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Development of Land Use Regression models for particulate matter and associated components in a low air pollutant concentration airshed

Citation

Dirgawati, M and Heyworth, JS and Wheeler, AJ and McCaul, KA and Blake, D and Boeyen, J and Cope, M and Yeap, BB and Nieuwenhuijsen, M and Brunekreef, B and Hinwood, A, Development of Land Use Regression models for particulate matter and associated components in a low air pollutant concentration airshed, Atmospheric Environment, 144 pp. 69-78. ISSN 1352-2310 (2016) [Refereed Article]

Copyright Statement

Copyright 2016 Elsevier Ltd.

DOI: doi:10.1016/j.atmosenv.2016.08.013

Abstract

Perth, Western Australia represents an area where pollutant concentrations are considered low compared with international locations. Land Use Regression (LUR) models for PM10, PM2.5 and PM2.5 Absorbance (PM2.5Abs) along with their elemental components: Fe, K, Mn, V, S, Zn and Si were developed for the Perth Metropolitan area in order to estimate air pollutant concentrations across Perth. The most important predictor for PM10 was green spaces. Heavy vehicle traffic load was found to be the strongest predictor for PM2.5Abs. Traffic variables were observed to be the important contributors for PM10 and PM2.5 elements in Perth, except for PM2.5 V which had distance to coast as the predominant predictor. Open green spaces explained more of the variability in the PM10 elements than for PM2.5 elements, and population density was more important for PM2.5 elements than for PM10 elements. The PM2.5 and PM2.5Abs LUR models explained 67% and 82% of the variance, respectively, but the PM10 model only explained 35% of the variance. The PM2.5 models for Mn, V, and Zn explained between 70% and 90% of the variability in concentrations. PM10 V, Si, K, S and Fe models explained between 53% and 71% of the variability in respective concentrations. Testing the models using leave one-out cross validation, hold out validation and cross-hold out validation supported the validity of LUR models for PM10, PM2.5 and PM2.5Abs and their corresponding elements in Metropolitan Perth despite the relatively low concentrations.

Item Details

Item Type:Refereed Article
Keywords:air quality, land use regression, spatial, intra urban
Research Division:Medical and Health Sciences
Research Group:Public Health and Health Services
Research Field:Environmental and Occupational Health and Safety
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Environmental Health
Author:Wheeler, AJ (Dr Amanda Wheeler)
ID Code:111477
Year Published:2016
Web of Science® Times Cited:1
Deposited By:Menzies Institute for Medical Research
Deposited On:2016-09-14
Last Modified:2017-11-02
Downloads:0

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