Exposure to fine particulate matter (PM2.5) among highway toll station workers in Taipei: Direct and indirect exposure assessment

Ching Huang Lai, Saou Hsing Liou, Tung Sheng Shih, Peng-Chi Tsai, Hsiao Lung Chen, Yue Cune Chang, Timothy J. Buckley, Paul Strickland, Jouni J K Jaakkola

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In this study, the authors assessed occupational exposure to PM 2.5 among 47 highway toll station workers in Taipei, Taiwan. The subjects were monitored for 10 days to assess integrated 8-hr fine particulate matter (PM2.5) breathing zone concentration. Researchers constructed a microenvironment-time-concentration matrix and applied direct and indirect approaches to assess cumulative exposure. Mean PM2.5 concentration for workers in the truck and bus lanes was 308 μg/m3 (SD = 115.5 μg/m3), substantially higher compared with cash-payment car lanes (mean 115, SD = 41.8, p < 0.001) and ticket-payment car lanes (mean 109, SD = 48.7, p < 0.001). Concentration per vehicle in the truck and bus lanes was 6.4 and 3.7 times higher, respectively, than that of ticket- or cash-payment car lanes. Mean cumulative exposure for the 10-day period was 4,900-13,407 μg/m3 · hr, with a mean of 8,019 μg/m3 · hr (SD = 2,375.3). Indirect and direct concentrations were strongly correlated (r2 = .61, F(1, 125); p = 0.000). The results of this study show that personal exposure to PM2.5 can be reliably estimated using indirect approaches.

Original languageEnglish
Pages (from-to)138-148
Number of pages11
JournalArchives of Environmental Health
Volume59
Issue number3
DOIs
Publication statusPublished - 2004 Mar 1

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Toll highways
Particulate Matter
Motor Vehicles
particulate matter
automobile
Railroad cars
road
Trucks
occupational exposure
Occupational Exposure
Taiwan
Respiration
matrix
Research Personnel
exposure
station
bus

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Environmental Chemistry
  • Public Health, Environmental and Occupational Health

Cite this

Lai, Ching Huang ; Liou, Saou Hsing ; Shih, Tung Sheng ; Tsai, Peng-Chi ; Chen, Hsiao Lung ; Chang, Yue Cune ; Buckley, Timothy J. ; Strickland, Paul ; Jaakkola, Jouni J K. / Exposure to fine particulate matter (PM2.5) among highway toll station workers in Taipei : Direct and indirect exposure assessment. In: Archives of Environmental Health. 2004 ; Vol. 59, No. 3. pp. 138-148.
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Exposure to fine particulate matter (PM2.5) among highway toll station workers in Taipei : Direct and indirect exposure assessment. / Lai, Ching Huang; Liou, Saou Hsing; Shih, Tung Sheng; Tsai, Peng-Chi; Chen, Hsiao Lung; Chang, Yue Cune; Buckley, Timothy J.; Strickland, Paul; Jaakkola, Jouni J K.

In: Archives of Environmental Health, Vol. 59, No. 3, 01.03.2004, p. 138-148.

Research output: Contribution to journalArticle

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