Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/60507
Title: Human exposure to respirable suspended particulate and airborne lead in different roadside microenvironments
Authors: Chan, LY
Kwok, WS
Chan, CY
Issue Date: 2000
Publisher: Pergamon Press
Source: Chemosphere, 2000, v. 41, no. 1-2, p. 93-99 How to cite?
Journal: Chemosphere 
Abstract: The aim of this study is to evaluate the particulate air pollution in selected roadside microenvironments of Hong Kong through an intensive field study dated from January 1997 to February 1997. The study employed the microenvironment monitoring technique to access the exposure of pedestrians to respirable suspended particulate and airborne lead (Pb) at heavily trafficked roadsides. A total of 62 roadside sites in 14 districts covering the most urbanized and densely populated areas were selected. It was found that pedestrians were exposed to a 24 h average of respirable suspended particulate, PM10, and airborne Pb (APb), typically ranged from 25.56 to 337.40 μg/m3 and 70.71 to 285.71 ηg/m3, respectively. The average PM10 concentrations at different roadside microenvironments corresponding to urban residential, urban commercial, urban industrial and new town areas were 91.84, 129.08, 83.83, and 118.89 μg/m3 respectively. The corresponding values for APb were 130.01, 143.40, 127.40 and 173.17 ηg/m3, respectively. It was found that measurement at EPD nearby rooftop monitoring stations might not reflect the actual roadside PM10 exposure. Most APb field study data was significantly higher than the nearby fixed station data.
URI: http://hdl.handle.net/10397/60507
ISSN: 0045-6535
EISSN: 1879-1298
DOI: 10.1016/S0045-6535(99)00394-X
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