Green Car Congress

APRIL 7, 2022

liter, heavy-duty opposed-piston, three-cylinder diesel engine it developed in a project funded by the California Air Resources Board (CARB) and several partners ( earlier post ) has entered fleet service with WALMART Corporation in a Peterbilt 579 tractor. The project team also demonstrated that the engine reduces carbon dioxide by 10%.

Diesel 468

Diesel Fleet Peterbilt Eaton 468

Green Car Congress

AUGUST 24, 2018

Air pollution, and fine dust in particular, is calculated to contribute to more than four million deaths each year. While the mechanisms by which air pollutants cause cardiovascular events is undergoing continual refinement, the preponderant evidence support rapid effects of a diversity of pollutants including all particulate pollutants (e.g.

Pollution 220

Pollution Insight Ozone Cleveland 220

Green Car Congress

MAY 23, 2014

A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al. Platt et al. Click to enlarge.

Pollution 362

Pollution Exhaust Emissions Light 362

Green Car Congress

OCTOBER 21, 2015

Rice University scientists, working with colleagues in France, have detected the presence of anthropogenic carbon nanotubes (CBTs) in cells extracted from the airways of Parisian children under routine treatment for asthma. Carbon nanotubes and carbon nanoparticles (a) in vehicle exhaust and (b) inside a lung cell vacuole.

Universal 150

Universal Carbon Pollution El Paso 150

Green Car Congress

MAY 27, 2020

Southwest Research Institute engineers have developed the next generation of clean diesel engine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. SwRI developed the technology for the California Air Resources Board (CARB). g/hp-hr NO x emissions).

Engine 545

Engine Emissions Diesel 2020 545

Green Car Congress

JANUARY 2, 2019

the E30 and E78—led to statistically significant reductions of 9%–13% for total hydrocarbon (THC); 13%–44% for non-methane hydrocarbon (NMHC); 20%–35% for carbon monoxide (CO); and 17%–36% for nitrogen oxides (NO x ) emissions compared to the high-aromatics E10 fuel. Their paper is published in the ACS journal Energy & Fuels.

Pollution 255

Pollution Fuel Vehicles Emissions 255

Green Car Congress

NOVEMBER 28, 2013

In 2012, the International Agency for Research on Cancer (IARC), which is part of the World Health Organization (WHO), classified diesel engine exhaust (DEE) as carcinogenic to humans (Group 1). Earlier post.). Our estimates suggest that stringent occupational and environmental standards for DEE should be set. —Vermeulen et al.

Exhaust 353

Exhaust Diesel Brazil 2000 353

Green Car Congress

SEPTEMBER 5, 2016

New research by scientists at King’s College London suggests that air pollution from London’s roads is improving overall but more work may be needed to tackle some sources of traffic pollution, which continue to breach limits in many parts of the city. No data was available to compare trends in ΔPM 2.5 between the two periods.

London 150

London Pollution Parts Exhaust 150

Green Car Congress

OCTOBER 21, 2017

Pollution is the largest environmental cause of disease and premature death in the world today, according to the newly released report detailing the adverse effects of pollution on global health by the The Lancet Commission on Pollution and Health. Pollution is costly. The open-access report is published in The Lancet.

Pollution 186

Pollution Global 2015 Water 186

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.

Exhaust 150

Exhaust Emissions Belgium Gasoline-Electric 150

Green Car Congress

JULY 14, 2011

A large body of work shows that exposure to road traffic and air pollution may be a trigger of adverse cardiovascular events such as angina, myocardial infarction, and heart failure, with long-term exposure increasing the lifetime risk of death from coronary heart disease.

Exhaust 268

Exhaust Diesel Pollution Emissions 268

Green Car Congress

MAY 8, 2015

The California Air Resources Board (ARB) has released , for public review, a concept paper to initiate discussion on the development of a Short-Lived Climate Pollutant Reduction Strategy. Short-lived climate pollutants (SLCPs) include methane, tropospheric ozone, black carbon, and fluorinated gases.

Pollution 150

Pollution Climate Concept California 150

Green Car Congress

MARCH 5, 2012

In a study of non-metal miners in the US, federal government scientists report that heavy exposure to diesel exhaust increased risk of death from lung cancer. For never-smokers, risk of lung cancer death increased with increasing diesel exhaust exposure. effect of diesel exhaust exposure on lung cancer mortality in.

Exhaust 273

Exhaust Diesel 2012 Los Angeles 273

Green Car Congress

MARCH 29, 2023

An open-access paper on their work is published in the journal Environment International While the World Health Organization has not yet set a guideline for safe levels of ultrafine particles, it recognizes that particulate pollution overall is associated with negative impacts on cardiovascular and respiratory health. 2023.107888

Emissions 210

Emissions Diesel London Environment 210

Green Car Congress

FEBRUARY 11, 2021

Our findings add to evidence that subways expose millions of commuters and transit employees to air pollutants at levels known to pose serious health risks over time. Although iron is largely nontoxic, some forms of organic carbon have been linked to increased risk of asthma, lung cancer, and heart disease, the study authors say.

New York 418

New York Philadelphia New Jersey New York City 418

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. Mullite is not only easier to produce than platinum, but also better at reducing pollution in diesel engines. Kyeongjae Cho. CO 2 + 2NO, NO 2 + C?CO

Exhaust 240

Exhaust Diesel Dallas Conversion 240

Green Car Congress

DECEMBER 6, 2017

Exposure to air pollution on city streets is enough to counter the beneficial health effects of exercise in adults over 60, according to new research led by Imperial College London and Duke University. Our research suggests that we might advise older adults to walk in green spaces, away from built-up areas and pollution from traffic.

London 150

London Pollution Environment Exhaust 150

Green Car Congress

NOVEMBER 13, 2016

The method could be used as an automatic tool, and could act as an early warning system for dangerous pollution levels and potential technical problems, said Assistant Professor Ying Sun from the University’s Computer, Electrical and Mathematical Science and Engineering Division. Khadraoui, S. &

Ozone 150

Ozone Saudi Arabia Pollution France 150

Green Car Congress

FEBRUARY 9, 2017

Diesel-powered commuter trains may expose their passengers to elevated levels of certain black carbon and ultrafine particles, especially in the coach directly behind the locomotive, according to a new study from researchers at the University of Toronto. A paper on the study is published in the journal Atmospheric Environment. 2017.02.015.

Exhaust 150

Exhaust Diesel Power Powered 150

Green Car Congress

JULY 18, 2022

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The test fleet showed statistically significant effects for some pollutants, but not for others.

Fuel Economy 186

Fuel Economy Economy Fuel Ozone 186

Green Car Congress

APRIL 28, 2015

A trio of recently published studies from a team of University of Toronto engineers has found that air pollution could be spreading up to three times farther than thought, contributing to varying levels of air quality across cities. We used to think that living near a major road meant that you lived near a lot of air pollution.

Pollution 150

Pollution Emissions Canada 2015 150

Green Car Congress

JANUARY 27, 2015

The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. Earlier post.) Earlier post.)

Exhaust 150

Exhaust Diesel Engine 2007 150

Green Car Congress

JULY 11, 2011

A UCLA study of the performance of retrofit systems for diesel-powered school buses has found that while the systems significantly lowered tailpipe emissions, there was no unequivocal decrease for in-cabin air pollutants after retrofitting. and BC (black carbon). The combination of both increased the efficiency to 33%.

Pollution 259

Pollution Emissions Diesel Exhaust 259

Green Car Congress

NOVEMBER 22, 2009

Air pollution may pose an important but largely overlooked health concern for people living near smaller regional airports, according to a new study published in the ACS journal Environmental Science & Technology. Aircraft exhaust includes pollutants linked to a variety of health problems. ” Resources.

Pollution 199

Pollution Neighborhood 2008 Exhaust 199

Green Car Congress

FEBRUARY 5, 2015

While that report projected vessel activity, it did not explore the environmental impacts of increased shipping in terms of air emissions or the potential climate impacts from increases in short-lived climate pollutants such as black carbon. Click to enlarge. ships diverting from prior routes to Arctic routes. Regulatory background.

Pollution 150

Pollution Emissions Mariner Fuel 150

Green Car Congress

OCTOBER 1, 2019

Freight transportation is a pillar of the US national economy, but while long-haul trucks account for less than 6% of the vehicle miles traveled over US highways, they account for about 40% of the emissions of air polluting particulate matter and about 55% of nitrogen oxides, the precursor to ozone in the atmosphere, the study said.

Emissions 286

Emissions Diesel Ozone United States 286

Green Car Congress

FEBRUARY 27, 2009

Globally, commercial ships emit almost half as much particulate matter pollutants into the air as the total amount released by the world’s cars, according to a new study led by NOAA and the University of Colorado at Boulder. Ship pollutants affect local air quality and the health of people living along coastlines. Earlier post.).

Pollution 150

Pollution Commercial Exhaust Cleaner 150

Green Car Congress

DECEMBER 16, 2009

Highway barriers erected along roadways to block the sound and sight of traffic for the adjoining neighborhoods may also be reducing the amount of pollutants, such as soot from diesel exhaust, reaching area residents, according to a study by NOAA and the US Environmental Protection Agency (EPA). Dennis Finn. Dennis Finn, Kirk L.

Pollution 170

Pollution EPA Idaho Neighborhood 170

Green Car Congress

FEBRUARY 15, 2016

BMEL’s central project-coordinating agency in the area of renewable resources, is funding a 3-year study of oxymethylene ethers (OME) as clean diesel fuels with €800,000 (US$894,000). Oxymethylene ethers (OME) are synthetic compounds of carbon, oxygen, and hydrogen (CH 3 O(CH 2 O)nCH 3 ). Ford is currently leading a €3.5-million

Diesel 150

Diesel Clean Cleaning Germany 150

Green Car Congress

DECEMBER 4, 2013

For a number of the most important pollutants, levels were substantially lower than required by regulations. Emissions of carbon monoxide and hydrocarbons were also significantly below required 2010 levels: 97% and more than 99.9%, respectively. All emissions characterization for ACES is being overseen by CRC. Background.

Diesel 296

Diesel Emissions 2004 San Antonio 296

Green Car Congress

AUGUST 29, 2013

In a state-by-state analysis, the researchers found that California suffers the worst health impacts from air pollution, with about 21,000 early deaths annually, mostly attributed to road transportation and to commercial and residential emissions from heating and cooking. 2000 (90% CI: 0–4,000) early deaths from ozone, according to the study.

MIT 378

MIT Emissions Ozone Power 378

Green Car Congress

AUGUST 1, 2017

Oxymethylene ethers are synthetic compounds of carbon, oxygen, and hydrogen (CH 3 O(CH 2 O) n CH 3 ). Due to their high oxygen concentration, they suppress pollutant formation in combustion. As diesel fuels, they reduce the emission of carbon black and NO x. A 15% OME blend reduces CO 2 emissions by approximately 8g/km.

Diesel 150

Diesel Fuel Exhaust 2016 150

Green Car Congress

FEBRUARY 22, 2018

The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology. Yang et al.

Gasoline 253

Gasoline Emissions Engine Fuel Economy 253

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., Furthermore, as chain length increases with the addition of carbons, cetane number increases.

Diesel 236

Diesel Pollution Fuel Emissions 236

Green Car Congress

NOVEMBER 27, 2013

Based on on-road measurements in their study, a team from the University of California Berkeley has estimated that, as of 2010, light-duty (LD) gasoline vehicles were responsible for 85% of CO; 18% of NO x ; 18% of organic aerosol (OA); and 6% of black carbon (BC) emissions from on-road motor vehicles in the United States.

Gasoline 239

Gasoline Emissions Diesel San Francisco 239

Green Car Congress

AUGUST 8, 2016

to analyze collocated measurements at one site for a suite of pollutants to compare impacts across pollutants. This suggested that buoyant aircraft exhaust plumes were the likely source, the team said. Except for oxides of nitrogen, other pollutants were not correlated with flight activity. Resources. Hudda et al.

Boston 150

Boston Wind Pollution Exhaust 150

Green Car Congress

FEBRUARY 22, 2017

Toyota Motor Corporation announced the commercial availability of a new, smaller three-way catalyst for the treatment of NO x , CO and unburned hydrocarbons from gasoline engines that uses 20% less precious metal in approximately 20% less volume, while maintaining the same exhaust gas purification performance. Click to enlarge.

Exhaust 150

Exhaust Toyota Gas Lexus 150