Article
Engineering, Environmental
Katelyn A. Yu, Brian C. McDonald, Robert A. Harley
Summary: Fuel-based NOx emission inventories for California and the US over the period 1990-2020 showed a 70% decline in total on-road NOx emissions, with California leading the reduction by 48% compared to the national decrease. Further efforts have been taken in California to introduce new heavy-duty engines equipped with selective catalytic reduction systems, contributing to the steeper decrease in diesel NOx emissions in the state.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Meng Xiu, Rohan Jayaratne, Phong Thai, Bryce Christensen, Isak Zing, Xiaoting Liu, Lidia Morawska
Summary: This study proposes a simplified method using source signatures to obtain information about local pollution sources. The research found significant differences in CO/PM2.5 ratios among different pollutant sources, suggesting that this ratio can be an effective method for identifying pollution sources.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Melike Nese Tezel-Oguz, Muhammed Marasli, Deniz Sari, Nesimi Ozkurt, S. Sinan Keskin
Summary: This study investigated the simultaneous effects of a specific noise barrier application on near-road noise and air pollution at a specific location. The results showed that the noise barrier not only reduced noise levels but also decreased the NOx concentration, improving air quality. The study also found that the dispersion mechanisms of NOx and noise were different, indicating the need for further research to optimize noise barrier designs considering both noise and air pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Lidia Morawska, Tong Zhu, Nairui Liu, Mehdi Amouei Torkmahalleh, Maria de Fatima Andrade, Benjamin Barratt, Parya Broomandi, Giorgio Buonanno, Luis Carlos Belalcazar Ceron, Jianmin Chen, Yan Cheng, Greg Evans, Mario Gavidia, Hai Guo, Ivan Hanigan, Min Hu, Cheol H. Jeong, Frank Kelly, Laura Gallardo, Prashant Kumar, Xiaopu Lyu, Benjamin J. Mullins, Claus Nordstrom, Gavin Pereira, Xavier Querol, Nestor Yezid Rojas Roa, Armistead Russell, Helen Thompson, Hao Wang, Lina Wang, Tao Wang, Aneta Wierzbicka, Tao Xue, Celine Ye
Summary: The study demonstrates that reducing emissions from all anthropogenic sources is the most effective way to decrease severe air pollution events in the long term. In the short term, accurate weather forecasting systems and effective emergency emission reduction measures can mitigate the scale and duration of pollution events. However, preventing events caused by natural sources affected by climate change remains unclear.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Environmental Sciences
Johan N. Sommar, David Segersson, Erin Flanagan, Anna Oudin
Summary: This study aimed to assess the risk of diabetes incidence associated with source-specific air pollution. The results showed that air pollution related to particulate matter (PM10, PM2.5) and traffic emissions was associated with an increased incidence of diabetes. These findings are consistent with the current evidence on traffic pollution as an environmental risk factor for diabetes.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Javier Carcel-Carrasco, Aurora Martinez-Corral, Carolina Sabina Aparicio-Fernandez, Jangveer Kaur
Summary: This article analyzes the evolution of air quality in different cities and explores the impact of the COVID-19 pandemic on human activity and air pollution. By studying the decrease in pollutant levels due to mobility restrictions, it aims to raise awareness of environmental health.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Roberto San Jose, J. L. Perez, R. M. Gonzalez-Barras
Summary: The study aimed to simulate a high NO2 pollution episode in Madrid in December 2016 with high accuracy. Using a multiscale modelling system, including a mesoscale model with a resolution of 1 km and a CFD model with a resolution of 5 m, substantial improvement in results was achieved with the higher resolution. The modelling system can be used to evaluate emission reduction strategies at street level effectively.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Katelyn A. Yu, Meng Li, Colin Harkins, Jian He, Qindan Zhu, Bert Verreyken, Rebecca H. Schwantes, Ronald C. Cohen, Brian C. Mcdonald, Robert A. Harley
Summary: The reduction in anthropogenic NOx emissions from motor vehicles due to emission control technologies and policies is significant but uncertain. This study evaluates a fuel-based emission inventory for southern California, finding that on-road vehicles are the main source of NOx emissions in the South Coast Air Basin. The fuel-based inventory provides different estimates of NOx emissions for different vehicle types compared to the planning inventory.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Daejin Kim, Haobing Liu, Xiaodan Xu, Hongyu Lu, Roger Wayson, Michael O. Rodgers, Randall Guensler
Summary: This work introduces a parallelly distributed computing technique to quantify the traffic-related pollutant concentrations at regional scales, with a streamlined framework and the connection between emissions and dispersion models through a parallel computing system to achieve high computational efficiency for estimating high-resolution traffic-related air quality impacts.
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
(2021)
Article
Environmental Sciences
Nathan Hay, Otito Onwuzurike, Somesh P. Roy, Patrick McNamara, Margaret L. McNamara, Walter McDonald
Summary: This study evaluated the changes in air pollutant concentrations during and after lockdown in Milwaukee, WI, due to the COVID-19 pandemic. The study found that after the lockdown, there were increases in traffic volume, ammonia, particulate matter, and ozone + nitrogen dioxide concentrations. The results demonstrated that the COVID-19 lockdown measures resulted in decreased traffic and directly impacted air pollutant concentrations.
AIR QUALITY ATMOSPHERE AND HEALTH
(2023)
Article
Engineering, Environmental
Sean C. Mueller, Neelakshi Hudda, Jonathan I. Levy, John L. Durant, Prasad Patil, Nina Franzen Lee, Ida Weiss, Tyler Tatro, Tiffany Duhl, Kevin Lane
Summary: Mobility reductions during the COVID-19 pandemic had a greater and longer-lasting impact on aviation than ground transportation in the United States. A study conducted near Logan Airport in Boston found that ultrafine particle (UFP) concentrations decreased during the pandemic, reflecting the decrease in flight activity and traffic volume. Although traffic volume and particle concentrations returned to pre-pandemic levels, downwind from Logan Airport, particle concentrations remained lower than before the pandemic.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Environmental Sciences
Mimi Zhou, Wei Jiang, Weidong Gao, Xiaomei Gao, Mingchun Ma, Xiao Ma
Summary: This study developed a high-resolution anthropogenic emission inventory for air pollutants in Shandong province in 2017, utilizing both bottom-up and top-down approaches. It identified major sources of pollutants, their spatial distribution, and temporal variations, providing essential information for understanding local emission characteristics and formulating pollution control measures.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Environmental
Haoxiang Cheng, Antonio Di Narzo, Daniel Howell, Kateryna Yevdokimova, Jushan Zhang, Xingmin Zhang, Qi Pan, Zhongyang Zhang, Linda Rogers, Ke Hao
Summary: The UK Biobank is a large cohort study that provides an opportunity to study the association between environmental exposure and biomarkers, and identify potential tools for assessing health damage and disease risk. The study found associations between 30 biomarkers and environmental factors, and a correlation between asthma diagnosis and four pollutants. Additionally, the study showed that environmental exposure and genetic predisposition have an additive effect on biomarker levels and asthma diagnosis.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Cheol-Heon Jeong, Nathan Hilker, Jon M. Wang, Jerzy Debosz, Robert M. Healy, Uwayemi Sofowote, Tony Munoz, Dennis Herod, Greg J. Evans
Summary: This study investigates the influence of winter meteorology on exposure to traffic-related air pollutants (TRAP) near major roads. Results showed that the concentrations of TRAP were higher downwind compared to upwind, indicating the impact of traffic emissions. Even at 150 meters away from the highway, downwind concentrations were still elevated. Additionally, colder temperatures led to increased emissions of certain pollutants, further increasing the concentrations near roadways. Stagnant air conditions also contributed to higher concentrations of TRAP and related particulate matter. This study highlights the potential risks of elevated exposure to traffic emissions for individuals living near major roadways during cold and stagnant winter conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Jia Zhu, Lei Chen, Hong Liao
Summary: This study characterized air pollution over China from 2014 to 2020, with a specific focus on multi-pollutant air pollution (MPAP) for the first time. It assessed the associated health risks of air pollution exposure, taking into account the effects of exposure to multi-pollutant mixture. The findings provide a scientific understanding of complex air pollution and its impacts on health.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Environmental Sciences
Sue Kimbrough, Tim Hanley, Gayle Hagler, Richard Baldauf, Michelle Snyder, Halley Brantley
AIR QUALITY ATMOSPHERE AND HEALTH
(2018)
Article
Public, Environmental & Occupational Health
Matthew D. Wood, Kenton Plourde, Sabrina Larkin, Peter P. Egeghy, Antony J. Williams, Valerie Zemba, Igor Linkov, Daniel A. Vallero
Article
Environmental Sciences
Peter Fantke, Lesa Aylward, Jane Bare, Weihsueh A. Chiu, Robin Dodson, Robert Dwyer, Alexi Ernstoff, Brett Howard, Matti Jantunen, Olivier Jolliet, Richard Judson, Nienke Kirchhubel, Dingsheng Li, Aubrey Miller, Greg Paoli, Paul Price, Lorenz Rhomberg, Beverly Shen, Hyeong-Moo Shin, Justin Teeguarden, Daniel Vallero, John Wambaugh, Barbara A. Wetmore, Rosemary Zaleski, Thomas E. McKone
ENVIRONMENTAL HEALTH PERSPECTIVES
(2018)
Article
Engineering, Environmental
Lei Huang, Nicholas Anastas, Peter Egeghy, Daniel A. Vallero, Olivier Jolliet, Jane Bare
INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT
(2019)
Article
Engineering, Environmental
Julie Wroble, Tim Frederick, Daniel Vallero
ENVIRONMENTAL & ENGINEERING GEOSCIENCE
(2020)
Article
Environmental Sciences
David E. Meyer, Sidney C. Bailin, Daniel Vallero, Peter P. Egeghy, Shi V. Liu, Elaine A. Cohen Hubal
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Parikshit Deshmukh, Sue Kimbrough, Stephen Krabbe, Russell Logan, Vlad Isakov, Richard Baldauf
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Review
Engineering, Environmental
Daniel A. Vallero, Claudia K. Gunsch
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2020)
Article
Environmental Sciences
Alexander East, Peter P. Egeghy, Elaine A. Cohen Hubal, Rachel Slover, Daniel A. Vallero
Summary: This study estimated human intake of per- and polyfluoroalkyl substances using more recent data, and found that the intake has decreased due to the decrease in production and use of these compounds.
JOURNAL OF EXPOSURE SCIENCE AND ENVIRONMENTAL EPIDEMIOLOGY
(2023)
Article
Environmental Sciences
Alexander East, Daniel Dawson, Graham Glen, Kristin Isaacs, Kathie Dionisio, Paul S. Price, Elaine A. Cohen Hubal, Daniel A. Vallero
Summary: Exposure to chemicals is influenced by associations between individual location, activities, demographic and physiological characteristics. The Residential Population Generator (RPGen) creates a synthetic population by combining US surveys with physiological characteristics, allowing for internal consistency and representative intraindividual variation. This helps modelers identify subgroups vulnerable to chemical exposures.
Article
Engineering, Environmental
Daniel Dawson, Hunter Fisher, Abigail E. Noble, Qingyu Meng, Anne Cooper Doherty, Yuko Sakano, Daniel Vallero, Rogelio Tornero-Velez, Elaine A. Cohen Hubal
Summary: This study estimated the exposure and mass released of 1,4-dioxane from drinking water consumption and product use using a simulation modeling tool. The results showed that people exposed to both contaminated water and product use had higher exposures, primarily attributable to water consumption.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Gayle Hagler, Tim Hanley, Beth Hassett-Sipple, Robert Vanderpool, Marissa Smith, John Wilbur, Thomas Wilbur, Tim Oliver, Dina Shand, Vedran Vidacek, Cortina Johnson, Richard Allen, Caroline D'Angelo
Summary: This study evaluated the comparability of two widely used PM2.5 monitors in Sarajevo, Bosnia and Herzegovina, and found differences in their measurements, requiring data adjustment.
ATMOSPHERIC POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Heidi F. Hubbard, Caroline L. Ring, Tao Hong, Cara C. Henning, Daniel A. Vallero, Peter P. Egeghy, Michael-Rock Goldsmith
Summary: Ex Priori is a flexible exposure model based on Excel, used to prioritize potential exposures for chemicals with minimal data. It quickly visualizes exposure rankings from consumer product use and considers the impact of consumer use pattern changes on exposure risk.
Review
Engineering, Environmental
Chris Holder, Nicole DeLuca, Jeanne Luh, Parnian Alexander, Jeffrey M. Minucci, Daniel A. Vallero, Kent Thomas, Elaine A. Cohen Hubal
Summary: Given that PFAS are ubiquitous in human biomonitoring surveys, humans can be exposed to PFAS through various sources. This study investigated the important pathways of exposure to PFAS by reviewing and mapping evidence for the occurrence of PFAS in exposure media. Data on PFAS occurrence in indoor and environmental media from 229 references were extracted. Studies of PFAS occurrence became numerous after 2005, with most studies focusing on PFOA and PFOS. Most studies found detectable levels of PFAS in food and drinking water, and indoor air and products also had detectable levels in a majority of samples.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Environmental Sciences
Alexander East, Daniel E. Dawson, Sydney Brady, Daniel A. Vallero, Rogelio Tornero-Velez
Summary: This scoping effort aims to map the current landscape of PFAS toxicokinetic models by categorizing different trends and similarities. The assessment reveals that PFOA and PFOS are the most studied PFAS, with the majority of models using one-compartment models.