Publications

This page is a list of publications in reverse chronological order. Please use search or the filters to browse by research areas, publication types, and content types.

Displaying 126 - 150 of 306. Show 10 | 25 | 50 | 100 results per page.


An Updated Study of Mortality Among North American Synthetic Rubber Industry Workers

Elizabeth Delzell
Nalini Sathiakumar
John Graff
Maurizio Macaluso
George Maldonado
Robert Matthew
August 2006
Research Report 132

This study by Dr. Elizabeth Delzell and colleagues is the first major update of the most extensive human study to date of potential carcinogenic effects of 1,3-butadiene (BD). The earlier study investigated mortality among the largest occupational group exposed to BD: 18,000 men employed in the styrene-butadiene rubber (SBR) industry between 1944 and 1991. In the current study, these workers were followed for an additional 7 years and the effects of exposure to other compounds were evaluated.

Characterization of Metals Emitted from Motor Vehicles

James J Schauer
Glynis C Lough
Martin M Shafer
William F Christensen
Michael F Arndt
Jeffrey T DeMinter
June-Soo Park
March 2006
Research Report 133

To answer important questions about possible sources of metal exposure from both tailpipe and non-tailpipe emissions, Dr. James Schauer and his colleagues at the University of Wisconsin - Madison collected and characterized metals in fine and coarse particles from a variety of sources, including tailpipe emissions, dust from brake and tire wear, and roadway dust.

Characterization of Particulate and Gas Exposures of Sensitive Subpopulations Living in Baltimore and Boston

Petros Koutrakis
Helen H Suh
Jeremy A Sarnat
Kathleen Ward Brown
Brent A Coull
Joel Schwartz
December 2005
Research Report 131

Dr. Koutrakis and his colleagues assessed the correlations between personal exposure to PM2.5 and gaseous copollutants and compare these measurements with those taken at central-site monitors. Three groups of possibly susceptible individuals (children, seniors, and individuals with chronic obstructive pulmonary disease) were recruited in two cities (Boston and Baltimore) in two seasons (summer and winter).

Relationships of Indoor, Outdoor, and Personal Air (RIOPA). Part I. Collection Methods and Descriptive Analyses

Clifford P Weisel
Junfeng (Jim) Zhang
Barbara J Turpin
Maria T Morandi
Steven Colome
Thomas H Stock
Dalia M Spektor
et al.
November 2005
Research Report 130-I

The RIOPA project comprised three studies, one funded by the Mickey Leland National Urban Air Toxics Research Center (NUATRC) and two funded by HEI, that investigated seasonal concentrations of 16 VOCs, 10 carbonyls, and PM2.5 in homes in Los Angeles CA, Houston TX, and Elizabeth NJ. The project was jointly funded and reviewed by a Special Review Panel of the two organizations. It generated a rich database on concentrations of air toxics and PM2.5 in the personal breathing zone of 100 adults in each city as well as inside and outside their homes.

National Morbidity, Mortality, and Air Pollution Study. Part IV: Hierarchical Bivariate Time-Series Models—A Combined Analysis of PM10 Effects on Hospitalization and Mortality

Francesca Dominici
Antonella Zanobetti
Scott L Zeger
Joel Schwartz
Jonathan M Samet
September 2005
Research Report 094-IV

In Part IV of the Morbidity, Mortality, and Air Pollution Study (NMMAPS), Dr Francesca Dominici and colleagues at Johns Hopkins Bloomberg School of Public Health addressed an important question resulting from the combined analysis of air pollution effects on mortality and on hospital admissions. Is the underlying true effect per unit PM10 on mortality (the mortality slope) of the same magnitude as the effect per unit PM10 on hospitalizations (the hospitalization slope) in a given city?

Particle Size and Composition Related to Adverse Health Effects in Aged, Sensitive Rats

Fletcher F Hahn
Edward Barr
Margaret G Ménache
JeanClare Seagrave
September 2005
Research Report 129

Dr. Hahn and colleagues systematically examined lung inflammation in young adult and old rats after inhalation of fine particles (< 2.5 µm in aerodynamic diameter) and ultrafine particles (< 0.1 µm in aerodynamic diameter) of different composition: relatively inert carbon and vanadium pentoxide (V2O5), which contains the transition metal vanadium, known to cause toxic effects upon inhalation in humans in occupational settings. In addition, they examined the effect of a short-term increase (spike) in particle exposure concentration on inflammatory response.

Particulate Air Pollution and Nonfatal Cardiac Events

Annette Peters
et al.
Douglas W Dockery
et al.
June 2005
Research Report 124

This report contains two studies, by Drs. Annette Peters and Douglas Dockery. Dr. Peters and her colleagues evaluated the association between nonfatal myocardial infarction (MI) and exposure to particulate matter just prior to the event. She asked 691 patients in hospitals in Augsburg, Germany who survived an MI to provide hourly details about their activities 4 days before MI onset. The investigators used a case-crossover analysis to determine whether exposure to pollutants was associated with onset of MI. Dr. Dockery and colleagues assessed the correlation between short-term increases in ambient concentrations of particulate matter and the risk of possibly life-threatening arrhythmias in patients with implanted cardioverter defibrillators (ICDs). The investigators studied 195 patients from Boston, MA who had either single or dual-chamber ICD's and used logistic regression models to determine whether exposure to air pollutants was associated with arrhythmias.

Personal, Indoor, and Outdoor Exposures to PM2.5 and Its Components for Groups of Cardiovascular Patients in Amsterdam and Helsinki

Bert Brunekreef
Nicole AH Janssen
Jeroen J de Hartog
Marieke Oldenwening
Kees Meliefste
Gerard Hoek
Timo Lanki
Kirsi L Timonen
Marko Vallius
Juha Pekkanen
Rene Van Grieken
January 2005
Research Report 127

Dr. Brunekreef and his colleagues assessed the correlation between personal, indoor, and outdoor PM2.5 concentrations for elderly people with cardiovascular disease living in Amsterdam, The Netherlands, and Helsinki, Finland. Measurements were taken between November 1998 and June 1999 using fixed monitoring sites near the subjects' residences and inside their homes using the same type of monitor. Personal exposures were monitored with a different type of sampler that the subjects kept with them at all times.

Neurogenic Responses in Rat Lungs After Nose-Only Exposure to Diesel Exhaust

Mark L Witten
Simon S Wong
Nina N Sun
Ingegerd Keith
Chol-Bum Kweon
David E Foster
James J Schauer
Duane L Sherrill
January 2005
Research Report 128

Dr. Witten and colleagues investigated the inflammatory effects of diesel exhaust exposure on rat airways. The investigators focused on the role of neurogenic inflammation, an inflammatory response defined by the release of neuropeptides, such as substance P (SP), from sensory nerve fibers known as C fibers located within the lung tissue. Neurogenic inflammation has been implicated in responses to inhaled irritants such as ozone and cigarette smoke and has been implied to play a role in asthma.

Effects of Exposure to Ultrafine Carbon Particles in Healthy Subjects and Subjects with Asthma

Mark W Frampton
Mark J Utell
Wojciech Zareba
Günter Oberdörster
Christopher Cox
Li-Shan Huang
Paul E Morrow
F Eun-Hyung Lee
David Chalupa
Lauren M Frasier
Donna M Speers
Judith Stewart
December 2004
Research Report 126

Dr. Frampton and his colleagues evaluated the effects of exposing healthy and mildly asthmatic men and women to laboratory-generated ultrafine carbon particles. They hypothesized that ultrafine particle exposure would activate leukocytes and endothelial cells and lead to an inflammatory response in the airway and in the blood; and that it also might affect respiration and cardiac electrophysiologic function. They further hypothesized that effects would be greater in people with asthma than in healthy people.

Time-Series Analysis of Air Pollution and Mortality: A Statistical Review

Francesca Dominici
December 2004
Research Report 123

This report describes a study funded under the Walter A. Rosenblith New Investigator Award. Dr Francesca Dominici and colleagues at Johns Hopkins University developed more flexible methods and statistical models for the National Morbidity, Mortality, and Air Pollution Study database.

Uptake Distribution of Ozone in Human Lungs: Intersubject Variability in Physiologic Response

James S Ultman
Abdellaziz Ben-Jebria
Steven F Arnold
November 2004
Research Report 125

Dr James Ultman and colleagues at Pennsylvania State University recruited 32 men and 28 women to examine differences in ozone uptake in the lung. The subjects (all non smokers) first took a series of single breaths of air–ozone mixtures, which allowed the investigators to examine how ozone was distributed in the airways and where the major fraction of ozone was taken up. In a follow-up test, the subjects pedaled a bicycle ergometer to produce conditions of moderate exercise for one hour while breathing clean air, followed by a third test while breathing ozone at 0.25 ppm).

Evaluation of a Personal and Microenvironmental Aerosol Speciation Sampler (PMASS)

Alison S Geyh
Susanne Hering
Nathan Kreisberg
Walter John
November 2004
Research Report 122

Dr Alison S Geyh and colleagues at Johns Hopkins University evaluated the personal and microenvironmental aerosol speciation sampler (PMASS) prototype developed by Dr. Susanne Hering with HEI funding (HEI Research Report 114). The precision and accuracy of the prototype, which measures PM2.5 mass, elemental and organic carbon, sulfate, and nitrate, was evaluated in two locations with different PM composition. Baltimore, Maryland (outdoors), and Fresno, California (indoors). Geyh and colleagues set a target of 10% precision and 10% accuracy for all species measured.

Field Evaluation of Nanofilm Detectors for Measuring Acidic Particles in Indoor and Outdoor Air

Maire SA Heikkinen
Yair Hazi
Hai Gao
Paul Peters
Morton Lippmann
September 2004
Research Report 121

Dr. Beverly Cohen and her colleagues at New York University School of Medicine tested the performance of iron nanofilms to collect and measure sulfuric acid particles of different sizes under a variety of temperature and humidity conditions. The iron nanofilm detector is a thin iron-coated silicon chip. Particles would react with the iron, creating an elevated site or bump on the film surface, which can be visualized using an atomic force microscope.

Effects of Concentrated Ambient Particles on Normal and Hypersecretory Airways in Rats

Jack R Harkema
Gerald Keeler
James Wagner
Masako Morishita
Edward Timm
Jon Hotchkiss
Frank Marsik
Timothy Dvonch
Norbert Kaminski
Edward Barr
August 2004
Research Report 120

Dr. Jack Harkema and colleagues at Michigan State University conducted a 2-year study with rats to evaluate the short-term effects of inhaling concentrated ambient particles derived from the air in an area of Detroit, Michigan that has a high incidence of childhood asthma. The investigators used two animal models, BN rats that were sensitized with ovalbumin to induce some features of asthma, and F344 rats pretreated with endotoxin to have some features of mild bronchitis. Animals were exposed for 10 hours/day for 1 day or for 4 or 5 consecutive days.

National Morbidity, Mortality, and Air Pollution Study. Part III: Concentration–Response Curves and Thresholds for the 20 Largest US Cities

Michael J Daniels
Francesca Dominici
Scott L Zeger
Jonathan M Samet
May 2004
Research Report 094-III

In Part III of the National Morbidity, Mortality, and Air Pollution Study (NMMAPS), Dr. Daniels and colleagues at Johns Hopkins University and Harvard University evaluated the shape of the relation between PM10 concentrations measured at fixed monitoring sites and daily mortality among residents from all causes (excluding accidental causes), from all cardiovascular and respiratory causes combined, and from causes other than cardiovascular-respiratory disease.

Health Effects of Outdoor Air Pollution in Developing Countries of Asia: A Literature Review

Health Effects Institute
April 2004
Special Report 15

A Special Report by the HEI International Scientific Oversight Committee of HEI Public Health and Air Pollution in Asia (PAPA) Program (a program of the Clean Air Initiative for Asian Cities). This first publication to come from HEI's PAPA Program was undertaken to help inform the Clean Air Initiative for Asian Cities. This special report has identified and summarized more than 135 studies of air pollution and health conducted across Asia. In addition, it critically reviews for the first time a key subset of these studies: 28 studies of daily mortality. The report is a valuable resource for policy makers in Asia and beyond.

Manganese Toxicokinetics at the Blood-Brain Barrier

Robert A Yokel
Janelle S Crossgrove
January 2004
Research Report 119

Drs. Yokel and Crossgrove at the University of Kentucky Medical Center studied the mechanisms by which manganese enters and leaves the brain across the blood–brain barrier and, in particular, whether transporter molecules are involved. The investigators used in vivo brain perfusion in rats as well as in vitro tests in several cell lines to assess specific characteristics of manganese transport, such as pH and energy dependence. Manganese transport rates were compared with those of sucrose and dextran, which do not easily cross the blood–brain barrier.

Peroxides and Macrophages in the Toxicity of Fine Particulate Matter in Rats

Debra L Laskin
Lisa Morio
Kimberly Hooper
Tsung-Hung Li
Brian Buckley
Barbara J Turpin
December 2003
Research Report 117

Dr. Laskin and her colleagues at the Environmental and Occupational Health Sciences Institute at Rutgers University tested the hypothesis that oxidants in ambient air, such as hydrogen peroxide, may be transported by fine particulate matter into the lungs and thus contribute to lung tissue injury. The investigators used ammonium sulfate particles because of their prevalence in the ambient air of the eastern United States and their reportedly low toxicity in animals and humans.

Controlled Exposures of Healthy and Asthmatic Volunteers to Concentrated Ambient Particles in Metropolitan Los Angeles

Henry Gong Jr
Constantinos Sioutas
William S Linn
December 2003
Research Report 118

Dr. Henry Gong Jr and his colleagues at the Los Amigos Research and Education Institute used a Harvard ambient particle concentrator to assess the effects of exposure to concentrated ambient particles (CAPs) on healthy and asthmatic people. 12 healthy individuals and 12 individuals with mild asthma were exposed to either filtered air or CAPs with a maximum exposure level of 200 µg/m3 for two hours while exercising intermittently on a stationary bicycle.

Health Effects of Acute Exposure to Air Pollution

Stephen T Holgate
Thomas Sandström
et al.
Stephen T Holgate
Robert B Devlin
et al.
December 2003
Research Report 112

Stephen Holgate and his colleagues at the University of Southampton proposed that inflammatory changes in lung fluids and blood from humans exposed to PM were related to the chemical composition of the particles. He obtained samples from two human studies in which participants were exposed to diesel exhaust and concentrated ambient particles (CAPs). At a Swedish laboratory 25 healthy and 12 asthmatic participants were exposed to diesel exhaust or filtered air on separate days. At a US laboratory, 12 healthy participants were exposed to filtered air and 30 different healthy participants were exposed to a range of CAPs concentrations. All participants underwent bronchoscopy to obtain lung tissues and fluids to analyze inflammatory markers, including numbers of specific white blood cells, expression of activation markers, and levels of cytokines in addition to analysis of lung function, lung fluids, and blood.

Assessing the Health Impact of Air Quality Regulations: Concepts and Methods for Accountability Research

Health Effects Institute
September 2003
Communication 11

A document from the HEI Accountability Working Group. Evaluating the extent to which air quality regulations improve public health is part of a broad effort—termed accountability—to assess the performance of all environmental regulatory policies. Communication 11 sets out a conceptual framework for accountability research and identifies types of evidence required and methods by which the evidence can be obtained.

Validation and Evaluation of Biomarkers in Workers Exposed to Benzene in China

Qingshan Qu
Roy Shore
Guilan Li
Ximei Jin
Lung Chi Chen
Assieh A Melikian
David Eastmond
Stephen Rappaport
Heyi Li
Doppalapudi Rupa
Suramya Waidyanatha
Songnian Yin
Huifang Yan
Min Meng
Witold Winnik
et al.
June 2003
Research Report 115

Dr. Qingshan Qu and colleagues at the New York University School of Medicine recruited 181 healthy workers in several factories in the Tianjin region of China. These subjects formed part of a cohort of thousands identified by the US National Cancer Institute (NCI) and the China Academy of Preventive Medicine for a study to evaluate tumor incidence in benzene exposed workers (NCI/China study).

Biomarkers in Czech Workers Exposed to 1,3-Butadiene: A Transitional Epidemiologic Study

Richard J Albertini
Radim J Šrám
Pamela M Vacek
Jeremiah Lynch
Janice A Nicklas
Nico J van Sittert
Peter J Boogaard
Rogene F Henderson
James A Swenberg
Ad D Tates
Jonathan B Ward Jr
Michael Wright
et al.
June 2003
Research Report 116

Dr. Albertini and colleges organized a group of researchers from the United States, Czech Republic, The Netherlands, and the United Kingdom to determine whether biomarkers in the blood and urine of workers exposed to butadiene in occupational settings correlated with their personal exposure. Samples were collected from male workers employed either in a plant that used butadiene and styrene to produce rubber polymer in Prague. They also collected blood and urine from male administrative workers at the plant who had no direct occupational exposure to butadiene and served as control subjects.

Biomarkers in Czech Workers Exposed to 1,3-Butadiene: A Transitional Epidemiologic Study

Richard J Albertini
Radim J Šrám
Pamela M Vacek
Jeremiah Lynch
Janice A Nicklas
Nico J van Sittert
Peter J Boogaard
Rogene F Henderson
James A Swenberg
Ad D Tates
Jonathan B Ward Jr
Michael Wright
et al.
June 2003
Research Report 116

Dr. Albertini and colleges organized a group of researchers from the United States, Czech Republic, The Netherlands, and the United Kingdom to determine whether biomarkers in the blood and urine of workers exposed to butadiene in occupational settings correlated with their personal exposure. Samples were collected from male workers employed either in a plant that used butadiene and styrene to produce rubber polymer in Prague. They also collected blood and urine from male administrative workers at the plant who had no direct occupational exposure to butadiene and served as control subjects.