The basic contents of contemplating an occupational hygiene plan, as Chiavenato points out, are:
• Organized plan of provision of medical services, nursing, first aid, mobile emergency services.
• Adequate medical services: admission exams, first aid, removal and control of unsanitary areas, adequate medical records, periodic medical examinations, hygiene and health supervision, etc.
• Prevention of risks that threaten health: chemical risks, physical risks, biological risks.
• Services focused on prevention: programs aimed at improving unhealthy habits and lifestyles and explaining hygiene and health issues (1998, pp. 361-362).
The working conditions that significantly influence people's work are. • Environmental conditions of the work: lighting, temperature, noise, etc. • Time conditions: length of the working day, overtime, rest periods, etc. • Social conditions: informal organization, status, etc.
In general, considering the environmental conditions we have to:
• The lighting required is determined by the type of task being performed. In general, it is suggested that the lighting be sufficient, constant and uniform.
• Noise is considered an undesirable sound. Sound is characterized by its frequency and intensity, the frequency of vibrations is measured in cycles per second (cps) and the intensity is measured in decibels (dB).
Industrial safety involves the following requirements:
• Security is a line function and a staff function
• The working conditions determine the material preventive means.
• Security should not be limited to the production area
• Job security in certain organizations may mobilize elements or personnel for training.
• Active management support with comprehensive and intensive workplace safety programs.
• Safety instructions for each job
• Safety instructions to new employees
• Integrate and promote the safety awareness of all employees.
Many accidents are caused by factors that can be identified and eliminated to prevent further accidents. Some causes of accidents are:
• The object or substance that could be adequately protected and that is directly related to the injury.
• The unsafe condition is the physical or mechanical condition existing in the environment that makes the accident possible.
• The type of accident that is the form of contact between the object and the injured person.
• The unsafe act is the violation of the procedure accepted as safe.
• The personal factor of insecurity is any characteristic that allows the unsafe act: physical, mental, accidental or permanent disabilities.