Research Reports

HEI’s mission is to provide credible science to support environmental regulations and other policy decisions. The results of each HEI-funded project undergo peer-review by outside scientists and the Health Review Committee. The HEI Research Reports contain the Investigator’s Report and the Review Committee’s evaluation of the study, summarized in a Commentary or short Critique.

ISSN 1041-5505 (print)        ISSN 2688-6855 (online) 

Research Report 202
Stuart Batterman
Veronica J Berrocal
Chad Milando
Owais Gilani
Saravanan Arunachalam
K Max Zhang
2020

Research Report 202 describes a study led by Dr. Stuart Batterman at the University of Michigan, Ann Arbor and colleagues. The investigators evaluated the ability to predict traffic-related air pollution using a variety of methods and models, including a line source air pollution dispersion model and sophisticated spatiotemporal Bayesian data fusion methods.

Research Report 203
Michael Brauer
Jeffrey R Brook
Tanya Christidis
Yen Chu
Dan Crouse
Anders Erickson
Perry Hystad
Chi Li
Randall V Martin
Jun Meng
Amanda J. Pappin
Lauren L. Pinault
Michael Tjepkema
Aaron van Donkelaar
Scott Weichenthal
Richard T Burnett
2019

Research Report 203 describes the first-phase results of a study evaluating the relationship between long-term exposure to low concentrations of PM2.5 and non-accidental mortality, including a characterization of the shape of the concentration–response functions, in a large population-based cohort (~9 million adults) in Canada. The report also presents the detailed Commentary on the study by HEI’s Low-Exposure Epidemiology Studies Review Panel.

Research Report 200
Francesca Dominici
Joel Schwartz
Qian Di
Danielle Braun
Christine Choirat
Antonella Zanobetti
2019

Research Report 200 describes the first-phase results of a study examining any association between exposure to low levels of air pollution — both PM2.5 and O3 — and all-cause mortality in a population of 61 million Medicare enrollees residing in the continental United States. The report also presents the detailed Commentary on the study by HEI’s Low-Exposure Epidemiology Studies Review Panel.

Research Report 198
Jason D Surratt
Ying-Hsuan Lin
Maiko Arashiro
William G Vizuete
Zhenfa Zhang
Avram Gold
Ilona Jaspers
Rebecca C Fry
2019

Research Report 198 describes a study by Dr. Jason Surratt and his colleagues evaluating the toxicity of fine particulate matter formed from the photochemical oxidation of isoprene in a chamber.

Research Report 197
Nga L Ng
Wing Y Tuet
Yunle Chen
Shierly Fok
Dong Goa
Marlen S Tagle Rodriguez
Mitchel Klein
Anna Grosberg
Rodney J Weber
Julie A Champion
2019

Research Report 197 describes a study led by Dr. Nga Ng to characterize and compare the oxidative properties of ambient particulate matter and laboratory-generated secondary organic aerosols in toxicologic assays.

Research Report 199
Xiaoliang Wang
Andrey Khlystov
Kin-Fai Ho
Dave Campbell
Judith C Chow
Steven D Kohl
John G Watson
Shun-cheng Frank Lee
Lung-Wen Antony Chen
Minggen Lu
Steven Sai Hang Ho
2019

Research Report 199 describes a study led by Dr. Xiaoliang Wang evaluating how mobile-source emissions have changed by examining real-world emissions characterization in two traffic tunnels: the Shing Mun Tunnel in Hong Kong and the Fort McHenry Tunnel in Baltimore, Maryland.

Research Report 196
Jeremy A Sarnat
Armistead (Ted) G Russell
Donghai Liang
Jennifer L Moutinho
Rachel Golan
Rodney J Weber
Dong Gao
Stefanie Ebelt
Howard H Chang
Roby Greenwald
Tianwei Yu
2018

Research Report 196, Developing Multipollutant Exposure Indicators of Traffic Pollution: The Dorm Room Inhalation to Vehicle Emissions (DRIVE) Study, describes a study by Dr. Jeremy A. Sarnat that evaluated single- and multipollutant metrics of exposure to traffic-related air pollutants near and farther away from a major highway in Atlanta, as well as biological markers in a panel of students.

Research Report 195
Armistead (Ted) G Russell
Paige E Tolbert
Lucas RF Henneman
Joseph Abrams
Cong Liu
Mitchel Klein
James A Mulholland
Stefanie Ebelt
Yongtao Hu
Howard H Chang
Talat Odman
Matthew J Strickland
Huizhong Shen
Abiola Lawal
2018

Research Report 195 describes a study led by Ted Russell at the Georgia Institute of Technology as part of HEI’s Accountability Research Program. Dr. Russell and colleagues examined the extent to which regulations targeting power plants and mobile sources in the Atlanta area were effective in improving air quality and ultimately reducing cardiorespiratory emergency department visits.

Research Report 194
Benjamin Barratt
Martha Lee
Paulina Wong
Robert Tang
Tsz Him Tsui
Wei Cheng
Yang Yang
Poh-Chin Lai
Linwei Tian
Thuan-Quoc Thach
Ryan Allen
Michael Brauer
2018

HEI’s Research Report 194 describes a study led by Benjamin Barratt of King’s College London, United Kingdom, that developed a dynamic three-dimensional land-use regression model for Hong Kong and used it to estimate exposure to traffic-related air pollution.

Research Report 193
Jiu-Chiuan Chen
Xinhui Wang
Marc Serre
Steven Cen
Meredith Franklin
Mark Espeland
2017

Research Report 193 describes a novel study by Jiu-Chiuan Chen and colleagues examining possible associations between long-term exposure to ambient particulate matter (PM) and changes in the brains of older women in the United States. The study focused on brain volumes and neurocognitive outcomes, specifically mild cognitive impairment and dementia. Dr. Chen used neuroimaging and cognitive outcome data from women enrolled in the Women’s Health Initiative Memory Study and estimated their exposure to ambient PM2.5 and to diesel PM.