Ryan Allen, Simon Fraser University

Research

Air Pollution Intervention Pregnancy Fetal Growth Neurodevelopment Exposure Assessment Asia Developmental Programming

Latest papers

Vertical monitoring of traffic-related air pollution (TRAP) in urban street canyons of Hong Kong.
The Science of the total environment · 2019
Environmental exposure to lead: old myths never die - Authors' reply.
The Lancet. Public health · 2018 · senior author
Long term exposure to air pollution and mortality in an elderly cohort in Hong Kong.
Environment international · 2018

All 7 publications

Latest funding

Portable air cleaners and indoor air pollution during pregnancy
CIHR · 2026 · Supervisor
$140,000
A Randomized Air Cleaner Intervention Study of Particulate Air Pollution, Fetal Growth, and Early Childhood Development
CIHR · 2025 · Nominated PI
$100,000
An intervention study of prenatal air pollution exposure and its impacts on cardiometabolic and respiratory health in children
CIHR · 2019 · Nominated PI
$699,976

All 7 grants and awards

7 publications.

01

Vertical monitoring of traffic-related air pollution (TRAP) in urban street canyons of Hong Kong.

Wong PPY, Lai PC, Allen R, Cheng W, Lee M, Tsui A, Tang R, Thach TQ, Tian L, Brauer M, Barratt B

The Science of the total environment2019

DOI: 10.1016/j.scitotenv.2019.03.224 PMID: 30909046

02

Environmental exposure to lead: old myths never die - Authors' reply.

Lanphear BP, Hornung RW, Auinger P, Allen R

The Lancet. Public health2018Senior author

DOI: 10.1016/s2468-2667(18)30128-2 PMID: 30092945

03

Long term exposure to air pollution and mortality in an elderly cohort in Hong Kong.

Yang Y, Tang R, Qiu H, Lai PC, Wong P, Thach TQ, Allen R, Brauer M, Tian L, Barratt B

Environment international2018

DOI: 10.1016/j.envint.2018.04.034 PMID: 29730535

04

Integrating travel behavior with land use regression to estimate dynamic air pollution exposure in Hong Kong.

Tang R, Tian L, Thach TQ, Tsui TH, Brauer M, Lee M, Allen R, Yuchi W, Lai PC, Wong P, Barratt B

Environment international2018

DOI: 10.1016/j.envint.2018.01.009 PMID: 29421398

05

Corrigendum to "Land use regression modelling of air pollution in high density high rise cities: A case study in Hong Kong" [Sci. Total Environ. 592 (2017) 306-315].

Lee M, Brauer M, Wong P, Tang R, Tsui TH, Choi C, Cheng W, Lai PC, Tian L, Thach TQ, Allen R, Barratt B

The Science of the total environment2017

DOI: 10.1016/j.scitotenv.2017.04.225 PMID: 28495331

06

Land use regression modelling of air pollution in high density high rise cities: A case study in Hong Kong.

Lee M, Brauer M, Wong P, Tang R, Tsui TH, Choi C, Cheng W, Lai PC, Tian L, Thach TQ, Allen R, Barratt B

The Science of the total environment2017

DOI: 10.1016/j.scitotenv.2017.03.094 PMID: 28319717

07

Evaluation of the recursive model approach for estimating particulate matter infiltration efficiencies using continuous light scattering data.

Allen R, Wallace L, Larson T, Sheppard L, Liu LJ

Journal of exposure science & environmental epidemiology2007First author

DOI: 10.1038/sj.jes.7500539 PMID: 17108894

Portable air cleaners and indoor air pollution during pregnancy

SupervisorCIHR2026Fellowship: Canada Impact+ Research Training Awards - Postdoctoral

Principal investigators: Ulziikhuu, Battsetseg

Keywords: Fetal Growth; Intervention; Neurodevelopment; Pollution; Pregnancy; Smoke

$140,000

A Randomized Air Cleaner Intervention Study of Particulate Air Pollution, Fetal Growth, and Early Childhood Development

Nominated PICIHR2025Project Grant - PA: Population and Public Health - Global Public Health

Principal investigators: Allen, Ryan; Cantoral Preciado, Alejandra D

Keywords: Air Pollution; Fetal Growth; Intervention; Neurodevelopment; Pregnancy

$100,000

An intervention study of prenatal air pollution exposure and its impacts on cardiometabolic and respiratory health in children

Nominated PICIHR2019Project Grant

Principal investigators: Allen, Ryan

Keywords: Air Pollution; Asia; Developmental Programming; Dohad; Environmental Health; Intervention; Pregnancy; Prenatal

$699,976

Randomized Interventions to Evaluate the Effects of Air Pollution Exposure on Children's Health and Development

Nominated PICIHR2015Operating Grant

Principal investigators: Allen, Ryan

Keywords: Air Pollution; Childhood; Cognition; Exposure Assessment; Intervention; Neurodevelopment; Perinatal; Pregnancy; Randomized

$720,535

A randomized air filter intervention study of air pollution and fetal growth in a highly polluted community

SupervisorCIHR2013Doctoral Award - Frederick Banting and Charles Best Canada Graduate Scholarships

Principal investigators: Barn, Prabjit

Keywords: Air Pollution; Environmental Health; Epidemiology; Exposure Assessment; Intervention; Reproductive Health

$105,000

A Randomized Air Filter Intervention Study of Air Pollution and Fetal Growth in a Highly Polluted Community

Nominated PICIHR2012Operating Grant

Principal investigators: Allen, Ryan

Keywords: Air Pollution; Birth Weight; Exposure Assessment; Fetal Growth; Intervention; Particulate Matter; Pregnancy

$276,267

Subclinical cardiovascular health benefits of interventions to reduce exposure to combustion-derived particulate air pollution

Nominated PICIHR2010Operating Grant

Principal investigators: Allen, Ryan

Keywords: Air Pollution; Cardiovascular Health; Endothelial Function; Inflammation; Interventions; Oxidative Stress

$319,686

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

Michael Brauer

Medicine

5 shared papers, latest 2019

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2025

Subject: Prospective PhD student: Air Pollution Dear Professor Allen, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Vertical monitoring of traffic-related air pollution (TRAP) in urban street canyons of Hong Kong." (2019), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "A Randomized Air Cleaner Intervention Study of Particulate Air Pollution, Fetal Growth, and Early Childhood Development" (2025), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]