Developing an Advanced PM2.5 Exposure Model in Lima, Peru

Remote Sensing
Bryan N VuY Liu

Abstract

It is well recognized that exposure to fine particulate matter (PM2.5) affects health adversely, yet few studies from South America have documented such associations due to the sparsity of PM2.5 measurements. Lima's topography and aging vehicular fleet results in severe air pollution with limited amounts of monitors to effectively quantify PM2.5 levels for epidemiologic studies. We developed an advanced machine learning model to estimate daily PM2.5 concentrations at a 1 km2 spatial resolution in Lima, Peru from 2010 to 2016. We combined aerosol optical depth (AOD), meteorological fields from the European Centre for Medium-Range Weather Forecasts (ECMWF), parameters from the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem), and land use variables to fit a random forest model against ground measurements from 16 monitoring stations. Overall cross-validation R2 (and root mean square prediction error, RMSE) for the random forest model was 0.70 (5.97 μg/m3). Mean PM2.5 for ground measurements was 24.7 μg/m3 while mean estimated PM2.5 was 24.9 μg/m3 in the cross-validation dataset. The mean difference between ground and predicted measurements was -0.09 μg/m3 (Std.Dev. = 5.97 μg/m3), with 94.5% of observations ...Continue Reading

References

Nov 24, 1999·Paediatric and Perinatal Epidemiology·C A LinP H Saldiva
Apr 2, 2002·Journal of the Air & Waste Management Association·Seongheon KimConstantinos Sioutas
Apr 25, 2007·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·Luz Carbajal-ArroyoIsabelle Romieu
Jan 18, 2011·The Journal of Allergy and Clinical Immunology·Lauren M BaumannWilliam Checkley
Mar 13, 2012·Air Quality, Atmosphere, & Health·Regina Maura de MirandaPaulo Saldiva
Apr 24, 2014·Environmental Science. Processes & Impacts· Yuval, David M Broday
Jun 6, 2014·Environmental Science & Technology·Zongwei MaYang Liu
Oct 31, 2015·International Journal of Environmental Research and Public Health·Lindsay J UnderhillNadia N Hansel
Mar 31, 2016·Journal of the Air & Waste Management Association·Marie C RussellYang Liu
Oct 23, 2017·The Science of the Total Environment·Fengchao LiangYang Liu
Nov 15, 2017·Environmental Monitoring and Assessment·Jose SilvaManuel A Leiva-Guzmán
Dec 31, 2018·Environmental Research·Adeylson Guimarães RibeiroAdelaide Cassia Nardocci
May 21, 2019·ISPRS Journal of Photogrammetry and Remote Sensing : Official Publication of the International Society for Photogrammetry and Remote Sensing (ISPRS)·Lara Sofía Della CecaFrancesca Barnaba

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Citations

Nov 21, 2019·Journal of Exposure Science & Environmental Epidemiology·V TapiaG F Gonzales
Apr 30, 2020·Scientific Reports·Gabriel Carrasco-EscobarTarik Benmarhnia
Aug 21, 2019·Journal of Environmental and Public Health·Valeria C Morales-AncajimaGustavo F Gonzales
Jan 17, 2020·Environmental Health : a Global Access Science Source·Jennifer Estefanía Davila CordovaGustavo F Gonzales
May 2, 2020·Journal of Exposure Science & Environmental Epidemiology·V L TapiaG F Gonzales
Jun 7, 2020·Environmental Health : a Global Access Science Source·Vilma TapiaGustavo F Gonzales
Jun 18, 2021·BMC Public Health·Bertha V Vasquez-ApesteguiGustavo F Gonzales
Sep 2, 2021·Annual Review of Biomedical Data Science·Tracey HollowayMark A Zondlo
Sep 4, 2021·Scientific Reports·Rasa ZalakeviciuteYves Rybarczyk

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Software Mentioned

OpenStreetMap
LandScan
MAIAC AOD
LAADS DAAC
IDL
SENAMHI
Geofabrik
ArcGIS
EARTHDATA
Atmosphere Archive & Distribution System Distributed Active Ar...

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