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813 Construction Worksite Safety
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Health Hazards

The construction industry presents a wide range of health hazards that can lead to both acute injuries and long-term illnesses.

Worker cutting concrete
This worker is using hearing protection to protect against excessive noise.

The most common health hazard in construction is generally considered to be exposure to hazardous substances, particularly respirable crystalline silica. Below is a list of some common health hazards in construction, along with practical examples of each:

  • Exposure to Hazardous Substances: Contact with or inhalation of chemicals, dusts, or vapors can cause respiratory problems, skin irritation, or long-term disease.
    • Silica dust from cutting concrete or masonry
    • Asbestos in old insulation or tile
    • Solvent vapors from paints, adhesives, or sealants
  • Respiratory Hazards: Breathing in contaminated air can result in serious lung conditions and chronic illnesses.
    • Diesel exhaust fumes from machinery
    • Welding fumes from metalwork
    • Dust from drywall sanding or demolition
  • Biological Hazards: Contact with organisms or biological agents that can cause infection or disease.
    • Mold exposure during demolition of water-damaged structures
    • Histoplasmosis from bird or bat droppings in attics
    • Bloodborne pathogens during first aid or cleanup of bodily fluids
  • Noise Hazards Prolonged exposure to loud equipment can lead to noise-induced hearing loss.
    • Jackhammers, concrete saws, or pile drivers
    • Lack of hearing protection in high-noise areas
  • Heat and Cold Stress: Extreme temperatures can disrupt normal body function and cause severe illness or injury.
    • Heat stroke during summer roof work
    • Frostbite or hypothermia during winter outdoor construction
  • Ergonomic Hazards: Repetitive motions, awkward postures, and heavy lifting can lead to chronic musculoskeletal injuries.
    • Repeated kneeling while tiling floors
    • Lifting heavy drywall sheets without proper equipment
    • Using vibrating tools like jackhammers

Knowledge Check Choose the best answer for the question.

9-1. What is the most common health hazard in the construction industry?