Lecture industrial safety and environmental hygiene chapter 2 industrial hygiene

Chapter 2: INDUSTRIAL HYGIENE Vietnam National University – HCMC Ho Chi Minh City University of Technology Faculty of Resource & Environment Lecturer: Dr.. INDUSTRIAL HYGIENE OCCUPATION

Chapter 2:

INDUSTRIAL HYGIENE

Vietnam National University – HCMC

Ho Chi Minh City University of Technology Faculty of Resource & Environment

Lecturer: Dr TRAN BICH CHAU Email: tbchau@hcmus.edu.vn

02/2016

1 What is Occupational/Industrial Hygiene?

2 Four steps to create healthy working place (A.R.E.C):

– Anticipation – Recognition – Evaluation – Control

3 Factors affecting to industrial hygiene:

– Chemical hazards – Physical agents – Biological hazards – Ergonomic hazards

Industrial/Occupational Hygiene?

Interactions between people and the environment

INDUSTRIAL HYGIENE

OCCUPATIONAL HYGIENE

= 0r ≠

What is the diferrence between industrial hygiene and

occupational hygiene ???

recognizing, evaluating, and controlling workplace conditions that may cause workers' injury or illness

Berenice I Ferrari Goelzer

What is Industrial Hygiene?

What is Industrial Hygiene?

Industrial hygiene : the science of protecting and enhancing the health and safety of pepeole at work and in their communities

The American Board of Inductrial Hygiene

Key factors:

- Employee exposure to hazards

- Control for hazards to protect workers

Basic principles of Industrial Hygiene

1 Anticipationof potential risks

2 Recognitionof existing health hazards at the workplace

3 Evaluationof health risks

4 Contol of unacceptable risks

Task planning and hazard analysis of injury/illness, trend analysis, reported concerns

Inspections, exposure assessment, modeling, visual assessments, professional judgment

Engineering controls,

administrative

controls, substitution,

personal protective

equipment

Review products, purchases, projects, tasks, designs, experiments, etc.

Steps to Protect Employees

Factors affected to industrial hygiene

• Micro-climate

• Chemicals

• Noise

• Vibration

• Radiation

• Light

• Dust

• Harmful microorganism

• Ergonomic

• Chemical hazards

• Physical hazards

• Biological hazards

• Ergonomic hazards Factors affected to industrial hygiene

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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Environmental Factors or Stresses

Hazards

13

Chemical hazards

• Dusts, fumes, gases, mists

• Skin contact with oils, paints etc.

Physical agents

• Noise,

• Vibration

• Heat

• UV

Biological hazards

• Legionella

• Zoonoses

• Anthrax

Ex: Wastes from hospitals and

disease-causing organism s that could infect site personnel

Ergonomic hazards

• Manual handling

• Repetitive work

• Display screen equipment

An ergonomic hazard is a physical factor within the environment that harms the musculoskeletal system

Factors affected to industrial hygiene

• Micro-climate

• Chemicals

• Noise

• Vibration

• Radiation

• Light

• Dust

• Harmful microorganism

• Ergonomic

Meteorology:

A microclimate is the distinctive climate of a small-scale area, such as a garden, park, valley or part of a city The weather variables in a microclimate, such

as temperature, rainfall, wind or humidity, may be subtly different to the condition prevailing over the area as a whole and from those that might be reasonably expected under certain types of pressure

or cloud cover

What is microclimate?

Occupational Hygiene:

Microclimate is the physical state of the atmosphere

in the narrow space of the workplace including the factors temperature, humidity, radiant heat and speed

of air transport These factors must be guaranteed in certain limit, consistent with human physiology

What is microclimate?