safety 4 - Toxic and Biological Hazards How Hazardous is a...

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Toxic and Biological Hazards
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How “Hazardous” is a Substance? Negatively affect health (or physical state) Depends on Substance Dose Exposure Route of entry Individual resistance
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Environmental hazard ' Environmental hazard ' - is a generic term for any situation of events - threat to the surrounding environment. Hazards are reasonably likely to cause illness or injury in the absence of control.
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Types Physical Hazards Chemical Hazards Mechanical Hazards Biological Hazards Psychosocial Hazards
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Physical hazards Foreign objects that can cause injury such as metal, glass, hard plastic, pebbles, pits, shells, etc. If any of these hazards get into or on substance it is called contamination .
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Chemical hazards Toxic chemicals, natural toxins, food allergens, etc. If any of these hazards get into or on substances it is called contamination .
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Biological hazards Microorganisms such as bacteria, viruses, parasites, and fungi. If any of these hazards get into or on substances it is called contamination . Bacteria Virus Parasite
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Psychosocial Hazards Work related stress and angry, mental health disorder, Careless at work place etc. Stress Careless Angry
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Modes of Hazards Dormant - Potential situation - but do not affects people, property or environment. Potential
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This note was uploaded on 06/06/2011 for the course CHEM 3040 taught by Professor Reddy during the Spring '10 term at Taylor's.

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safety 4 - Toxic and Biological Hazards How Hazardous is a...

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