Chromium and nickel in personal air and its correlation with urine chromium and nickel among workers in a machining industry

Nasiruddin Lim, Nur Sabrina (2014) Chromium and nickel in personal air and its correlation with urine chromium and nickel among workers in a machining industry. [Project Paper] (Submitted)

Text lp FPSK4 2014 26.pdf Download (48MB)

Abstract

Project paper (B.S.(Environmental & Occupational Health)) – Universiti Putra Malaysia, 2014. Background: Metalworking fluids can either be used as lubricant, coolant, cutting fluids, machining fluids or hydraulic oil. Metalworking fluids can helps in preventing metal conusion and act as a metal scrap remover while undergoes machining process. Application of metalworking fluids produced aerosol that contained metal, chemical residues or physical contaminants such as chips and fines will dispersed into the surrounding during the operation. The aim of the study was to determine the correlation between personal air chromium and nickel with the urine chromium and nickel among workers in machining industry. Method: This cross-sectional study was conducted in a machining industry that using metalworking fluid as one of their substances for machine production. 138 workers fulfilled the inclusive criteria were interviewed using administered modified questionnaire. Environmental and personal air concentration was measured using personal inhalable aerosol sample (SKC) for 3 consecutive days for environmental and 8 hours for personal, while urine sample was collected at the end of shift of workers. Both samples were analyzed using ICP-MS for detection of chromium and nickel concentration. Result: The level determined for chromium and nickel in air and urine was slightly above the standard by DOSH, 0.05 mg/m3 for chromium and 0. I mg/m3 for nickel. The significant difference of environmental air concentration between each work section for chromium wasp= 0.04, while for nickel wasp = 0.03. However Pearson correlation result showed significant correlation between personal air chromium with urinary chromium. Linear regression shows there is significant relationship between chromium in personal air and chromium in urine between selected variables. Conc1usion:There was significant difference in the chromium and nickel concentration in environmental in air between work sections. Personal air chromium concentration of workers was influenced by number of machines in each section while urinary chromium concentration was influenced by chromium concentration in personal air. Keywords: Metalworking fluids, Air sampling, Chromium, Nickel, Urine

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Ms. Adni Syuhaida Zon
Date Deposited:	23 Nov 2022 03:53
Last Modified:	24 Mar 2023 01:16
URI:	http://psaspb.upm.edu.my/id/eprint/488

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