8. Control of Substances Hazardous to Health
Regulations 2002 (as amended 2004) C.O.S.H.H) These require employers to assess the risks from hazardous substances and take appropriate precautions. Every year, thousands of workers are made ill by hazardous substances, contracting lung disease such as asthma, cancer and skin disease such as dermatitis
Q1
. What is the medical term used for a long term illness?

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chronic
Q2.
What is the medical term used for a short term illness?

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acute
Q3.
When combined they are said to be?

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synergistic
Q4
. These diseases cost many millions of pounds each year to?

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…………………………………………………………………………………
…………………………………………………………………………………
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…………………………… industry have to replace trained workers society in disability allowances and medicines individuals who may lose their jobs
Q5.
Chronic obstructive pulmonary disease (COPD) caused approximately how many work related deaths in the U.K?

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about 4000
Q6.
List seven different forms chemicals can be found in

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1.
2.
3.
4.
5.
6.
7.

solids liquids fumes dusts vapours mists gases

Q7.
List three particular substances that are covered by their own regulations and name the regs …………………………………………………………………………………
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lead asbestos radioactive substances
Hazardous substances can exist as: •
•

Solids -
Particulate solids include aerosols, dusts, fibres, smokes and fume.
Dusts and fibres are fine particles that are released into the air. liquids can exist as droplets or as finer sprays and mists in air or other gases.

•

Gases, are like air and behave in the same way.
Vapours are the gaseous forms of substances, which normally exist as a solid or liquid at room temperature.
These are sometimes wrongly referred to as fumes,

Under certain conditions, they can exist in more than one form at the same time (eg during paint spraying).
Classify the following hazardous substances

Paint……………………………………………………………………………
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liquid

Smoke…………………………………………………………………………
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solid
Cutting
Fluid……………………………………………………………………………
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liquid
Engine
exhausts…………………………………………………………………………
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gasses
Parasites…………………………………………………………………………
……………………………… solid Exposure
Substances can enter the body by:
• Breathing in gases, fumes, mist or dust
• Contact with the skin
• Swallowing
• Contact with the eyes
• Skin puncture Many thousands of substances are used at work but only about 500 substances have
Workplace Exposure Limits (WELs)
Q8.
Fumes, dust, gas or mist can enter the body by?

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breathing in gases,fumes or mist contact with skin