Exhaust, Pollution and Universal

Study links air pollution to increased emergency department visits for heart and lung disease

Green Car Congress

NOVEMBER 11, 2018

New research by George Mason University found that exposure to certain air pollutants is linked to increased emergency department (ED) visits for respiratory and cardiovascular diseases. Jenna Krall led the research with colleagues from Emory University, Georgia Institute of Technology, and the University of Pittsburgh.

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Study estimates ~4M children worldwide develop asthma each year because of NO2 air pollution

Green Car Congress

APRIL 11, 2019

About 4 million children worldwide develop asthma each year because of inhaling nitrogen dioxide (NO 2 ) air pollution, according to an open-access study published in The Lancet Planetary Health by researchers at the George Washington University Milken Institute School of Public Health (Milken Institute SPH). —Susan Anenberg.

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New exhaust catalyst features thermal durability and high reactivity at low operating temperatures

Green Car Congress

MARCH 26, 2019

Catalytic converters have been used in the US since the 1970s as a way to clean up pollutants from vehicle exhaust. In the catalytic process, rare metals such as platinum, are used in a chemical reaction to convert carbon monoxide and other pollutants to non-toxic carbon dioxide, nitrogen, and water. —Yong Wang.

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Study finds NYC Clean Air Taxi rules successful in cutting pollution

Green Car Congress

MAY 30, 2019

New York City Clean Air Taxi rules are successful in cutting emissions and reducing air pollution, [link] to a new study by researchers at the Columbia University Mailman School of Public Health and Drexel University. exhaust emissions declined by 82% and 49%, respectively. Treat, David Evans, Kimberly R. Tabb, Gina S.

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UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

Green Car Congress

JULY 8, 2014

A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for developing an exhaust aftertreatment device that cuts CO, NO x and PM emissions from lawnmowers. A filter captures harmful pollutants.

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New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

Green Car Congress

AUGUST 17, 2012

Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Nanostellar was founded in California in 2004 by scientists from Stanford University and NASA Ames Research Center. Kyeongjae Cho.

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Researchers find isolated Pd atoms efficient low-temperature catalysts to convert CO in automotive exhaust

Green Car Congress

OCTOBER 8, 2014

-alumina supports along with a small amount of lanthanum oxide can efficiently turn the carbon monoxide in automotive exhaust into carbon dioxide at temperatures as low as 40 ?Celsius, Most of the pollutants from a modern automobile are emitted during the first 30 seconds of starting a car, when the catalyst is still being warmed.

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Polish study links pollution and winter with rise in heart attack treatment

Green Car Congress

AUGUST 24, 2019

Heavily polluted areas have a higher rate of angioplasty procedures to treat blocked arteries than areas with clean air, according to research to be presented at ESC Congress 2019 together with the World Congress of Cardiology. Procedures are even more common in winter, the most polluted time of year. additional PCIs per week.

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Study infers causal relationship between breast cancer and high exposure to traffic air pollution

Green Car Congress

NOVEMBER 30, 2018

A team at the University of Stirling in the UK has found new evidence of the link between air pollution and cancer as part of a new occupational health study. This new research indicates the role of traffic-related air pollution in contributing to the increasing incidence of breast cancer in the general population.

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Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

Green Car Congress

OCTOBER 20, 2012

A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 Credit: ACS, Chin et al. Click to enlarge.

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UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

JUNE 8, 2023

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. the products used for “car care,” such as windshield washer fluid.

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HEI launches two new non-tailpipe particulate emission studies

Green Car Congress

JANUARY 8, 2023

Emissions from automobile exhaust systems have decreased in recent years due to the introduction of cleaner fuels and new control technologies on internal combustion engines, as well as increases in numbers of hybrid and electric vehicles. 10 ) of urban air, a fraction known to be enriched with non-tailpipe constituents.

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Surrey study investigates effect of group cycling on exposure to pollutants

Green Car Congress

APRIL 25, 2023

In an open access paper in the Journal of Wind Engineering and Industrial Aerodynamics , researchers at the University of Surrey (UK) have investigated the effect of group riding on cyclists’ exposure to vehicle pollutants. —Schmeer et al. 2023.105333

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Researchers clarify links between NOx and airborne sulfates to tackle hazy air pollution

Green Car Congress

DECEMBER 25, 2019

Among pollutants that are less than 2.5 microns in diameter (PM2.5 ), airborne sulfate is one of the most common components of hazy air pollution formed atmospherically via the oxidation of sulfur dioxide (SO 2 ). Dense, hazy fog episodes characterized by relatively high humidity, low visibility and extremely high PM 2.5

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Study suggests some filtering of particulates from diesel exhaust may worsen allergy-induced lung impairment due to increase in NO2

Green Car Congress

APRIL 12, 2019

Air pollution from diesel engines may worsen allergy-induced lung impairment more when tiny particles are filtered from the exhaust than when they are not, according to new research published online in the American Thoracic Society’s American Journal of Respiratory and Critical Care Medicine.

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Two-year study in Canada finds large trucks disproportionately contribute to higher levels of black carbon pollution

Green Car Congress

SEPTEMBER 11, 2018

A two-year study led by researchers at the University of Toronto has found large trucks to be the greatest contributors to black carbon emissions close to major roadways. Black carbon—commonly called soot—is a marker for exposure to diesel exhaust which is known to have negative health effects. Jonathan M. 8b01914.

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Researchers develop effective exhaust catalyst for lower temperature exhaust

Green Car Congress

DECEMBER 15, 2017

To improve fuel efficiency, advanced combustion engines are being designed to minimize the amount of waste heat in the exhaust. As a result, future generations of exhaust after-treatment catalysts must perform at temperatures that are 100 °C lower than current catalysts. —Nie et al.

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Researchers show mechanism by which diesel exhaust particles trigger respiratory “flare-ups”

Green Car Congress

MAY 23, 2017

Researchers at Imperial College London, working with colleagues from King’s College London and University of British Columbia, have demonstrated a mechanism by which diesel exhaust particles directly affect the lungs to initiate symptoms such as a tightening of the airways and cough.

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Mass spectrometer enhances SwRI’s USGR automotive catalyst testing

Green Car Congress

JANUARY 6, 2021

Researchers added the mass spectrometer to SwRI’s Universal Synthetic Gas Reactor (USGR), a catalyst performance testing solution that incorporates a Fourier Transform Infrared (FTIR) spectrometer, which uses IR radiation to identify and quantify molecules present in a gas sample. Real-time information is important,” Seuser said.

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Team finds high concentrations of combustion- and friction-derived magnetic air pollution nanoparticles in human hearts in Mexico City

Green Car Congress

JULY 15, 2019

Solid CFDNPs in air pollution are characterized by the abundant presence of strongly magnetic, iron-rich particles which condense and/or oxidize upon airborne release, often retaining a rounded or spherical shape as they cool. annual air quality standard of 12 ? —Calderón-Garcidueñas et al. Cross, Imad A.M. Ahmed, Vassil V.

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Study finds long-term exposure to black carbon from traffic exhaust at residential address increases the risk of stroke

Green Car Congress

NOVEMBER 1, 2019

Long-term residential exposure to locally emitted black carbon (BC) from traffic exhaust increases the risk of stroke even in low-pollution environments, according to a study by researchers at Karolinska Institutet and other universities in Sweden. g/m 3 ) of black carbon from traffic exhaust, the risk of stroke increased by 4%.

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Empa and partners exploring DME as fuel with new heavy-duty test engine

Green Car Congress

NOVEMBER 30, 2020

An electrically driven compressor for precise exhaust gas recirculation is also used. Then we modify the timing and pressure of the injection, among other things, and look at exhaust emission values and fuel consumption. This is done via exhaust gas recirculation (EGR). —Patrik Soltic. The first results are very promising.

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Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

Green Car Congress

JANUARY 15, 2012

The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. Diesel particulate filters (DPF) and urea-based selective catalytic reduction (SCR) exhaust after-treatment systems thus have emerged as feasible strategies to meet the 2010 USEPA regulations.

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U. Houston-led project looking for new exhaust treatment catalysts for low-temperature lean-burn combustion engines

Green Car Congress

SEPTEMBER 21, 2017

A chemical engineer from the University of Houston is leading a $2.1-million million project to find new catalytic materials that work at lower exhaust temperatures, allowing automakers to build vehicles that operate more efficiently while retaining the ability to clean emissions before they leave the tailpipe. and Johnson Matthey Inc.

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Study finds that babies in strollers can be exposed to up to 60% more pollution than their parents

Green Car Congress

AUGUST 20, 2018

Babies in strollers can be exposed to up to ~60% higher average concentrations of pollution than their parents, causing potential damage to their frontal lobe and impacting on their cognitive abilities and brain development, according to a study by researchers at the University of Surrey (UK).

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UC Riverside team examines influence of mid-and high-level ethanol blends on pollution from GDI flex fuel vehicle

Green Car Congress

JANUARY 2, 2019

Overall, this study provides valuable insights on the impacts of ethanol content and gasoline composition on the exhaust emissions from a current technology GDI FFV. —Yang et al. Jiacheng Yang, Patrick Roth, Thomas D. Durbin, Kent C. Johnson, Akua Asa-Awuku, David R. 8b02206.

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New single-atom catalyst removes methane from engine exhaust at lower temperatures, while remaining stable at high temperatures

Green Car Congress

JULY 21, 2023

A new study by researchers from Washington State University and SLAC National Accelerator Laboratory has found that a catalyst using a single or just a few palladium atoms removed 90% of unburned methane from natural gas engine exhaust at low temperatures. The work is published in the journal Nature Catalysis.

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Auburn University leads $2M DOE Co-Optima project to evaluate renewable butyl acetate as diesel fuel additive

Green Car Congress

OCTOBER 22, 2018

Auburn University researchers are leading a $2-million US Department of Energy Co-Optima project ( earlier post ) that will evaluate renewable butyl acetate (BA) as a bio-based fuel additive that can be blended with diesel fuel to reduce soot and greenhouse gas emissions and yield cleaner engine operation in cold-weather conditions.

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China study connects ozone pollution to cardiovascular health

Green Car Congress

JULY 17, 2017

The study, by a team from Duke University, Tsinghua University, Duke Kunshan University and Peking University, appears in the journal JAMA Internal Medicine. They monitored indoor and outdoor ozone levels, along with other pollutants. —Junfeng (Jim) Zhang, from Duke and Duke Kunshan University.

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SwRI and USTA researchers to develop a novel catalyst for low-temperature SCR

Green Car Congress

JUNE 24, 2014

Southwest Research Institute (SwRI) and The University of Texas at San Antonio (UTSA) announced funding for a new joint research projects to advance clean emission technologies. One of the main groups of pollutants resulting from fuel combustion is the oxides of nitrogen, or NO x.

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Swiss team concludes that particulate filters should be mandatory for GDI engines

Green Car Congress

MAY 24, 2017

Based on a three-year study of toxic and environmentally relevant pollutants from gasoline direct injection (GDI) engines, Swiss researchers have concluded that some GDI engines emit just as many soot particles as unfiltered diesel cars did in the past. Further, the GDI particles carry numerous carcinogenic substances. —Norbert Heeb.

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Risø DTU Developing Electrochemical Method for Diesel Exhaust Treatment

Green Car Congress

JANUARY 30, 2009

Risø, the National Laboratory for Sustainable Energy at the Technical University of Denmark (DTU), is developing an electrochemical method for purifying exhaust, especially exhaust gases from diesel engines. Research on the electrochemical reduction of pollutants has been underway since 1975, when Pancharatnam et al.

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Tsinghua/Argonne Study Finds That Mass Use of EVs in China Could Result in Higher CO2 and Criteria Pollutant Emissions Than Conventional and Hybrid Gasoline Vehicles Due to Coal-Fired Generation of Electricity

Green Car Congress

MAY 25, 2010

The researchers found that while EVs do offer a very promising solution to energy issues due to their replacement of petroleum fuels, for now “ the high pollution levels of coal-fired power plants will trade off EVs’ potential energy benefits in China ”. Gasoline vehicle exhausts contribute very little to total national SO 2 emission (0.2%

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Researchers identify new nitrated PAH compounds from combustion that are hundreds of times more mutagenic than parent PAHs

Green Car Congress

JANUARY 6, 2014

A team led by researchers at Oregon State University has discovered novel nitrated polycyclic aromatic hydrocarbon (NPAH) compounds produced by combustion sources or formed in the atmosphere that are hundreds of times more mutagenic than their parent PAHs, which are known carcinogens. Staci Simonich.

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The importance of considering non-exhaust traffic emissions; the role of EVs

Green Car Congress

MAY 2, 2016

the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al.

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International consortium working on new sensor technology to measure real-world, in-use vehicle emissions

Green Car Congress

AUGUST 14, 2019

As part of the Horizon 2020 research project CARES (City Air Remote Emission Sensing), an international research consortium is working on new contactless exhaust measurement methods that will enable municipalities to take emission-reducing measures. The aim is to detect the exhaust class of each individual vehicle using these measurements.

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Chalmers study finds ship exhaust gas scrubbers responsible for up to 9% of certain hazardous emissions into Baltic Sea

Green Car Congress

OCTOBER 24, 2022

New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaust gas treatment systems—i.e., A scrubber is used on ships to clean exhaust gases, primarily to reduce emissions of sulfur oxides to the atmosphere. Marine Pollution Bulletin , Volume 182, doi: 10.1016/j.marpolbul.2022.113904.

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Imaging study: air pollution impairs function of blood vessels in lungs

Green Car Congress

DECEMBER 10, 2016

Air pollution impairs the function of blood vessels in the lungs, according to a study of more than 16,000 patients presented at EuroEcho-Imaging 2016. The study examined the effect of air pollution on pulmonary haemodynamics (blood flow) in a population and in individuals. The population study showed a negative effect of PM 10 , PM 2.5

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UBC study associates exposure to diesel exhaust with changes in DNA methylation

Green Car Congress

JANUARY 9, 2015

While changes in DNA methylation have been associated with traffic-related air pollution in observational studies, the specific mechanisms have not been explored in a controlled study of asthmatics. Usually when we look at the effects of air pollution, we measure things that are clinically obvious—air flow, blood pressure, heart rhythm.

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Study finds automobile tires are a potential source of carcinogenic dibenzopyrenes to the environment

Green Car Congress

MARCH 10, 2012

A new study by researchers from Stockholm University concludes that automobile tires may be a potential previously unknown source of carcinogenic dibenzopyrenes—a type of high molecular weight polycyclic aromatic hydrocarbon (PAH)—to the environment. Non-exhaust traffic sources of particles. —Sadiktsis et al.

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Study finds use of high cetane fuel reduces all primary pollutants under advanced diesel combustion mode

Green Car Congress

APRIL 24, 2011

A high ignition quality (high cetane number) fuel is well suited for operation under an advanced diesel combustion mode (High Efficiency Clean Combustion, HECC) and leads to reductions in all primary pollutant emissions—i.e., THC and CO as well as NO x and PM—according to research by a team from The Pennsylvania State University.

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Jatropha Biodiesel-FT Blends Reduce Most Criteria Pollutants Compared to Neat FT; Higher NOx

Green Car Congress

MAY 30, 2010

Blending jatropha biodiesel (JBD) with Fischer-Tropsch synthetic diesel (FT) results in lower CO, THC, smoke and PM emissions compared to neat FT, according to a study by researchers at the Norwegian University of Science and Technology (NTNU) published in the ACS journal Energy & Fuels.

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Study finds in-car rush-hour exposure to some particulate pollution twice as high as previously thought

Green Car Congress

JULY 23, 2017

A new study, part of the Atlanta Commuter Exposures (ACE) Study, has assessed on-roadway in-cabin particulate pollution (PM 2.5 ) collected from scripted rush hour commutes on highways and on non-highway side streets. Most traffic pollution sensors are placed on the ground alongside the road and take continuous samples for a 24-hour period.

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Study finds that replacing older, highly polluting school buses could lead to 1.3 million fewer daily absences annually

Green Car Congress

APRIL 11, 2023

Replacing all of the oldest, highly polluting school buses in the US could lead to 1.3 million fewer daily absences annually, according to a University of Michigan study. Even relatively short commutes on school buses can dominate students’ daily air pollution exposures.

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Study links air pollution to increased emergency department visits for heart and lung disease

Study estimates ~4M children worldwide develop asthma each year because of NO2 air pollution

New exhaust catalyst features thermal durability and high reactivity at low operating temperatures

Study finds NYC Clean Air Taxi rules successful in cutting pollution

UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

Researchers find isolated Pd atoms efficient low-temperature catalysts to convert CO in automotive exhaust

Polish study links pollution and winter with rise in heart attack treatment

Study infers causal relationship between breast cancer and high exposure to traffic air pollution

Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

HEI launches two new non-tailpipe particulate emission studies

Surrey study investigates effect of group cycling on exposure to pollutants

Researchers clarify links between NOx and airborne sulfates to tackle hazy air pollution

Study suggests some filtering of particulates from diesel exhaust may worsen allergy-induced lung impairment due to increase in NO2

Two-year study in Canada finds large trucks disproportionately contribute to higher levels of black carbon pollution

Researchers develop effective exhaust catalyst for lower temperature exhaust

Researchers show mechanism by which diesel exhaust particles trigger respiratory “flare-ups”

Mass spectrometer enhances SwRI’s USGR automotive catalyst testing

Team finds high concentrations of combustion- and friction-derived magnetic air pollution nanoparticles in human hearts in Mexico City

Study finds long-term exposure to black carbon from traffic exhaust at residential address increases the risk of stroke

Empa and partners exploring DME as fuel with new heavy-duty test engine

Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

U. Houston-led project looking for new exhaust treatment catalysts for low-temperature lean-burn combustion engines

Study finds that babies in strollers can be exposed to up to 60% more pollution than their parents

UC Riverside team examines influence of mid-and high-level ethanol blends on pollution from GDI flex fuel vehicle

New single-atom catalyst removes methane from engine exhaust at lower temperatures, while remaining stable at high temperatures

Auburn University leads $2M DOE Co-Optima project to evaluate renewable butyl acetate as diesel fuel additive

China study connects ozone pollution to cardiovascular health

SwRI and USTA researchers to develop a novel catalyst for low-temperature SCR

Swiss team concludes that particulate filters should be mandatory for GDI engines

Risø DTU Developing Electrochemical Method for Diesel Exhaust Treatment

Tsinghua/Argonne Study Finds That Mass Use of EVs in China Could Result in Higher CO2 and Criteria Pollutant Emissions Than Conventional and Hybrid Gasoline Vehicles Due to Coal-Fired Generation of Electricity

Researchers identify new nitrated PAH compounds from combustion that are hundreds of times more mutagenic than parent PAHs

The importance of considering non-exhaust traffic emissions; the role of EVs

International consortium working on new sensor technology to measure real-world, in-use vehicle emissions

Chalmers study finds ship exhaust gas scrubbers responsible for up to 9% of certain hazardous emissions into Baltic Sea

Imaging study: air pollution impairs function of blood vessels in lungs

UBC study associates exposure to diesel exhaust with changes in DNA methylation

Study finds automobile tires are a potential source of carcinogenic dibenzopyrenes to the environment

Study finds use of high cetane fuel reduces all primary pollutants under advanced diesel combustion mode

Jatropha Biodiesel-FT Blends Reduce Most Criteria Pollutants Compared to Neat FT; Higher NOx

Study finds in-car rush-hour exposure to some particulate pollution twice as high as previously thought

Study finds that replacing older, highly polluting school buses could lead to 1.3 million fewer daily absences annually

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