Risks Evaluation

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1. Understand the basic concepts in Risk Theory
2. Know the methodologies for identifying hazards, and for risk analysis and control, and select them adequately
3. Know the principles of accident prevention when involving hazardous substances
4. Identify confined spaces and associated risks
5. Understand the meaning of the flammability limits of substances
6. Know the detection apparatus and measuring instruments used to monitor hazardous atmospheres
7. Identify the intervention means, their location and scale
8. Identify the number or workers and the number and dimension of the exit routes
9. Identify the risk category of a building and suggest preventive measures
10. Understand fire chemistry and classification
11. Understand and apply risk assessment methods for ignition, fire and explosion
12. Know protection and prevention measures against fire and explosion


1. The concept of risk
2. Risk assessment: verification lists; preliminary analysis; by work place; causal tree analysis; risk chart
3. Methods of risk assessment: Regulation BS 8800; simplified method, matrix and William Fine methods; accident
4. Regulations for the prevention of serious accidents involving hazardous substances (Decree # 254/2007, from of
July, 2007)
5. Practical case – “Confined spaces”
6. Fire-fighting systems
7. Entities responsible for citizen safety
8. Individual protection equipment
9. Location and size of fire-fighting systems, evacuation, first aid, emergency exits, and of human resources
10. Organization of an emergency management plan
11. Chemistry, classification, prevention and protection against fire
12. Fire risk assessment: MESARI, Gretener and Gustav Purt
13. Ignition and explosion risks
14. Measures against explosion
15. Explosion risk assessment: DOW fire and explosion index

Teaching Methodologies

During class unfolding, following a theoretic-practical approach, several learning methodologies are used. Lectures are used to present concepts and definitions, regulations and legislation. This unit mostly deals with technical contents that will demand individual student work to facilitate learning and understanding. Questioning and demonstrative learning techniques will also be used with two purposes: i) exercise resolution in group; and ii) the application of procedures and interpretative analysis of requisites. Students are also involved in active learning through the individual resolution of problematic situations. Evaluation is organized by subunit through written test or written work. Evaluation methods by unit are: TR, multiple choice test; MAR, written test; CA, written work; OE, written work; RIE, written test.


Cabral, F. & Veiga, M., 2000. Higiene, Segurança, Saúde e Prevenção de acidentes de trabalho: um guia prático
imprescindível para a sua actividade diária. Verlag Dashofer, Lisboa. CD-ROM.
Freitas, L. C., 2006. Gestão de segurança e saúde no trabalho, Vol. 1. 4ª ed. Universidade Lusófona de
Humanidades e Tecnologias, D.L., Lisboa, 316 pp.
Freitas, L. C., 2006. Gestão de segurança e saúde no trabalho, Vol. 2, 4ª ed. Universidade Lusófona de
Humanidades e Tecnologias, D.L., Lisboa, 332 pp.
Freitas, L. C., 2008. Manual de segurança e saúde no trabalho.1ª ed. Sílabo, Lisboa, 734 pp.
Lemos, A. M. F. T. & Neves, I. C., 1991. Avaliação do risco de incêndio: método de cálculo. Universidade Técnica de
Lisboa, Lisboa, 79 pp.
Miguel, A. S. S. R. (2012) Manual de Higiene e Segurança do Trabalho. 12ª ed. Porto Editora, Porto, 480 pp.
Roxo M. M., 2009. Segurança e Saúde do Trabalho: Avaliação e controlo de riscos. 2ª ed. Almedina, Lisboa, 216 pp.



ECTS Credits



  • Teóricas - 35 hours