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1 Introduction to INDUSTRIAL HYGIENE. 2 Industrial Hygiene uthat science or art devoted to the anticipation, recognition, evaluation, and control of those.

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Presentation on theme: "1 Introduction to INDUSTRIAL HYGIENE. 2 Industrial Hygiene uthat science or art devoted to the anticipation, recognition, evaluation, and control of those."— Presentation transcript:

1 1 Introduction to INDUSTRIAL HYGIENE

2 2 Industrial Hygiene uthat science or art devoted to the anticipation, recognition, evaluation, and control of those environmental factors or stresses, arising in or from the workplace, that may cause sickness, impaired health and well-being, or significant discomfort and inefficiency among workers

3 3 OSH Act of 1970 u The purpose of the OSH Act 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.

4 4 Environmental Factors or Stresses uChemical hazards –gases, vapors, dusts, fumes, mists, and smoke uPhysical hazards –non-ionizing and ionizing radiation, noise, vibration, extreme temperatures and pressures

5 5 Environmental Factors or Stresses uErgonomic hazards –workstation design, repetitive motion, improper lifting/reaching, poor visual conditions uBiological hazards –insects, mold, yeast, fungi, bacteria, and viruses

6 6 Routes of Entry uInhalation –airborne contaminants uAbsorption –penetration through the skin uIngestion –eating –drinking

7 7 OSHA Hierarchy of Control ÊEngineering controls ËWork practice controls ÌAdministrative controls ÍPersonal protective equipment (PPE)

8 8 Types of Exposure uAcute –Short term period between exposure and onset of symptoms uChronic –Long time period between exposure to an agent and the onset of symptoms

9 9 Types of Air Contaminants uParticulates –dusts, fumes, mists, and fibers –non respirable particles > 10 m in diameter –respirable particles < 10 m in diameter

10 10 Types of Air Contaminants uFumes –volatilized solids condenses in cool air < 1.0 m in diameter –hot vapor + air (reaction with) = oxide uMists –suspended solid droplets –generated by a condensation of liquids from a vapors to a liquid state

11 11 Types of Air Contaminants uFibers –solid, slender, elongated structures –length several times the diameter uGases –formless fluids that expand to occupy a space arc-welding, internal combustion engine exhaust air u Vapors –liquid changed to vapor organic solvents

12 12 Exposure Limits Air Contaminants uOSHA –Occupational Safety and Health Administration uNIOSH –National Institute of Occupational Safety and Health uACGIH –American Conference of Governmental Industrial Hygienists

13 13 Exposure Limits Air Contaminants uOSHA –PEL permissible exposure limit uNIOSH –REL recommended exposure level uACGIH –TLV threshold limit value

14 14 Hearing Conservation Program uMandatory –at an 8-hour TWA > 85 dBA uExposure monitoring uAudiometric testing uHearing protection uEmployee training uRecordkeeping

15 15 Bloodborne Pathogens uBloodborne pathogens include –Hepatitis B –HIV –Others u29 CFR –describes actions employers must take to reduce risk of exposure in the workplace

16 16 Industrial Hygiene u ANTICIPATION u RECOGNITION u EVALUTION u CONTROL

17 17 Consultation Assistance uFor Industrial Hygiene help, contact The Office of Safety & Health Consultation at (302) uOr uClick on the Consultant staff link on the Main Page to a Consultant.


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