The development of welding fumes health risk assessment tool for automotive component related industries
The environmental quality index had been applied and used widely for water and ambient air quality. However, indices for industrial indoor air pollutants are relatively novel and limited. Currently, the welding fume exposure risk assessments are largely focused on a single welding fume constituen...
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2015
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| الوصول للمادة أونلاين: | http://eprints.uthm.edu.my/1565/3/AZIAN%20HARIRI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1565/1/24p%20AZIAN%20HARIRI.pdf http://eprints.uthm.edu.my/1565/2/AZIAN%20HARIRI%20WATERMARK.pdf |
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my-uthm-ep.15652021-10-03T08:00:49Z The development of welding fumes health risk assessment tool for automotive component related industries 2015-01 Hariri, Azian TS200-770 Metal manufactures. Metalworking The environmental quality index had been applied and used widely for water and ambient air quality. However, indices for industrial indoor air pollutants are relatively novel and limited. Currently, the welding fume exposure risk assessments are largely focused on a single welding fume constituent approach because the regulatory standard for compliance only caters for a single constituent. However, in reality, welders are simultaneously exposed to multiple welding fume constituents at once. To fulfill this gap, welding fumes health index was developed by assigning doses rating and health risk rating to the multiple constituent of welding fumes and aggregated into index values. In the initial stage of this study, the type of health risks included in the index (sensitizer, respiratory toxins, target organ toxins, and carcinogenicity) and the related technical characteristics were determined by using quality function deployment approach. Personal samplings of welding fumes were conducted in Plant 1 and 2 to assess the concentration of metal constituents during the investigation of case studies along with a series of pulmonary function tests and questionnaire on persistent symptoms. Index values were derived from the aggregation analysis of metal constituent constituents while significant persistent symptoms and pulmonary functions were recognized through statistical analysis. The proposed index was then applied to a selected welding industry for verification purposes (Plant 3). The results of the study showed that the index value was directly proportional with the percentage decrease of the welder’s pulmonary functions in all investigated plants and the significant persistent symptoms (Plant 1: mean index value=1.42, FVC=84.09%, FEV1=88.51%, PEF= 68.58%, significant persistent symptom: sore or dry throat; Plant 2: mean index value=1.40, FVC=87.86%, FEV1=91.14%, PEF=71.68%, significant persistent symptom: none ;Plant 3: mean index value=1.30, FVC=89.65%, FEV1=91.96%, PEF= 80.57%, significant persistent symptom: none). The developed welding fumes health index showed its promising ability to rank welding workplace that associates well with persistent symptoms and pulmonary functions of the investigated welders. 2015-01 Thesis http://eprints.uthm.edu.my/1565/ http://eprints.uthm.edu.my/1565/3/AZIAN%20HARIRI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1565/1/24p%20AZIAN%20HARIRI.pdf text en public http://eprints.uthm.edu.my/1565/2/AZIAN%20HARIRI%20WATERMARK.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering |
| institution |
Universiti Tun Hussein Onn Malaysia |
| collection |
UTHM Institutional Repository |
| language |
English English English |
| topic |
TS200-770 Metal manufactures Metalworking |
| spellingShingle |
TS200-770 Metal manufactures Metalworking Hariri, Azian The development of welding fumes health risk assessment tool for automotive component related industries |
| description |
The environmental quality index had been applied and used widely for water and
ambient air quality. However, indices for industrial indoor air pollutants are relatively
novel and limited. Currently, the welding fume exposure risk assessments are largely
focused on a single welding fume constituent approach because the regulatory standard
for compliance only caters for a single constituent. However, in reality, welders are
simultaneously exposed to multiple welding fume constituents at once. To fulfill this
gap, welding fumes health index was developed by assigning doses rating and health
risk rating to the multiple constituent of welding fumes and aggregated into index
values. In the initial stage of this study, the type of health risks included in the
index (sensitizer, respiratory toxins, target organ toxins, and carcinogenicity) and the
related technical characteristics were determined by using quality function deployment
approach. Personal samplings of welding fumes were conducted in Plant 1 and 2 to
assess the concentration of metal constituents during the investigation of case studies
along with a series of pulmonary function tests and questionnaire on persistent
symptoms. Index values were derived from the aggregation analysis of metal constituent
constituents while significant persistent symptoms and pulmonary functions were
recognized through statistical analysis. The proposed index was then applied to a
selected welding industry for verification purposes (Plant 3). The results of the study
showed that the index value was directly proportional with the percentage decrease of
the welder’s pulmonary functions in all investigated plants and the significant persistent
symptoms (Plant 1: mean index value=1.42, FVC=84.09%, FEV1=88.51%, PEF=
68.58%, significant persistent symptom: sore or dry throat; Plant 2: mean index
value=1.40, FVC=87.86%, FEV1=91.14%, PEF=71.68%, significant persistent
symptom: none ;Plant 3: mean index value=1.30, FVC=89.65%, FEV1=91.96%, PEF=
80.57%, significant persistent symptom: none). The developed welding fumes health
index showed its promising ability to rank welding workplace that associates well with
persistent symptoms and pulmonary functions of the investigated welders. |
| format |
Thesis |
| qualification_name |
Doctor of Philosophy (PhD.) |
| qualification_level |
Doctorate |
| author |
Hariri, Azian |
| author_facet |
Hariri, Azian |
| author_sort |
Hariri, Azian |
| title |
The development of welding fumes health risk assessment tool for automotive component related industries |
| title_short |
The development of welding fumes health risk assessment tool for automotive component related industries |
| title_full |
The development of welding fumes health risk assessment tool for automotive component related industries |
| title_fullStr |
The development of welding fumes health risk assessment tool for automotive component related industries |
| title_full_unstemmed |
The development of welding fumes health risk assessment tool for automotive component related industries |
| title_sort |
development of welding fumes health risk assessment tool for automotive component related industries |
| granting_institution |
Universiti Tun Hussein Onn Malaysia |
| granting_department |
Faculty of Mechanical and Manufacturing Engineering |
| publishDate |
2015 |
| url |
http://eprints.uthm.edu.my/1565/3/AZIAN%20HARIRI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1565/1/24p%20AZIAN%20HARIRI.pdf http://eprints.uthm.edu.my/1565/2/AZIAN%20HARIRI%20WATERMARK.pdf |
| _version_ |
1747830817725349888 |