ArticleJournal of exposure science & environmental epidemiology
Effect of time-activity adjustment on exposure assessment for traffic-related ultrafine particles.
Article in Journal of exposure science & environmental epidemiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 50 citations in OpenAlex.
- Systematic review and meta-analysis on the health effects of long-term exposure to ultrafine particles.European respiratory review : an official journal of the European Respiratory Society · 2026Pooled it
- Health effects of ultrafine particles: a systematic literature review update of epidemiological evidence.International journal of public health · 2019Pooled it
- Estimating PM₂.₅-influenza risk using home-school-commute exposure modeling from hourly monitoring data: schoolchildren in Guangzhou, China, 2014-2019.BMC public health · 2026Article
- Personalised estimation of exposure to ambient air pollution and application in a longitudinal cohort analysis of cognitive function in London-dwelling older adults.Journal of exposure science & environmental epidemiology · 2026Article
- Impacts of Vehicle Emission Regulations and Local Congestion Policies on Birth Outcomes Associated with Traffic Air Pollution.Research report (Health Effects Institute) · 2025Article
- Changes in traffic-related air pollution exposures and associations with adverse birth outcomes over 20 years in Texas.International journal of epidemiology · 2024Article
- Does residential address-based exposure assessment for outdoor air pollution lead to bias in epidemiological studies?Environmental health : a global access science source · 2024Review
- Article
- Exposure to ultrafine particles and cognitive decline among older people in the United States.Environmental research · 2023Article
- Relationship between traffic-related air pollution and inflammation biomarkers using structural equation modeling.The Science of the total environment · 2023Article
- Long-term commuting times and air quality relationship to COVID-19 in São Paulo.Journal of transport geography · 2022Article
- Distributions and determinants of time spent outdoors among school-age children in China.Journal of exposure science & environmental epidemiology · 2022Article
- A randomized crossover trial of HEPA air filtration to reduce cardiovascular risk for near highway residents: Methods and approach.Contemporary clinical trials · 2021Article
- Prenatal air pollution exposure and neurodevelopment: A review and blueprint for a harmonized approach within ECHO.Environmental research · 2021Review
- Health Lens Analysis: A Strategy to Engage Community in Environmental Health Research in Action.Sustainability · 2021Article
- Two communities, one highway and the fight for clean air: the role of political history in shaping community engagement and environmental health research translation.BMC public health · 2020Article
- Personal exposure to particulate matter in peri-urban India: predictors and association with ambient concentration at residence.Journal of exposure science & environmental epidemiology · 2020Article
- CBPR Partnerships and Near-Roadway Pollution: A Promising Strategy to Influence the Translation of Research into Practice.Environments (Basel, Switzerland) · 2020Article
- Ultrafine Particle Number Concentration Model for Estimating Retrospective and Prospective Long-Term Ambient Exposures in Urban Neighborhoods.Environmental science & technology · 2020Article
- Viruses and non-allergen environmental triggers in asthma.Journal of investigative medicine : the official publication of the American Federation for Clinical Research · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 5 institutions in 1 country.
Funding
Abstract
Exposures to ultrafine particles (<100 nm, estimated as particle number concentration, PNC) differ from ambient concentrations because of the spatial and temporal variability of both PNC and people. Our goal was to evaluate the influence of time-activity adjustment on exposure assignment and associations with blood biomarkers for a near-highway population. A regression model based on mobile monitoring and spatial and temporal variables was used to generate hourly ambient residential PNC for a full year for a subset of participants (n=140) in the Community Assessment of Freeway Exposure and Health study. We modified the ambient estimates for each hour using personal estimates of hourly time spent in five micro-environments (inside home, outside home, at work, commuting, other) as well as particle infiltration. Time-activity adjusted (TAA)-PNC values differed from residential ambient annual average (RAA)-PNC, with lower exposures predicted for participants who spent more time away from home. Employment status and distance to highway had a differential effect on TAA-PNC. We found associations of RAA-PNC with high sensitivity C-reactive protein and Interleukin-6, although exposure-response functions were non-monotonic. TAA-PNC associations had larger effect estimates and linear exposure-response functions. Our findings suggest that time-activity adjustment improves exposure assessment for air pollutants that vary greatly in space and time.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.