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Nível de oxigénio em espaços confinados: risco real ou risco percecionado
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Advisor(s)
Abstract(s)
É vulgar ouvir-se dizer que os espaços confinados são locais potencialmente perigosos. A confirmar-se, é importante compreender o porquê da afirmação. Em análise, estará ao longo da dissertação o que se considera seguro em relação ao nível percentual de oxigénio e a comparação entre o risco percecionado e o risco real, enquadrado na temática dos espaços confinados.
Com a dissertação pretendo demonstrar que os espaços confinados, só por si, só serão perigosos quando se subestimarem questões tão simples como por exemplo a avaliação e interpretação do nível de oxigénio atmosférico que deve exisitir dentro de um espaço confinado, de forma a que o mesmo seja considerado seguro.
A identificação dos perigos e a avaliação dos riscos fazem parte do vocabulário geral de qualquer empresa e em particular do dia-a-dia do técnico de segurança, no entanto o que se consegue retirar da identificação dos perigos e da avaliação dos riscos dependerá em muito da perceção, do conhecimento e da experiência de quem irá realizar o trabalho de identificar e avaliar os perigos que irá encontrar, para posteriormente associar os riscos que possam estar inerentes a um determinado perigo.
Fico esperançado que esta análise permita a redução de falsas garantias de segurança, as quais possam comprometer a salvaguarda das partes envolvidas, sejam gestores, chefes de equipa, trabalhadores, familiares ou amigos.
Os acidentes laborais são um flagelo da atividade laboral e afetam todos os que direta ou indiretamente se relacionam com eles. Verifica-se que em muitos dos acidentes, as causas são simples e que a antecipação de uma consequência devastadora resultado de um acidente grave ou mortal, estava ao alcance de todos. Para isso não ser apenas e só um desejo das pessoas ligadas à segurança laboral, é necessário parar, pensar e acima de tudo não se assumir a presunção de princípios que, em alguns casos, estão assentes em ideologias e práticas desatualizadas.
It is usual to say and hear that confined spaces are potentially dangerous places. If confirmed, it is essential to understand the reason for that statement. It is therefore fundamental to analyse what is considered safe in relation to the percentage of oxygen, and to understand the difference between the perceived risk and the real risk. The aim of this thesis is to demonstrate that a confined space will be dangerous when underestimating such simple aspects as the assessment and the interpretation of the atmospheric oxygen level, which must exist within a confined space to be considered as safe. Hazard identification and risk assessment are part of the general vocabulary of any company, and in particular of the day-to-day work of the safety technician. However, what can be learned from hazard identification and risk assessment will depend greatly on the perception, knowledge and experience of the one who will identify and assess the hazards that are encountered, and that would be inherent to a particular hazard. It is hoped that this analysis will not allow false assurances to be given to safety, which may endanger all parties, whether they are executors, orderlies, team chiefs, managers, family members or friends. Accidents at work are a scourge of the working activity, and it affects all those that are directly or indirectly related to them. It is known that in many accidents, the causes are simple and it was within the reach of all to anticipate the devastating consequences that result from a serious or fatal accident. For this not to be only a mirage for people connected to work safety, it is necessary to stop, think and above all not to assume the presumption of principles that in some cases are based in old ideologies and practices.
It is usual to say and hear that confined spaces are potentially dangerous places. If confirmed, it is essential to understand the reason for that statement. It is therefore fundamental to analyse what is considered safe in relation to the percentage of oxygen, and to understand the difference between the perceived risk and the real risk. The aim of this thesis is to demonstrate that a confined space will be dangerous when underestimating such simple aspects as the assessment and the interpretation of the atmospheric oxygen level, which must exist within a confined space to be considered as safe. Hazard identification and risk assessment are part of the general vocabulary of any company, and in particular of the day-to-day work of the safety technician. However, what can be learned from hazard identification and risk assessment will depend greatly on the perception, knowledge and experience of the one who will identify and assess the hazards that are encountered, and that would be inherent to a particular hazard. It is hoped that this analysis will not allow false assurances to be given to safety, which may endanger all parties, whether they are executors, orderlies, team chiefs, managers, family members or friends. Accidents at work are a scourge of the working activity, and it affects all those that are directly or indirectly related to them. It is known that in many accidents, the causes are simple and it was within the reach of all to anticipate the devastating consequences that result from a serious or fatal accident. For this not to be only a mirage for people connected to work safety, it is necessary to stop, think and above all not to assume the presumption of principles that in some cases are based in old ideologies and practices.
Description
Dissertação como requisito parcial para obtenção do grau de Mestre em Segurança e Higiene no Trabalho
Keywords
Perceção de risco Comportamentos seguros Cultura de segurança Acidentes de trabalho Espaços confinados Nível de oxigénio Perceived risk Safe behavior Safety culture Occupational accidents Confined spaces Oxygen MSHT
Pedagogical Context
Citation
Publisher
Instituto Politécnico de Setúbal. Escola Superior de Ciências Empresariais