Occupational Health hazard in construction industry:

Workers in a construction site may be exposed to various hazardous substances and physical agents. Example: asbestos, lead, silica dust, organic solvents, sewer gases, welding fumes, radiations, noise and vibration.

Excessive exposures to these substances may result in acute injury, chronic illness, permanent disability or even death.

Loss of concentration at work and fatigue arising from poor health conditions may increase the risk of accidents.

Construction work is featured by high labor turnover, constantly changing work environment and condition on site and different types of work being carried out simultaneously by several contractors. These features would further increase the health risks of workers.