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Title:

Enhancing Public Health Assessment by Incorporating Daily Activities in the Analysis of Population Exposure to Traffic-Related Air Pollution

Accession Number:

01656956

Record Type:

Component

Abstract:

Pulmonary diseases, oxidative stress and functional disturbances are associated with ultrafine particles (UFP), black carbon (BC) and noise in metropolitan areas. The traditional methods for evaluating exposure generally rely on a long-term average concentration at the home location and ignore individual movements. In this study, the authors evaluate individuals’ dynamic exposure to air pollution by assigning UFP, BC and noise predicted by land use regression models to activity locations of individuals throughout the day. This approach is implemented in Toronto, Canada and compared to traditional techniques to highlight the advantages of the dynamic modelling of individual exposure. The comparison between at home exposure and daily mobility-based exposure reveal significant differences when relying on individuals’ mobility compared to a daily average at the home location. The authors observed that exposures based on activity locations visited throughout the day were often more elevated than daily exposure at the home location. On average, individuals increased their UFP, BC and noise exposure by 9%, 4% and 1% while conducting activities out of home (compared to the daily concentration at home). The authors conclude that their proposed dynamic approach significantly improves the results of traditional methods that rely on a long-term average concentration at the home location and they shed light on the importance of using individual daily activities to understand exposure. In addition, they examined the effect of socio-economic characteristics and observed that individual exposure is more strongly associated with indicators that represent the mobility of individuals, such as employment and student status.

Supplemental Notes:

This paper was sponsored by TRB committee ADD50 Standing Committee on Environmental Justice in Transportation.

Report/Paper Numbers:

18-01381

Language:

English

Authors:

Shekarrizfard, Maryam
Minet, Laura
Fallah-Shorshani, Masoud
Hatzopoulou, Marianne

Pagination:

15p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References

Geographic Terms:

Toronto (Canada)

Subject Areas:

Environment; Highways

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-01381

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 10:21AM