Page 99 - Safety and health in construction
P. 99

Health hazards, first aid and occupational health services

                     17.6. Radiation hazards


                         Ionising radiations

                         17.6.1. Stringent  safety regulations  should  be drawn up and  enforced by the
                     competent authority with respect to construction workers engaged in the construction,
                     maintenance, renovation, demolition or dismantling of any buildings in which there is a
                     risk of exposure to ionising radiations, in particular in the nuclear power industry, and
                     in  work  using  radioactive  sources or inside structures  containing natural radioactive
                     materials.


                         17.6.2. Relevant provisions of the ILO code of practice on Radiation protection of
                     workers (Ionising radiations) should be followed.


                         Non-ionising radiations

                         17.6.3. Workers performing operations where they  are  exposed  to  non-ionising
                     radiations should be provided with adequate protection, and particularly in welding,
                     torch cutting and soldering operations, with eye and face protection.


                         17.6.4. For  the  purpose  of detecting pre-cancerous lesions of the skin, workers
                     continually working under non-ionising radiation exposure, including exposure to the
                     sun, should be under medical surveillance, where appropriate.



                     17.7. Heat stress, cold and wet conditions


                         17.7.1. Whenever heat stress, cold or wet conditions are such that they can lead to
                     impairment of health or extreme discomfort, preventive measures should be taken, such
                     as:

                     (a)  proper design of the workload and workstation, with special regard to workers in
                         cabins, and command or driving operations;

                     (b)  training, to enable detection of early signs of disorders;

                     (c)  supply of protective equipment;
                     (d)  routine medical surveillance.

                         17.7.2. When working in hot conditions, preventive measures to avoid heat stress
                     should include rest in cool areas and an adequate supply of drinking water.



                     17.8. Noise and vibration


                         17.8.1. Employers should provide protection for workers from the harmful effects
                     of noise and vibration from machines and work processes, by measures including:
                     (a)  replacing hazardous machines and processes by less hazardous ones;





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