Comparison of welding fumes exposure during standing and sitting welder’s position

Hariri, Azian and Md Yusof, Mohammad Zainal and Leman, Abd Mutalib (2013) Comparison of welding fumes exposure during standing and sitting welder’s position. World Academy of Science, Engineering and Technology , 82 . pp. 640-643.

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Abstract

Experimental study was conducted to assess personal welding fumes exposure toward welders during an aluminum metal inert gas (MIG) process. The welding process was carried out by a welding machine attached to a Computer Numerical Control (CNC) workbench. A dummy welder was used to replicate welder during welding works and was attached with sampling pumps and filter cassettes for welding fumes sampling. Direct reading instruments to measure air velocity, humidity, temperature and particulate matter with diameter size 10*m or less (PM10) were located behind the dummy welder and parallel to the neck collar level to make sure the measured welding fumes exposure were not being influenced by other factors. Welding fumes exposure during standing and sitting position with and without the usage of local exhaust ventilation (LEV) was investigated. Welding fume samples were then digested and analysed by using inductively coupled plasma mass spectroscopy (ICP-MS) according to ASTM D7439-08 method. The results of the study showed the welding fume exposure during sitting was lower compared to standing position. LEV helped reduce aluminium and lead exposure to acceptable levels during standing position. However during sitting position reduction of exposure was smaller. It can be concluded that welder position and the correct positioning of LEV should be implemented for effective exposure reduction.

Item Type:Article
Uncontrolled Keywords:ICP-MS; MIG process; personal sampling; welding fumes exposure
Subjects:T Technology > T55-55.3 Industrial safety. Industrial accident prevention
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
ID Code:4467
Deposited By:Mrs. Azian Hariri
Deposited On:29 Oct 2013 16:07
Last Modified:29 Oct 2013 16:07

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