This presentation introduces industrial hygiene, which involves recognizing, evaluating, and controlling workplace hazards such as exposure to chemicals, noise, heat, and vibration. It was presented by three students and discusses the key aspects of industrial hygiene including the OSHAct of 1970, common environmental hazards, the OSHA hierarchy of controls, types of exposures and air contaminants, and the importance of protection and hygiene surveys. The benefits of industrial hygiene are highlighted as keeping known hazards under control, establishing standards, preventing accidents, and increasing worker morale and production while decreasing costs.

1. Welcome To Our Presentation
The Presentation On
“INDUSTRIAL HYGIENE”
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2. Prepared By:
Md. Feroz Mahmud ID:130103023 (Group Leader)
Md. Neser Uddin ID:120103025
Md.Salauddin al mamun ID:090103022
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3. Industrial Hygiene
Industrial hygiene is defined as the recognition,
evaluation and control of workplace hazards.
 Its origins are based on limiting personal
exposures to chemicals, and have evolved to
address the control of most other workplace
hazards including over-exposure to noise, heat,
vibration, and repetitive motion
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4. OSHAct of 1970
 The purpose of the OSHAct is to
“assure so far as possible every working,
man and woman in the nation safe and
healthful working conditions and to
preserve our human resources.”
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5. Environmental
Factors or Stresses
• gases, vapors,
dusts, fumes,
mists, and
smoke
Chemical
hazards
Physical hazards:
radiation, noise,
vibration, extreme
temperatures and
pressures
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6. Environmental
Factors or Stresses
Hazards
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7. OSHA Hierarchy of Control
Engineering controls
Work practice controls
Administrative controls
Personal protective equipment (PPE)
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8. Types of Exposure
 Acute
 Short term period between exposure and onset of
symptoms
 Chronic
 Long time period between exposure to an agent and the
onset of symptoms
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9. Types of Air Contaminants
 Fibers
 solid, slender, elongated structures
 length several times the diameter
 Gases
 formless fluids that expand to occupy a space
 arc-welding, internal combustion engine exhaust air
 Vapors
 liquid changed to vapor
 organic solvents
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10. Protection
 The selection of appropriate personal protective
equipment for exposure control often requires both
an understanding of the limitations of the
equipment, and the expected exposure parameters
as determined by an industrial hygiene evaluation.
Engineering controls are considered the preferred
method of control, but personal protective
equipment plays an important role for health,
safety, and rescue. The potential for misuse or
misapplication of these devices should be
evaluated.
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11. USES OF INDUSTRIAL HYGIENE SURVEYS
 To determine the workers exposure to toxic
agents.
 To check the effectiveness of technical services
e.g. Ventilator systems in a plating shop.
 To determine if complaints are justified.
 To have base line data.
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12.  To compare the standard of working
environment
 To assess fire/explosion level of flammable
/explosive substances.
 To have safe and healthy work environment
 To find the effectiveness of a new machine
process or systems
 To protect the workers health and well being
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13. BENEFITS
 You can keep the known hazards under control
 Find causes
 Establish Hygiene Standards
 Make the work environment ambient
 Prevent accidents
 Increase morale of workers
 Eco friendly manufacturer

14. ECONOMIC BENEFITS
Increased production.
Less expenditure on curative
aspect on the part of sick
people.
Less absenteeism.

15. PEOPLE CONTRIBUTING TO INDUSTRIAL HYGIENE
 Occupational Physician.
 Industrial Hygienist.
 Safety Officer.
 Occupational Health Nurse.

16. Thank To All Of You.
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