From NIOSH Criteria for a Recommended Standard, Occupational Exposure to Heat and Hot Environments, https://www.cdc.gov/niosh/docs/2016-106/pdfs/2016-106.pdf. Assumptions: workers are physically fit, well-rested, fully hydrated, under age 40, and environment has 30% humidity and perceptible air movement.

The ideal heat stress response plan would let workers regulate their own pace by “listening” to their bodies. Step 2 Clothing The Heat stress action chart on the awareness tool (page 7) assumes workers are wearing regular summer clothes (light shirt and pants, underwear, and, socks and shoes).

Heat Stress Table Be aware of the signs of heat exhaustion and heat stroke when working in hot, humid conditions. The table below shows the risks of exposure to high temperature and high humidity: Extreme Danger Heat stroke highly likely Muscle cramps, and/or heat exhaustion likely Extreme caution Muscle cramps and/or heat exhaustion possible

Heat stress is when the heat regulating mechanism of the body fails, resulting in increased body temperature above 37oC and affecting the individual’s physiological processes, resulting in strain on the body. Prickly heat is a condition where the skin that is persistently wetted by unevaporated sweat leads to formation of red papules.

contribute significantly to heat stress. Heat stress causes the body’s core temperature to rise. Effect on the Body The human body functions best within a narrow range of internal temperature. This “core” temperature varies from 36°C to 38°C. A worker performing heavy work in a hot environment builds up body heat.

Routinely check workers who are at risk of heat stress due to protective clothing and high temperature. Consider protective clothing that provides cooling. Know signs/symptoms of heat illnesses; monitor yourself; use a buddy system. Block out direct sun and other heat sources. Drink plenty of fluids. Drink often and BEFORE you are thirsty.

Heat stroke possible. 130º and up Heat stroke very likely. Caution: This chart provides guidelines for assessing the potential severity of heat stress. Individual reactions to heat will vary. Heat illnesses can occur at lower temperature than indicated on this chart. Exposure to full sunshine can increase values up to 15º F. Title. Author.

Conditions/actions listed below apply to unacclimatized workers. Never ignore symptoms. Refer to Heat Stress Awareness Guide for extra clothing and/or radiant heat conditions. Once cutting and folding is complete, insert wheel so that the coloured side shows through the cut-out wedge.

HIGH shade/indoors for short periods only. Drink chilled water between ends. Further increase water intake and ensure you keep well hydrated the day before a predicted hot shooting day. taking longer seated breaks in the shade between ends. Use a sun-blocking umbrella while walking to/from the target when shooting outdoors. Increase water intake.

The document provides a heat stress index chart that outlines recommended preventative measures and work-rest periods for different heat stress categories based on apparent temperature and relative humidity. The heat stress categories range from caution to …