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  1. Impacts of PM2.5 on respiratory system among traffic policemen
    Putri Anis Syahira MJ, Karmegam K, Nur Athirah Diyana MY, Irniza R, Shamsul Bahri MT, Vivien H, et al.
    Work, 2020;66(1):25-29.
    PMID: 32417810 DOI: 10.3233/WOR-203147
    BACKGROUND: Malaysian traffic policemen are constantly exposed to unhealthy air in the outdoor environment, which results in various health problems. This study investigates the relationship of the personal exposure level to PM2.5 and lung functions in traffic policemen in Kuala Lumpur and Johor Bahru.

    METHODS: A pulmonary function test using a spirometer was carried out to measure the lung function of the traffic policemen. The personal exposure level to PM2.5 was measured using a pump with a PVC filter and 5.0μm pore size. A questionnaire requesting the background data, such as age, height, and weight, was also used for testing lung function abnormalities.

    RESULTS: The PM2.5 personal exposure level was found to be significantly related to lung function (predicted FEV1 and predicted FVC) at p-value 

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