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Notice on a methodology for characterizing emissions of ultrafine particles/nan...
Gomes, João Pereira; Albuquerque, Paula Cristina; Esteves, Helder Manuel; Carvalho, Patrícia AlmeidaBearing in mind the potential adverse health effects of ultrafine particles, it is of paramount importance to perform effective monitoring of nanosized particles in several microenvironments, which may include ambient air, indoor air, and also occupational environments. In fact, effective and accurate monitoring is the first step to obtaining a set of data that could be used further on to perform subsequent eva...
Determination of airborne nanoparticles from welding operations
Gomes, João Pereira; Albuquerque, Paula Cristina; Miranda, Rosa M.; Vieira, Maria TeresaThe 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 results showed the dependence of process parameters on emitted ultra...
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