Particulate Matter

This page has a list of publications and news articles related to Air Pollution - Particulate Matter. Find more information about our research on Air Pollution.

Contents: HEI research contributes to international (IARC) review of diesel and gasoline cancer risk; Annual Conference highlights new PM, diesel, and ozone findings, major issues; Air quality outcomes of national limits on power plant emissions; Study tests potential uses of satellite-based PM measurements.

Research Report 167
Christopher J Paciorek
Yang Liu
May 2012

This report describes a study to assess the ability of satellite-based measurements from National Aeronautics and Space Administration (NASA) satellites to fill spatial and temporal gaps in existing monitoring networks in the eastern United States. Dr. Paciorek and colleagues developed statistical models for integrating monitoring, satellite, and geographic information system (GIS) data to estimate monthly ambient PM2.5 concentrations and used those models to estimate monthly average PM2.5 concentrations across the eastern United States. They then developed and applied statistical methods to quantify how uncertainties in exposure estimates based on ground-level monitoring data might be reduced. This study was funded under the Walter A. Rosenblith New Investigator Award.

Research Report 161
Michelle L Bell
January 2012

This report describes a study by Dr. Michelle Bell of Yale University to evaluate the effects of exposure to components of the PM2.5 mixture on short-term morbidity and mortality, using data on 52 components of PM2.5 for 187 US counties. The report explores regional and seasonal variation in the chemical composition of PM2.5 and whether this variation affects the association between short-term exposure to PM and health effects. This study was funded under the Walter A. Rosenblith New Investigator Award.

Contents: Effects of Exposure to Diesel Exhaust Particles in Persons with Asthma and Allergy; Workshop Brings Experts Together: Atmospheric Chemists and Health Effects Scientists Meet at HEI to Discuss Common Goals; Symposium Sheds Light on Air Toxics Hot Spots; Wood Stove Changeout Program Brings Some Improvements in Health, Air Quality; Three New HEI Studies Launched: Ozone Exposure and Inflammatory Cells / PM Exposure and Heart Rhythm / Impact of Exposure in Early Life; ACES Reaches Important Milestones; New Investigator Awards Announced; Eaton Elected to Institute of Medicine

Research Report 164
Timothy R Nurkiewicz
Dale W Porter
Ann F Hubbs
Samuel Stone
Amy M Moseley
Jared L Cumpston
Adam G Goodwill
Stephanie J Frisbee
Peter L Perrotta
Robert W Brock
Jefferson C Frisbee
Matthew A Boegehold
David G Frazer
Bean T Chen
Vincent Castranova
December 2011

This report describes a study that evaluated whether exposure to fine or nano-titanium dioxide (TiO2) particles may affect cardiovascular endpoints, in particular endothelium-dependent vascular dilation. Dr. Nurkiewicz and colleagues exposed rats via inhalation to 0.5 to 20 mg/m3 TiO2 for up to 12 hours and evaluated them for vascular dilation and for markers of oxidative stress, coagulation, and inflammation. This study was funded under the Walter A. Rosenblith New Investigator Award.   

Research Report 160
Paul J Lioy
Zhihua (Tina) Fan
Junfeng (Jim) Zhang
Panos Georgopoulos
Sheng-Wei Wang
Pamela Ohman-Strickland
Xiangmei Wu
Xianlei Zhu
Jason Herrington
Xiaogang Tang
Qingyu Meng
Kyung Hwa Jung
Jaymin Kwon
Marta Hernandez
et al.
August 2011

This report describes a study that tested whether an air toxics "hot spot" existed in Camden, NJ. Dr. Lioy and colleagues evaluated ambient and personal exposures of nonsmoking residents to PM2.5, VOCs, aldehydes, and PAHs in two neighborhoods in Camden, NJ, one of which was hypothesized to be a regional air toxics "hot spot." The investigators compared concentrations of air pollutants in the two neighborhoods with each other and then with concentrations at other locations in the United States. They also assessed the effects of seasonality, contributions from mobile sources, and spatial variability.

Research Report 157
Kalpana Balakrishnan
et al.
Uma Rajarathnam
et al.
March 2011

This report contains studies in Chennai and Delhi led by Dr. Kalpana Balakrishnan and Dr. Uma Rajarathnam, respectively. These time-series studies of air pollution and mortality in India were funded under HEI's PAPA Program to provide information to inform regulatory and other decisions that would be relevant to local populations, with the added goal of supporting scientific capacity building in the region.

Research Report 153
James J Schauer
Brian J Majestic
Rebecca J Sheesley
Martin M Shafer
Jeffrey T DeMinter
Mark Mieritz
December 2010

This report investigates methods with the high sensitivity and low limits of detection needed to analyze a wide range of chemical species in particulate matter collected with personal samplers. Dr. Schauer and colleagues developed sensitive methods to detect trace metals, nonpolar organic compounds, and polar organic compounds in personal samples collected in exposure studies. Methods used in this study are of interest to researchers seeking to gain greater insight into the relationships between the components of inhalable particulates and their health effects.

Research Report 154
Haidong Kan
et al.
Zhengmin Qian
et al.
Nuntavarn Vichit-Vadakan
et al.
Chit-Ming Wong
et al.
November 2010

This report describes the first set of coordinated time-series studies ever undertaken in Asian cities: four time-series studies of the health effects of air pollution in Bangkok, Hong Kong, Shanghai, and Wuhan. These studies were intended to help bridge the gaps between studies conducted in different locations around the globe.

Research Report 142
Klea Katsouyanni
Jonathan M Samet
H Ross Anderson
Richard Atkinson
Alain Le Tertre
Sylvia Medina
Evangelia Samoli
Giota Touloumi
Richard T Burnett
Daniel Krewski
Timothy Ramsay
Francesca Dominici
Roger D Peng
Joel Schwartz
Antonella Zanobetti
October 2009

This report describes a unique collaboration among investigators from Europe, the United States, and Canada using existing data from three geographic areas and supported by HEI in collaboration with the European Commission. APHENA offered a large and diverse data set with which to address methodological as well as scientific issues about the relationships between PM10, ozone, and mortality and morbidity that were the subject of lively debates at the time the project was launched.