| الوصف: |
Publisher Summary The purpose of a walk-through survey is to recognize and identify potential health and safety hazards in the workplace. The information gathered should serve as a solid basis for the quantitative evaluation of health hazards and the design of their control measures. A comprehensive preparatory survey consists of the following elements: examination of industrial processes, identification of hazardous agents, examination of the work environment, work practice, and worker-work interactions. Investigation of the industrial processes and their sequence assists in determining the source and nature of the exposure and hazards. Identification of hazardous agents is the second basic element of the walkthrough survey. Examination of raw materials, end products, intermediates, and by-products is essential in the identification of toxic chemicals. Examination of the work environment, including neighboring areas, is another important part of the walk-through survey. Factors such as the layout of work areas, environmental temperature, pressure and temperature of the industrial process, lighting, ventilation, and engineering control measures should be examined. The information base of any walk-through should include information about workers' activities, work practices and methods, the degree of physical effort involved in each activity, duration of exposure, and personal protective-equipment used. Workers can be classified into homogeneous groups of individuals bearing similar direct and indirect exposures. |