The association between vehicular air pollution (PM2.5) exposure level and the prevalence of job strain with respiratory health among municipal workers in Kuala Lumpur

Talib, Puteri Natasha Arina (2018) The association between vehicular air pollution (PM2.5) exposure level and the prevalence of job strain with respiratory health among municipal workers in Kuala Lumpur. [Project Paper] (Submitted)

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Abstract

Introduction: The increment of motor vehicles has cause the deterioration of air quality in Kuala Lumpur. Its emissions also been revealed to cause deleterious impacts on health such as the development of respiratory symptoms and the reduction of pulmonary function of traffic wardens who extensively work outdoor. Objectives: To determine the association between vehicular air pollution (PM2.s) exposure level and the prevalence of job strain with respiratory health among municipal workers in Kuala Lumpur. Methodology: A cross-sectional comparative study was conducted among 75 traffic wardens (exposed) and 75 administration staffs (non-exposed) in DBKL who were randomly selected. A self-administered questionnaire was distributed in order to gain socio-demographic information and working characteristics. A standardized Job Content Questionnaire (JCQ) and International Union against Tuberculosis and Lung Diseases (IUATLD) was added in the questionnaire to assess job strain and psychosocial factors and to determine the respiratory symptoms exists among respondents. Chestgraph HI-101 Spirometer was used to assess pulmonary function. The SidePak TM Personal Aerosol Monitor was used to measure vehicular air pollution (PM2.s) level concentration in ambient air. Result: The mean exposure to vehicular air pollution (PM2.s) among exposed group was 65.30 ± 7.76 µg/m3 compared to 24.60 ± 7.91 µg/m3 of non-exposed group. The vehicular air pollution exposure level (PM2.s) was significantly different between those who had cough (t= 2.329, p= 0.021) and phlegm (t= 3.043, p= 0.003). There were significant difference in several pulmonary parameters; measured FEV 1 (p= 0.049), percentage of FEV1/FVC (p<0.001), predicted FVC (p=0.001) and predicted FEV1 (p= 0.002) between exposed and non-exposed group. Significant correlation between vehicular air pollution (PM2.s), age, body mass index (BMI), employment period and working hour with pulmonary function parameters were also shown among respondents. There was a significant association between BMI with shortness of breath (x2= 8.487, p= 0.03 7). An association was detected between co-worker support and phlegm (r= 4.106, p= 0.043) but no association showed between other psychosocial factors with all respiratory symptoms and pulmonary function parameters. Conclusion: The findings of this study showed that both exposure to vehicular air pollution (PM2.s) and psychosocial factors elevate the risk of the development of respiratory symptoms and reduced pulmonary function. Keywords: Vehicular Air Pollution, Job Strain, Respiratory Health

Item Type:	Project Paper
Faculty:	Faculty of Medicine and Health Science
Depositing User:	Ms Norafizah Radzuan
Date Deposited:	24 Jul 2024 08:00
Last Modified:	24 Jul 2024 08:00
URI:	http://psaspb.upm.edu.my/id/eprint/1966

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