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Characterization of ambient particles size in workplace of manufacturing physical fitness equipments
The manufacturing of fitness equipment involves several processes, including the cutting and punching of iron tubes followed by welding. Welding operations produce hazardous gases and particulate matter, which can enter the alveolar, resulting in adverse health effects. This study sought to verify t...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Institute of Occupational Safety and Health, Japan
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331197/ https://www.ncbi.nlm.nih.gov/pubmed/25327301 http://dx.doi.org/10.2486/indhealth.2014-0160 |
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author | LIN, Chih-Chung CHEN, Mei-Ru CHANG, Sheng-Lang LIAO, Wei-Heng CHEN, Hsiu-Ling |
author_facet | LIN, Chih-Chung CHEN, Mei-Ru CHANG, Sheng-Lang LIAO, Wei-Heng CHEN, Hsiu-Ling |
author_sort | LIN, Chih-Chung |
collection | PubMed |
description | The manufacturing of fitness equipment involves several processes, including the cutting and punching of iron tubes followed by welding. Welding operations produce hazardous gases and particulate matter, which can enter the alveolar, resulting in adverse health effects. This study sought to verify the particle size distribution and exposure concentrations of atmospheric air samples in various work areas of a fitness equipment manufacturing industry. Observed particle concentrations are presented by area and in terms of relative magnitude: painting (15.58 mg/m(3)) > automatic welding (0.66 mg/m(3)) > manual welding (0.53 mg/m(3)) > punching (0.18 mg/m(3)) > cutting (0.16 mg/m(3)). The concentrations in each of the five work areas were C(inh)>C(thor)>C(resp). In all areas except the painting area, extra-fine particles produced by welding at high temperatures, and further those coagulated to form larger particles. This study observed bimodal distribution in the size of welding fume in the ranges of 0.7–1 µm and 15–21 µm. Meanwhile, the mass concentrations of particles with different sizes were not consistent across work areas. In the painting area, the mass concentration was higher in C(head)>C(th)>C(alv), but in welding areas, it was found that C(alv)>C(head)>C(th). Particles smaller than 1µm were primarily produced by welding. |
format | Online Article Text |
id | pubmed-4331197 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | National Institute of Occupational Safety and Health, Japan |
record_format | MEDLINE/PubMed |
spelling | pubmed-43311972015-02-19 Characterization of ambient particles size in workplace of manufacturing physical fitness equipments LIN, Chih-Chung CHEN, Mei-Ru CHANG, Sheng-Lang LIAO, Wei-Heng CHEN, Hsiu-Ling Ind Health Original Article The manufacturing of fitness equipment involves several processes, including the cutting and punching of iron tubes followed by welding. Welding operations produce hazardous gases and particulate matter, which can enter the alveolar, resulting in adverse health effects. This study sought to verify the particle size distribution and exposure concentrations of atmospheric air samples in various work areas of a fitness equipment manufacturing industry. Observed particle concentrations are presented by area and in terms of relative magnitude: painting (15.58 mg/m(3)) > automatic welding (0.66 mg/m(3)) > manual welding (0.53 mg/m(3)) > punching (0.18 mg/m(3)) > cutting (0.16 mg/m(3)). The concentrations in each of the five work areas were C(inh)>C(thor)>C(resp). In all areas except the painting area, extra-fine particles produced by welding at high temperatures, and further those coagulated to form larger particles. This study observed bimodal distribution in the size of welding fume in the ranges of 0.7–1 µm and 15–21 µm. Meanwhile, the mass concentrations of particles with different sizes were not consistent across work areas. In the painting area, the mass concentration was higher in C(head)>C(th)>C(alv), but in welding areas, it was found that C(alv)>C(head)>C(th). Particles smaller than 1µm were primarily produced by welding. National Institute of Occupational Safety and Health, Japan 2014-10-17 2015-01 /pmc/articles/PMC4331197/ /pubmed/25327301 http://dx.doi.org/10.2486/indhealth.2014-0160 Text en ©2015 National Institute of Occupational Safety and Health http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. |
spellingShingle | Original Article LIN, Chih-Chung CHEN, Mei-Ru CHANG, Sheng-Lang LIAO, Wei-Heng CHEN, Hsiu-Ling Characterization of ambient particles size in workplace of manufacturing physical fitness equipments |
title | Characterization of ambient particles size in workplace of manufacturing
physical fitness equipments |
title_full | Characterization of ambient particles size in workplace of manufacturing
physical fitness equipments |
title_fullStr | Characterization of ambient particles size in workplace of manufacturing
physical fitness equipments |
title_full_unstemmed | Characterization of ambient particles size in workplace of manufacturing
physical fitness equipments |
title_short | Characterization of ambient particles size in workplace of manufacturing
physical fitness equipments |
title_sort | characterization of ambient particles size in workplace of manufacturing
physical fitness equipments |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4331197/ https://www.ncbi.nlm.nih.gov/pubmed/25327301 http://dx.doi.org/10.2486/indhealth.2014-0160 |
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