Heat’s Hidden Hazards: Impacts on Safety

By Abbie Geigle

When considering heat-related workplace hazards, common risks like dehydration and heatstroke come to mind. However, heat can affect safety in unexpected ways, leading to increased accidents, equipment malfunctions, and compromised decision-making.

The Hidden Hazards of Heat

Reduced Cognitive Function

High temperatures impair cognitive functions, leading to decreased concentration, slower reaction times, and poor decision-making. This increases the likelihood of accidents and errors, especially in precision-required jobs.

Equipment Malfunctions

Heat can cause machinery to overheat and fail. Electrical components might overheat, lubricants degrade faster, and metal parts expand, causing misalignment. These malfunctions pose risks to both equipment and workers.

Increased Physical Strain

Heat increases the body's physical strain, leading to fatigue, dizziness, and muscle cramps. This reduces a worker's ability to perform tasks safely, exacerbating pre-existing health conditions.

Compromised PPE

Extreme heat can degrade PPE materials, reducing their effectiveness. Wearing PPE in hot conditions can cause discomfort and heat stress, leading to improper use or removal.

Unexpected Ways Temperature Affects Safety

Chemical Reactions

Heat can accelerate chemical reactions, potentially causing fires, explosions, or toxic fumes. Proper storage and handling of chemicals in controlled environments are crucial.

Slip and Trip Hazards

Heat can cause condensation on floors and surfaces, creating slip and trip hazards. It can also warp flooring materials, posing a tripping risk.

Impact on Building Structures

Prolonged high temperatures can weaken building materials. Heat can cause expansion in materials like metal and concrete, leading to cracks and structural weaknesses.

Mitigating Heat Hazards

• Regular Breaks and Hydration: Encourage breaks and provide access to water.
• Temperature Monitoring: Identify and address hot areas promptly.
• Proper Maintenance: Regularly maintain machinery and equipment. (View OSHAcademy course 726 Introduction to Machine Guarding.) 
• Training and Awareness: Educate workers on heat stress signs and proper PPE use. (View OSHAcademy course 108 Personal Protective Equipment: Basic.)

Understanding and addressing these hidden heat hazards is crucial for ensuring a safe work environment.