Development and Comparison of Air Pollution Exposure Surfaces Derived from On-Road Mobile Monitoring and Short-Term Stationary Sidewalk Measurements

Environmental Science & Technology
Laura MinetMarianne Hatzopoulou

Abstract

Land-use regression (LUR) models of air pollutants are frequently developed on the basis of short-term stationary or mobile monitoring approaches, which raises the question of whether these two data collection protocols lead to similar exposure surfaces. In this study, we measured ultrafine particles (UFP) and black carbon (BC) concentrations in Toronto during summer 2016, using two short-term data collection approaches: mobile, involving 3023 road segments sampled on bicycles, and stationary, involving 92 sidewalk locations. We developed four LUR models and exposure surfaces, for the two pollutants and measurement protocols. Coefficients of determination ( R2) varied from 0.434 to 0.525. Various small-scale traffic variables were included in the mobile LUR. Pearson correlation coefficients between the mobile and stationary surfaces were 0.23 for UFP and 0.49 for BC. We also compared the two surfaces using personal exposures from a panel study in Toronto conducted during the same period. The personal exposures differed from the outdoor exposures derived from the combination of GPS information and exposure surfaces. For UFP, the median for personal outdoor exposure was 26 344 part/cm3, while the cycling and stationary surfaces p...Continue Reading

References

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Mar 12, 2016·Environmental Pollution·William FarrellMarianne Hatzopoulou
Mar 1, 2017·Environmental Science & Technology·Erik van NunenGerard Hoek

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Citations

Feb 5, 2021·Environmental Science & Technology·Meng Qi, Steve Hankey
Dec 15, 2020·Environmental Monitoring and Assessment·Tian XiaStuart Batterman
Dec 4, 2019·The Science of the Total Environment·Rena R JonesDebra T Silverman
Mar 11, 2020·Environmental Research·Maryam ShekarrizfardMarianne Hatzopoulou
Sep 16, 2020·The Science of the Total Environment·Zhenchun YangJohn Gulliver
Feb 1, 2019·The Science of the Total Environment·Jad ZalzalMarianne Hatzopoulou
Jun 26, 2021·The Science of the Total Environment·Xiangyu XuXiaoli Duan
Jul 22, 2021·Environmental Science & Technology·Provat K SahaAlbert A Presto
Jun 1, 2019·Environmental Science & Technology·Provat K SahaAlbert A Presto
Aug 21, 2021·Environmental Monitoring and Assessment·Hoda TalaatHossam Abdelgawad

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