When working in spring and summer, it’s important to discuss heat stress with your crews. Any operation involving high temperatures, high humidity, or strenuous physical activity increases the risk of heat-related illness.

STAY SAFE IN THE HEAT

HEAT STROKE

Heat stroke is life-threatening. It occurs when the body’s temperature regulation fails, causing the core temperature to rise rapidly. Without prompt cooling and medical attention, heat stroke can result in brain damage or death.

Symptoms:

• Hot, dry, or flushed skin

• Dizziness

• Nausea or vomiting

• Headache

• Rapid pulse

• Loss of consciousness

First Aid:

• Call 911 immediately.

• Move the person to a shaded or cool area.

• Cool the body quickly with cool (not ice-cold) water, wet cloth, or a cool shower.

• Do not give fluids if the person is unconscious.

HEAT EXHAUSTION

Heat exhaustion is less severe but still requires prompt attention. It often occurs after prolonged exposure to heat and strenuous activity.

Symptoms:

• Pale, clammy skin

• Heavy sweating

• Extreme weakness or fatigue

• Headache or dizziness

• Nausea or vomiting

• Body temperature may be near normal

First Aid:

• Move the person to a cooler area and loosen clothing.

• Have them rest and sip water slowly.

• Monitor symptoms; seek medical attention if they do not improve or worsen.

• Avoid salt tablets—they can worsen dehydration and elevate blood pressure.

Prevention tips:

• Drink plenty of water throughout the day, even before feeling thirsty.

• Take frequent breaks in shaded or cool areas.

• Wear lightweight, light-colored, loose-fitting clothing.

• Acclimate gradually to working in hot conditions, especially if unaccustomed to heat.

• Be aware that alcohol, high blood pressure, and certain medications may increase risk.

SUNBURNS

Sunburn is a skin reaction to UV radiation, not heat. It can range from mild redness to blistering, fever, nausea, and long-term skin damage.

Key points about sunburn:

• Sunburn can occur even on cloudy or cool days.

• Water or shade may reduce, but not completely prevent, exposure to harmful rays.

• Redness appears several hours after exposure.

First aid for sunburn:

• Apply soothing lotions, wet compresses, or aloe-based ointments.

• Avoid further sun exposure until the skin heals.

• See a doctor for severe burns with blistering, fever, or extreme pain.

• Prevent sunburn by using sunscreen with SPF 30 or higher and reapplying frequently.

RESOURCES & REFERENCES

OSHA Heat Stress

https://www.osha.gov/heat-exposure