Abstract:
:The primary objective of this study was to correlate the emission of macro and nanoparticles released during the process of metal inert gas/metal active gas (MIG/MAG) of stainless steel with different gas mixtures. Using different gas mixtures with different heat inputs, it was possible to determine fume formation rates and surface areas of nanoparticles with alveolar lung deposition capacity. It was found, how the various transfer modes and the type of gas protection, in particular, the percentage of active elements in the chemical composition of the gas, affect the amount of fumes generated and also the generation of nanoparticles with a high capacity of deposition. The spray transfer mode always shows higher values of nanoparticles surface area, unlike the fume formation rates. Among the tested mixtures 82%Ar + 18%CO2 generates higher emissions of nanoparticles as well as fume formation rates.
journal_name
Inhal Toxicoljournal_title
Inhalation toxicologyauthors
Pacheco RP,Gomes JF,Miranda RM,Quintino MLdoi
10.1080/08958378.2017.1358778subject
Has Abstractpub_date
2017-05-01 00:00:00pages
282-289issue
6eissn
0895-8378issn
1091-7691journal_volume
29pub_type
杂志文章abstract::Vanillin is a flavoring agent used in cigarettes. Previous toxicological examinations of the effects on the addition of vanillin to tobacco used mixtures with several other flavoring agents. In the present work, toxicological comparisons were made of experimental cigarettes containing no added vanillin against otherwi...
journal_title:Inhalation toxicology
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doi:10.1080/08958370701353205
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abstract::Continuous environmental or occupational exposure to airborne particulate pollution is believed to be a major hazard for human health. A technique to characterize their deposition and clearance from the lungs is fundamental to understand the underlying mechanisms behind their negative health effects. In this work, we ...
journal_title:Inhalation toxicology
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abstract:CONTEXT:High malaria burden has led to the increased use of insecticides in the tropics and subtropics. This study thus aimed at assessing the hematological effects alteration of pyrethroid insecticide exposure using the experimental animal model. OBJECTIVE:A commonly available Electric Mosquito-Repellent Liquid pyret...
journal_title:Inhalation toxicology
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doi:10.3109/08958378.2013.781251
更新日期:2013-04-01 00:00:00
abstract::This study investigated the surface chemistry of urban fine particles (PM(2.5)), and quantified the adsorbed and desorbed species after exposure to bronchoalveolar lavage fluid (BALF). Urban background and roadside PM(2.5) samples of different mass concentration and total weight were collected in triplicate in the Sou...
journal_title:Inhalation toxicology
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doi:10.1080/08958370490443204
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abstract::Exposure to toluene, one of the major components of glue, can lead to cardiac arrhythmias and sudden sniffing death syndrome. QT dispersion is a useful risk marker for cardiac arrhythmias and sudden cardiac death. The aim of this study was to investigate the effects of glue abuse on QT interval and QT dispersion. The ...
journal_title:Inhalation toxicology
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abstract::Most current deterministic computer dosimetry models use idealized dichotomous symmetrical infant, child, and adolescent tracheobronchial geometries for dosimetry predictions. These tracheobronchial geometries were derived from either the morphometric measurements of J. D. Mortensen and colleagues or those of R. F. Ph...
journal_title:Inhalation toxicology
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journal_title:Inhalation toxicology
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journal_title:Inhalation toxicology
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更新日期:2015-01-01 00:00:00
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journal_title:Inhalation toxicology
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journal_title:Inhalation toxicology
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abstract::Because of the interest attendant to establishing an 8-h ozone (O(3)) federal air quality standard, acute pulmonary function responses to prolonged (6.6 to 8 h) O(3) exposure between 0.08 and 0. 24 ppm have been examined in chamber studies. Given time constraints for O(3) concentration changes in room-sized chambers a...
journal_title:Inhalation toxicology
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journal_title:Inhalation toxicology
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更新日期:2007-08-01 00:00:00
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journal_title:Inhalation toxicology
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更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Increases in particulate matter less than 2.5 µm (PM(2.5)) in ambient air is linked to acute cardiovascular morbidity and mortality. Specific components and potential emission sources of PM(2.5) responsible for adverse health effects of cardiovascular function are unclear. METHODS:Spontaneously hypertensive...
journal_title:Inhalation toxicology
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更新日期:2011-06-01 00:00:00
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journal_title:Inhalation toxicology
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journal_title:Inhalation toxicology
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