Understanding Biosafety and Biosecurity Principles
Biosafety and Biosecurity are essential concepts in safeguarding against biological hazards. This article explores the definitions of hazard, threat, and risk, emphasizing the importance of managing risks associated with biological materials through biosafety and biosecurity measures. Learn about the difference between hazard categories like physical, chemical, and biological, as well as the significance of biorisk management in laboratory settings.
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Biosafety Biosafety Introduction: Definitions and concepts PROF.DR.BAYDAA HAMEED ABDULLAH
Hazard, Threat, and Risk Hazard, Threat, and Risk A hazard is an object that can cause harm A threat is a person who has intent and/or ability to cause harm to other people, animals, or the institution A risk can be based on either a hazard and/or a threat
What is Risk? What is Risk? The likelihood of an undesirable event happening, that involves a specific hazard or threat and has consequences Risk:- A combination of the probability of occurrence of harm (injury, illness, death, damage etc) and the severity of that harm. risk = probability disutility
Hazard:- A source, situation, or act with a potential for causing harm. At workplace categorized: Physical, Chemical and Biological 1- Chemical:- a-Smoke. b- Toxic material. 2-Physical:- a-Moving road tankers. b- Noise. 3-Biological:
Biohazard: The potential source of harm caused by biological agents or toxins.
BIOSAFETY is protecting people from dangerous pathogens BIOSECURITY is protecting pathogens from bad people
Biosafety:-The set of containment principles, technologies and practices that are implemented to prevent exposure to biological agents . and toxins, or their accidental release. Biosecurity:-The set of measures taken to limit the threat posed by sudden widespread disease or biological contamination, as from biological warfare, or pandemic outbreaks
BIORISK BIORISK Risk associated with biological materials BIOSAFETY + BIOSECURITY = BIORISK
Laboratory Laboratory Biosafety Biosafety Containment principles, technologies, and practices implemented to prevent unintentional exposure to pathogens and toxins, or their unintentional release.
Laboratory Laboratory Biosecurity Biosecurity Protection, control and accountability for valuable biological materials within laboratories, in order to prevent their unauthorized access, loss, theft, misuse, diversion or intentional release.
Laboratory Acquired Infections (LAI) Infections (symptomatic / asymptomatic) Acquired through laboratory related activities as a result of working with infectious agents 12
Causes of Laboratory Exposures Causative or defined event 20% equipment failure 80% human factors 13
Causes of Laboratory Exposures Top 4 accidents resulting in infection 15
Routes of Laboratory Exposures INGESTION Consumption of a substance by an organism INOCULATION Act of introduction of a substance into the body 17
Routes of Laboratory Exposures CONTAMINATION Presence of a minor and unwanted substance or impurity in the skin or mucous membrane INHALATION Act of drawing air or other substances into the lungs 18
Laboratory safety symbols and hazard sign A-Laboratory safety symbols 1- Green Eyewash Sign:- this sign to indicate the location of an eyewash station.
2-Green First Aid Sign: Lab Safety Signs .Use this symbol to identify the location of a first aid station
4-Blue Respiratory Protection:- This sign tells you respiratory protection is required
4- blue cloves.This sign means you need to wear gloves or other hand protection. 5-Blue Protective Clothing:- This symbol indicates mandatory use of protective clothing
B- Hazard Symbols :- 1-Health Hazard: A cancer-causing agent (carcinogen) or toxicity substance to respiratory system , reproductive system and organs.
2-Flame: Flammable materials or substances liable to self ignite when exposed to water or air (pyrophoric).
3.Corrosion: Materials causing skin corrosion/burns or eye damage on contact.
4.Flame Over Circle: Identifies oxidizers. Oxidizers are chemicals that facilitate burning or make fires burn hotter and longer 5.Skull and Crossbones: Substances, such as poisons and highly concentrated acids, which have an immediate and severe toxic effect (acute toxicity).
