The correlation between individual chromium and nickel in air sample with blood chromium and nickel and blood pressure level among workers in machining industry at Nilai, Negeri Sembilan

Mohd Bashah, Nursyahidah (2014) The correlation between individual chromium and nickel in air sample with blood chromium and nickel and blood pressure level among workers in machining industry at Nilai, Negeri Sembilan. [Project Paper] (Submitted)

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Abstract

Project paper (B.Sc.(Environmental & Occupational Health)) - Universiti Putra Malaysia, 2014. Introduction: Metal concentration in occupational origin is a cause of concern because of its potential accumulation in the environment and in living organisms leading to long term toxic effects. Though there are several pieces of evidences suggesting that metals might be involved in high blood pressure and hypertension. Objective: The purpose of this study was to determine the relationship between individual chromium and nickel concentration in air sample with blood and blood pressure level of workers in metal machining industry. Methodology: This cross-sectional study was conducted on 138 male workers. Self-constructed questionnaire were given and continued with blood pressure measurement. The personal air sample was carried out after 3mL blood sample has been collected and analysed using ICP-MS. Correlation test were applied to analyze the correlation of blood pressure level with presence of metal (Cr, and Ni) in blood and air sample. Multiple linear regressions was carried out in order to determine the relationship between selected variables with chromium and nickel concentration in individual air sample, in blood and workers' blood pressure level. Result: Chromium and nickel concentration in air mostly exceed standard which stated in USECHH, 2000. There were significant correlation between personal air chromium and blood chromium (p=0.021) and also between individual nickel in air and blood (p=0.018). There was significant relationship between BM1 and SBP level (p=0.019), smoking status and SBP level (p=0.023), BMI and DBP level (p= 0.010) and also work duration and DBP level (p=0.044). There were significant relationship between blood chromium and personal air chromium (p=0.012) and also between blood chromium and employment years (p=0.044). There was significant relationship between blood nickel and personal air nickel (p=0.024). There was significant relationship between personal air chromium and number of machine in each section (p<0.001). Conclusion: There were statistically significant correlations between chromium and nickel in personal air and blood sample. Personal air chromium was influenced by number of machines in the work section. Blood chromium was influenced by individual air chromium and employment years while blood nickel was influenced by individual air nickel. SBP were influenced by BMI and smoking status while DBP was influenced by BMI and work duration. Keywords:Blood pressure, Personal air sampling, chromium, nickel, blood sample

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Ms. Adni Syuhaida Zon
Date Deposited:	23 Nov 2022 03:58
Last Modified:	24 Mar 2023 01:26
URI:	http://psaspb.upm.edu.my/id/eprint/569

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