A study on exposure to air pollutants and their effects to the respiratory level among employees of Sentul Railway Electric Multiple Unit (EMU) depot

Normah Awang, Nur Faratun Nur, Siti Hajar Yaacob, Ismarulyusda Ishak

Research output: Contribution to journalArticle

Abstract

Sentul Railway Electric Multiple Unit (EMU) Depot is a place for maintenance and storage of trains. A study was conducted to investigate the exposure to air pollutants and their effects to the respiratory level among employees in the depot. The method used in this study included sampling of air pollutants and lung function tests to the workers. Sampling was conducted at three stations in the depot and in the FSK Dean's Office, UKM. The study found that total volatile organic compounds (TVOC) and PM10 concentrations at the first station were 9.0 ± 7.35 ppm and 166.67 ± 176.78 μg/m3, respectively, thus exceeded the permitted standard limits. The concentration of CO, CO2, Pb and As in every station did not exceed the permitted standards. Results of statistical analysis showed that only the concentration of CO had a significant difference between each station. The results of lung function tests showed that all FVC, FEV1 and ratio of FEV1/FVC for both exposed and control subjects were normal as they were higher than normal level of 80%. There was no significant difference on diagnosis of spirometry between the exposed subjects and the control subjects but the exposed subjects had lower respiratory level as compared to the control subjects. There was a significant difference on diagnosis of spirometry between employees who had served less than 10 years with employees who had served 10 years and above. In conclusion, employees who had a long-term exposure to air pollutants in the depot had a low respiratory level.

Original languageEnglish
Pages (from-to)402-407
Number of pages6
JournalWorld Applied Sciences Journal
Volume29
Issue number3
DOIs
Publication statusPublished - 2014

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Air Pollutants
Spirometry
Respiratory Function Tests
Carbon Monoxide
Volatile Organic Compounds
Sampling Studies
Maintenance

Keywords

  • As
  • CO
  • CO
  • Indoor air
  • Lung function test
  • Pb
  • PM
  • TVOC

ASJC Scopus subject areas

  • General

Cite this

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abstract = "Sentul Railway Electric Multiple Unit (EMU) Depot is a place for maintenance and storage of trains. A study was conducted to investigate the exposure to air pollutants and their effects to the respiratory level among employees in the depot. The method used in this study included sampling of air pollutants and lung function tests to the workers. Sampling was conducted at three stations in the depot and in the FSK Dean's Office, UKM. The study found that total volatile organic compounds (TVOC) and PM10 concentrations at the first station were 9.0 ± 7.35 ppm and 166.67 ± 176.78 μg/m3, respectively, thus exceeded the permitted standard limits. The concentration of CO, CO2, Pb and As in every station did not exceed the permitted standards. Results of statistical analysis showed that only the concentration of CO had a significant difference between each station. The results of lung function tests showed that all FVC, FEV1 and ratio of FEV1/FVC for both exposed and control subjects were normal as they were higher than normal level of 80{\%}. There was no significant difference on diagnosis of spirometry between the exposed subjects and the control subjects but the exposed subjects had lower respiratory level as compared to the control subjects. There was a significant difference on diagnosis of spirometry between employees who had served less than 10 years with employees who had served 10 years and above. In conclusion, employees who had a long-term exposure to air pollutants in the depot had a low respiratory level.",
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