Exposure to PM-10 of Shop House Dwellers in Bangkok, Thailand

Document Type

Article

Publication Date

1-1-2005

Abstract

Relationships between personal PM-10 exposure and indoor and outdoor PM-10 concentrations were investigated among 28 non-smoking participants who lived in roadside buildings. The nine repeated measurements covered 3 seasons and were conducted with individuals living in 14 shop houses on Sukhumvit Road, Bangkok. The averages of personal exposure, and indoor and outdoor PM-10 concentrations were 81.6, 74.6 and 130.7 µg/m3 respectively. The overall mean of the outdoor concentrations exceeded both the indoor and personal PM-10 exposure concentrations, and the levels were higher in winter than in the summer or rainy seasons. Variations in the indoor PM-10 concentrations were found from floor to floor, with the highest levels measured on the first floor of the shop house. Even for people living in the same houses, personal PM-10 exposure concentrations could be different. Nonetheless, the result showed that the personal PM-10 exposure level was well correlated with the outdoor concentration. The correlation between personal exposure and outdoor PM-10 concentration was moderate with a median Pearson’s R correlation of 0.706. Excluding a house with a parking space, the median Pearson’s R correlation increased to 0.760. In addition to the contributions from the outdoor PM-10 concentrations, the personal PM-10 exposure concentrations tended to be higher under conditions of incense burning, exposure to tobacco smoke, door opening, and during the winter season. However, sleeping in a bedroom with an air conditioning system tended to lower the personal PM-10 exposure concentrations. This finding supported a conclusion that outdoor PM-10 concentration could be used as an exposure surrogate in a health impact epidemiological study for people living this life-style.

Identifier

35549011773 (Scopus)

Publication Title

Scienceasia

External Full Text Location

https://doi.org/10.2306/scienceasia1513-1874.2005.31.359

ISSN

15131874

First Page

359

Last Page

367

Issue

4

Volume

31

Fund Ref

Chulalongkorn University

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