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List of works by H. Christopher Frey

Assessing methods for comparing emissions from gasoline and diesel light-duty vehicles based on microscale measurements

Assessment of inter-individual, geographic, and seasonal variability in estimated human exposure to fine particles.

scientific article published on 7 November 2012

Assessment of interindividual and geographic variability in human exposure to fine particulate matter in environmental tobacco smoke ⬇️

scientific article published on October 29, 2010

Assessment of the effect of population and diary sampling methods on estimation of school-age children exposure to fine particles

scientific article published on 31 July 2014

Characterization of PM2.5 exposure concentration in transport microenvironments using portable monitors

scientific article published on 27 May 2017

Comparing exposure metrics for the effects of fine particulate matter on emergency hospital admissions.

scientific article published on 14 August 2013

Comparing real-world fuel consumption for diesel- and hydrogen-fueled transit buses and implication for emissions

Comparison of Over-the-Rail and Rail Yard Measurements of Diesel Locomotives

scientific article published on 30 September 2015

Comparison of flexible fuel vehicle and life-cycle fuel consumption and emissions of selected pollutants and greenhouse gases for ethanol 85 versus gasoline.

scientific article published in August 2009

Comparison of real-world and certification emission rates for light duty gasoline vehicles.

scientific article published on 7 December 2017

Comparison of sources of variability in school age children exposure to ambient PM₂.₅.

scientific article

Dose-Response Models are Conditional on Determination of Causality

article

Effect of Biodiesel Fuels on Real-World Emissions of Passenger Locomotives.

scientific article

Effects of idle reduction technologies on real world fuel use and exhaust emissions of idling long-haul trucks.

scientific article published on September 2009

Evaluation of Representativeness of Site-Specific Fuel-Based Vehicle Emission Factors for Route Average Emissions ⬇️

scientific article published on May 31, 2012

Evaluation of response time of a portable system for in-use vehicle tailpipe emissions measurement.

scientific article published in January 2008

Fuel use and emissions comparisons for alternative routes, time of day, road grade, and vehicles based on in-use measurements.

scientific article published in April 2008

Geographic differences in inter-individual variability of human exposure to fine particulate matter.

scientific article

In-use activity, fuel use, and emissions of heavy-duty diesel roll-off refuse trucks.

scientific article published on March 2015

In-use measurement of activity, energy use, and emissions of a plug-in hybrid electric vehicle.

scientific article published on 26 September 2011

Indoor exposure to ambient particles and its estimation using fixed site monitors

scientific article published on 28 December 2018

Introduction to special section on sensitivity analysis and summary of NCSU/USDA workshop on sensitivity analysis

article published in 2002

Link-Based Emission Factors for Heavy-Duty Diesel Trucks Based on Real-World Data

MODELING OF HUMAN EXPOSURE TO IN-VEHICLE PM(2.5) FROM ENVIRONMENTAL TOBACCO SMOKE

scientific article (publication date: 2012)

Method for modeling driving cycles, fuel use, and emissions for over snow vehicles

scientific article published on 2 July 2014

Probabilistic analysis of during cycle-based highway vehicle emission factors.

scientific article

Probabilistic exposure analysis for chemical risk characterization

scientific article (publication date: May 2009)

Quantification of variability and uncertainty for air toxic emission inventories with censored emission factor data.

scientific article

Quantification of variability and uncertainty for censored data sets and application to air toxic emission factors.

scientific article

Quantification of variability and uncertainty using mixture distributions: evaluation of sample size, mixing weights, and separation between components.

scientific article published in June 2004

Real-World fuel use and gaseous emission rates for flex fuel vehicles operated on E85 versus gasoline

scientific article published on 7 December 2017

Real-world energy use and emission rates for idling long-haul trucks and selected idle reduction technologies.

scientific article published in July 2009

Regional on-road vehicle running emissions modeling and evaluation for conventional and alternative vehicle technologies.

scientific article

Sensitivity analysis of a two-dimensional probabilistic risk assessment model using analysis of variance.

scientific article published in December 2005

Sequential Measurement of Intermodal Variability in Public Transportation PM2.5 and CO Exposure Concentrations

scientific article published on 16 May 2016

The Need for a Tighter Particulate-Matter Air-Quality Standard

scientific article published on 10 June 2020

Time series analysis of personal exposure to ambient air pollution and mortality using an exposure simulator

scientific article published on 6 June 2012

Trends in on-road transportation, energy, and emissions

scientific article published on 01 October 2018

Trends in onroad transportation energy and emissions

scientific article published on 28 March 2018

Variability in Light-Duty Gasoline Vehicle Emission Factors from Trip-Based Real-World Measurements.

scientific article

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