate tolerance for hot workplaces. ## Symptoms of Heat Exhaustion • Headaches, dizziness, lightheadedness or fainting. • Weakness and moist skin. • Mood changes such as irritability or confusion. - Upset stomach or vomiting. ## Symptoms of Heat Stroke • Dry, hot skin with no sweating. - Mental confusion or losing consciousness. • Seizures or convulsions. ## Preventing Heat Stress - Know signs/symptoms of heat-related illnesses; monitor yourself and coworkers. - Block out direct sun or other heat sources. • Use cooling fans/air-conditioning; rest regularly. - Drink lots of water; about 1 cup every 15 minutes. • Wear lightweight, light colored, loose-fitting clothes. • Avoid alcohol, caffeinated drinks, or heavy meals. ## What to Do for Heat-Related Illness Call 911 (or local emergency number) at once. - While waiting for help to arrive: • Move the worker to a cool, shaded area. • Loosen or remove heavy clothing. • Provide cool drinking water. • Fan and mist the person with water. For more complete information: Occupational OSHA Safety and Health Administration U.S. Department of Labor www.osha.gov (800) 321-OSHA OSHA 3154-07R-06

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## Heat Kills Heat illness includes heat cramps, fainting. heat exhaustion, and heatstroke. Workers have died or suffered serious health problems from these conditions. Heat illness can be prevented. ## Know the symptoms of heat illness Watch for symptoms in yourself and your coworkers. If you feel any symptoms, tell your coworkers and supervisor immediately because you may need medical help. Know who to talk to and how to get help before you start each workday. Life-threatening symptoms High body temperature Red, hot, dry skin Confusion Convulsions Fainting Early symptoms Fatigue Heavy sweating Headache GET Cramps MEDICAL HELP Dizziness High pulse rate Nausea/vomiting ## Preventing Heat Illness Tell your supervisor if you are new to working in the heat or have had heat illness before. Stay alert to the weather During a heat wave you are at greater risk of getting sick. You need to watch yourself and coworkers more closely, and may need to drink more water, take more breaks, and use other measures. Drink enough cool, fresh water Drink at least one 8-ounce cup (3 cones) every 15 minutes during your entire work shift. Do not wait until you are thirsty to drink water. ## Do not drink alcohol. Avoid coffee. Choose water over soft drinks. Take rest breaks in the shade to cool down. Wear proper clothing Loose fitting, light-weight and light-colored cotton clothes, a wide-brimmed hat or cap, and a bandana. Talk to your doctor if you have illnesses like diabetes, are taking medicines or are on a low salt diet. ## Know Your Rights If you work outdoors, by law, your employer must provide you: • Enough cool, fresh drinking water throughout the day. • Access to shade or an equally cool spot for at least 5 minutes at a time. • Training on how to prevent heat illness and how to call for emergency services. For more information call the worker hotline at 1-[redacted phone] California Department of Industrial Relations STATE OF CALIFORNIA CAL O…

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PROTECT YOUR WORKERS FROM HEAT STRESS ## Develop an acclimatization plan Acclimatization is the result of beneficial physiological adaptations (e.g., increased sweating efficiency and stabilization of the circulation) that occur after gradual increased exposure to a hot environment. TIP 1 TIP 2 Gradually increase the time spent in hot environmental conditions over a 7-14 day period. For new workers, the schedule should be no more than 20% exposure to heat on day 1 and an increase of no more than 20% exposure on each additional day. ## TIP 3 ✓ they don't have heat-related symptoms. For workers who have had previous experience with the job, the acclimatization schedule should be no more than: <table><tr><th>DAY 1</th><th>DAY 2</th><th>DAY 3</th><th>DAY 4</th></tr><tr><td>50%</td><td>60%</td><td>80%</td><td>100%</td></tr><tr><td>EXPOSURE</td><td>EXPOSURE</td><td>EXPOSURE</td><td>EXPOSURE</td></tr></table> ## Set up a buddy system Check your workers routinely to make sure... - they make use of readily available water and shade. ## Schedule and encourage frequent rest breaks... ...with water breaks in shaded or air-conditioned recovery areas. ## Emphasize the need for appropriate clothing Encourage workers to wear clothing that is... light-colored breathable - loose-fitting ## Encourage workers to drink plenty of fluids... ...such as drinking small amounts of water before becoming thirsty. Cotton clothing can be soaked in water to aid cooling. Be aware that protective clothing or personal protective equipment may increase the risk of heat stress. mm During moderate activity in moderately hot conditions, workers should drink about... 1 cup every 15 to 20 minutes. Learn more about heat stress at: www.cdc.gov/niosh/topics/heatstress DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention National Institute for Occupational Safety and Health CDC Workplace Safety and Heath NIOSH

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# Protecting Workers from the Effects of Heat (cont.) ## What is Heat Illness? (cont.) South Carolina OSHA Occupational Safety and Health Administration South Carolina Department of Labor, Licensing and Regulation Heat Rash is the most common problem in hot work environments. Heat rash is caused by sweating and looks like a red cluster of pimples or small blisters. Heat rash may appear on the neck, upper chest, groin, under the breasts and elbow creases. The best treatment for heat rash is to provide a cooler, less humid work environment. The rash area should be kept dry. Powder may be applied to increase comfort. Ointments and creams should not be used on a heat rash. Anything that makes the skin warm or moist may make the rash worse ## Occupational Factors that May Contribute to Heat Illness • High temperature and humidity • Low fluid consumption • Direct sun exposure (with no shade) or extreme heat • Limited air movement (no breeze or wind) • Physical exertion • Use of bulky protective clothing and equipment For more information, visit: https://osha.llr.sc.gov # PREVENTION MADE EASY ## Program Elements Heat Illness Prevention Program Key elements include: • A Person Designated to Oversee the Heat Illness Prevention Program • Hazard Identification • Water. Rest. Shade Message • Acclimatization • Modified Work Schedules • Training • Monitoring for Signs and Symptoms - Emergency Planning and Response ## Designate a Person to Oversee the Heat Stress Program Identify someone trained in the hazards, physiological responses to heat, and controls. This person can develop, implement and manage the program. ## Hazard Identification Hazard identification involves recognizing heat hazards and the risk of heat illness due to high temperature, humidity, sun and other thermal exposures, work demands, clothing or PPE and personal risk factors. Identification tools include: OSHA's Heat Smartphone App; a Wet Bulb Globe Thermometer (WBGT) which is a…

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# Heat Index Chart (cont.) MNOSHA Instruction STD 1-4.2A March 1, 2021 # Appendix B # HEAT-RELATED INSPECTION QUESTIONNAIRE ## General • - Are there any recorded heat-related incidents on the OSHA 300 log? - о If yes, please list. • Is the work being done in the direct sun or a facility that is not air conditioned (e.g., warehouse)? . What are the potential sources of heat? . Is the heat stress potential regularly evaluated/monitored? - о If yes, please describe how (e.g., buddy system) • How long have employees worked at this task or work assignment? • Are employees required to wear protective clothing or equipment? ○ If yes, please describe. - о Are there additional requirements for employees working in PPE (e.g., impervious clothing)? • - What actions were implemented to prevent heat-related illnesses? • Is there a heat stress prevention program in place? - Has the employer taken steps to reschedule strenuous tasks for cooler parts of the day or days with reduced temperatures? - о Has the employer bought equipment with air-conditioned cabs? • Is there an acclimatization program? - о Are the employees acclimatized to the work environment? ## Water • Is drinking water available? - If yes, describe drinking water source and proximity to workers. • Are workers required to drink water or any other beverages when working under hot conditions? ○ - If yes, is there a specific amount to ensure employees are drinking enough water? ○ Is it enforced? - Are water coolers refilled throughout the day? ## Rest • Is there a Work/Rest Cycle in Place? - о If yes, describe the work/rest cycle (e.g., how many breaks do you take, when/where do you take breaks, how long is a typical break, etc.) - о Is there a knowledgeable person on site who is authorized to modify work tasks and work/rest schedules as necessary? Page 6 of 9