Paula Albuquerque

Instituto Politécnico de Lisboa | ISEL · Departamento das Ciências e Tecnologias Laboratoriais e Saúde Comunitária

The objective of this study was to evaluate occupational exposure to nanoparticles during some tasks performed in different production processes of different ceramic industries in Portugal, to select the places of greatest occupational exposure through the analysis of the sampled data, to verify what is the pulmonary accumulation in these places, t...

Objectives: The objective of this study was the evaluation of the professional exposure to nanoparticles during tasks performed in workstations for production of metallic parts by laser welding additive manufacturing. Materials and methods: The study was developed in an installed additive manufacturing machine, having controlled temperature and hum...

Pretende-se, com este estudo, avaliar a exposição profissional a nanopartículas durante as tarefas executadas em diversos postos de trabalho durante a produção de peças metálicas por processamento aditivo por soldadura a laser, analisar os dados recolhidos e procurar compreender a situação específica de exposição profissional dos trabalhadores que...

Pretende-se, com este estudo avaliar a exposição ocupacional da limpeza de metais (alumínio, aço e titânio) com incisão de duas tipologias de lasers (LAL e Diodo) com diferentes intensidades, diferentes velocidades, diferentes tempos de incisão e diferentes distâncias entre as linhas de incisão nas amostras, no sentido de poder comparar as emissões...

Pretende-se, com este estudo, avaliar a exposição ocupacional a nanopartículas durante as tarefas executadas em diversos postos de trabalho nos processos produtivos de unidades fabris da indústria cerâmica nacional, analisar os dados recolhidos e procurar compreender a situação específica de exposição ocupacional dos trabalhadores neste sector. O e...

Resumo A Saúde Ocupacional como parte integrante da Saúde Pública no âmbito da prevenção, avalia, em contínuo, a saúde dos trabalhadores nos vários contextos profissionais, com o objetivo de compreender os fenómenos do binómio saúde-doença privilegiando evitar a exposição a fatores indutores de doença, criando ambientes os mais saudáveis e seguros...

Some studies on professional exposure to particulate matter have pointed to dangerous effects for workers as regards inhalable and respirable particles. These professional exposure scenarios are extremely complex, as they involve components inherent to individuals, working conditions and the activity developed. In what concerns the ceramic industry...

Occupational exposure to welding fumes in the metalo-mechanic industries in Portugal

This paper describes the use of a Control Banding Tool to assess and further control of exposure of nanoparticles emitted during welding operations. The tool was applied to Metal Active Gas (MAG) arc welding of mild and stainless steel, providing semi-quantitative data on the process, so that protection measures could be derived, e.g. exhaust gas v...

According to numerous studies, airborne nanoparticles have a potential to produce serious adverse human health effects when deposited into the respiratory tract. The most important parts of the lung are the alveolar regions with their enormous surface areas and potential to transfer nanoparticles into the blood stream. These effects may be potentia...

This study is focused on the characterization of particles emitted in the metal active gas welding of carbon steel using mixture of Ar + CO2, and intends to analyze which are the main process parameters that influence the emission itself. It was found that the amount of emitted particles (measured by particle number and alveolar deposited surface a...

The aim of this study was to contribute to the assessment of exposure levels of ultrafine particles in the urban environment of Lisbon, Portugal, due to automobile traffic, by monitoring lung deposited alveolar surface area (resulting from exposure to ultrafine particles) in a major avenue leading to the town center during late spring, as well as i...

Unlabelled: Cooking was found to be a main source of submicrometer and ultrafine aerosols from gas combustion in stoves. Therefore, this study consisted of the determination of the alveolar deposited surface area due to aerosols resulting from common domestic cooking activities (boiling fish, vegetables, or pasta, and frying hamburgers and eggs)....

This article describes work performed on the assessment of the levels of airborne ultrafine particles emitted in two welding processes metal-active gas (MAG) of carbon steel and friction-stir welding (FSW) of aluminium in terms of deposited area in alveolar tract of the lung using a nanoparticle surface area monitor analyser. The obtained results s...

The aim of this study is to assess the levels of airborne ultrafine particles emitted in welding processes (tungsten inert gas [TIG], metal active gas [MAG] of carbon steel, and friction stir welding [FSW] of aluminum) in terms of deposited area in pulmonary alveolar tract using a nanoparticle surface area monitor (NSAM) analyzer. The obtained resu...

The aim of this study is to contribute to the assessment of exposure levels of ultrafine particles (UFP) in the urban environment of Lisbon, Portugal, due to automobile traffic, by monitoring lung-deposited alveolar surface area (resulting from exposure to UFP) in a major avenue leading to the town centre during late Spring, as well as in indoor bu...

The aim of this study was the assessment of exposure to ultrafine in the urban environment ofLisbon, Portugal, due to automobile traffic, and consisted of the determination of deposited alveolar surface area in an avenue leading to the town center during late spring. This study revealed differentiated patterns for weekdays and weekends, which could...

Resumo Pala a s-Ci~av~: Formaldeido, Compostos Orgánicos Voláteis, Ventilação, Qualidade do Ar Interior, Serviços de Anatomia Patológica.-INTRODUÇÃO O efeito mais facilmente detectável da exposição aos vapores de Formaldeído é o seu odor desagradável e o seu efeito irritante das mucosas dos olhos e aparelho respiratório superior. Os limites de dete...