Presentation is loading. Please wait.

Presentation is loading. Please wait.


Similar presentations

Presentation on theme: "Introduction to INDUSTRIAL HYGIENE"— Presentation transcript:

1 Introduction to INDUSTRIAL HYGIENE

2 Industrial Hygiene “that 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 OSH Act of 1970 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 Environmental Factors or Stresses
Chemical hazards gases, vapors, dusts, fumes, mists, and smoke Physical hazards non-ionizing and ionizing radiation, noise, vibration, extreme temperatures and pressures

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

6 Routes of Entry Inhalation Absorption Ingestion airborne contaminants
penetration through the skin Ingestion eating drinking

7 OSHA Hierarchy of Control
Engineering controls Work practice controls Administrative controls Personal protective equipment (PPE)

8 Types of Exposure Acute Chronic
Short term period between exposure and onset of symptoms Chronic Long time period between exposure to an agent and the onset of symptoms

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

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

11 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

12 Exposure Limits Air Contaminants
OSHA Occupational Safety and Health Administration NIOSH National Institute of Occupational Safety and Health ACGIH American Conference of Governmental Industrial Hygienists

13 Exposure Limits Air Contaminants
OSHA PEL permissible exposure limit NIOSH REL recommended exposure level ACGIH TLV threshold limit value

14 Hearing Conservation Program
Mandatory at an 8-hour TWA > 85 dBA Exposure monitoring Audiometric testing Hearing protection Employee training Recordkeeping

15 Bloodborne Pathogens Bloodborne pathogens include 29 CFR 1910.1030
Hepatitis B HIV Others 29 CFR describes actions employers must take to reduce risk of exposure in the workplace


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

Download ppt "Introduction to INDUSTRIAL HYGIENE"

Similar presentations

Ads by Google