12 Ergonomic Adjustments That Reduce Injury Risk at Work

10. Environmental Factors - Temperature, Humidity, and Air Quality

Environmental factors including temperature, humidity, and air quality significantly impact worker comfort, health, and injury risk, though they are often overlooked in traditional ergonomic assessments. Research from the American Society of Heating, Refrigerating and Air-Conditioning Engineers indicates that temperature extremes can increase muscle tension and reduce dexterity, contributing to both acute injuries and chronic musculoskeletal disorders. The optimal office temperature range is 68-76°F (20-24°C) with relative humidity between 30-60%, conditions that maintain comfort without causing excessive sweating or shivering that can alter normal movement patterns. Studies published in Indoor Air Quality journal demonstrate that poor air quality can lead to fatigue, headaches, and reduced cognitive function that may increase accident risk and decrease awareness of proper ergonomic practices. Adequate ventilation is essential for maintaining oxygen levels and removing pollutants that can cause respiratory irritation and systemic fatigue. Additionally, noise levels should be controlled to prevent the postural changes and muscle tension that often accompany attempts to concentrate in noisy environments. Research from the World Health Organization shows that noise levels above 55 decibels can increase stress hormone production and muscle tension, contributing to headaches and musculoskeletal discomfort. Air circulation should be sufficient to prevent stuffiness without creating drafts that can cause muscle stiffness, and humidity levels should be maintained to prevent dry eyes and respiratory irritation that can impact worker comfort and performance.