Diesel, Gasoline, Ozone and Study

HEI launches two new non-tailpipe particulate emission studies

Green Car Congress

JANUARY 8, 2023

The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.

Emissions

Emissions Pollution Exhaust London

Renault makes public its lifecycle study of Fluence ICE vs Fluence EV

Green Car Congress

JULY 11, 2013

Renault recently made public the findings of an internal study, published first in October 2011, detailing and comparing the lifecycle assessments (LCAs) of the battery-electric and two internal combustion engined versions (gasoline and diesel) of the Renault Fluence. Renault assessed the diesel Fluence dCi (1.5L

Li-ion

Li-ion Gasoline-Electric Ozone Diesel

NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

Green Car Congress

AUGUST 9, 2012

In California’s Los Angeles Basin, levels of volatile organic compounds (VOCs) pollutants have decreased by about 98% since the 1960s, even as area residents now burn approximately three times as much gasoline and diesel fuel. This indicates that the main VOC source in the LA basin is likely gasoline vehicle emission.

Los Angeles

Los Angeles Gasoline Ozone 2002

Study uncovers role of longer-chain unburned hydrocarbon emissions from diesels in London air pollution; calls for regulatory shift

Green Car Congress

SEPTEMBER 27, 2015

The study found that 60% of the winter primary hydrocarbon hydroxyl radical reactivity in London is from those diesel-related hydrocarbons; the authors predicted that the longer-chain HCs contribute up to 50 % of the ozone production potential in London. —Dunmore et al. Dunmore et al.

London

London Pollution Diesel Emissions

Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

Green Car Congress

MAY 1, 2018

NO x emissions have not been decreasing as expected in recent years (2011–2015) when comparing top-down estimates from satellites and surface NO 2 measurements to the trends predicted from the US Environmental Protection Agency’s emission inventory data, according to a new study by an international team of researchers.

Emissions

Emissions Ozone Pollution EPA

Reduction in diesel carbonyl emissions using F-T fuel from coal

Green Car Congress

MAY 29, 2014

Other research has shown that carbonyls directly influence physiological response to diesel exhaust particles and can also contribute to secondary organic aerosol formation. In the Tianjin study, they team fueled a four-cylinder light-duty diesel engine fueled with CFT and DF, identifying 13 individual carbonyl compounds in the exhaust.

Coal

Coal Diesel Emissions Fuel

Why Schools Should Electrify Their Bus Fleets

Blink Charging

SEPTEMBER 12, 2023

The transition away from gasoline and diesel vehicles to electric vehicles (EVs) is going full throttle in the United States, and that includes the iconic yellow school bus. Roughly half a million school buses transport about 20 million students each school day in the United States, and nearly all those buses currently run on diesel.

Fleet

Fleet Pollution Diesel Ozone

Pollution plumes in Paris air are richer in gaseous aromatic compounds than in LA; gasoline engines main source of VOCs

Green Car Congress

APRIL 19, 2013

A study by a team of researchers from France and the US found that the origin of volatile hydrocarbons, other than methane, present in city air is mainly gasoline-powered vehicles. They therefore concluded that gasoline engines are probably the main source of volatile hydrocarbons in both cities.

Los Angeles

Los Angeles Pollution Gasoline Engine

Study finds air quality models significantly underestimate traffic as source of NOx in Europe

Green Car Congress

JUNE 1, 2017

Traffic contributes more to NO x emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. A large number of new studies have recently been published suggesting that emission levels from test stands have to be adjusted upwards. The majority of the emissions is caused by diesel cars.

Europe

Europe Diesel Emissions Pollution

PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

Green Car Congress

MAY 17, 2020

Deterioration of the ozone layer [kg CFC-11-eq.]. A recent PSI study led by environmental scientist Christian Bauer found that a battery electric car is already the most environmentally friendly option in Switzerland and many other countries, even when the manufacture of the battery is figured in. —Romain Sacchi.

Mariner

Mariner Climate Change DC Cars

UC Davis Begins $2.8M Studies on Impacts of Escaped Nitrogen

Green Car Congress

JUNE 13, 2009

million in new grants to study the use and impacts of escaped nitrogen from agricultural production. Farm machines burning oil, gasoline and diesel release nitrogen to the air. University of California, Davis researchers will receive $2.8 Wastes from cattle, chickens and other livestock include nitrogen.

Davis

Davis Escape Ozone California

Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

Green Car Congress

JULY 29, 2010

Controlling soot from fossil fuels and solid biofuels may be a faster method of reducing Arctic ice loss and global warming than other options, including controlling CH 4 or CO 2 , although all controls are needed, according to a new study by Dr. Mark Z. The study will be published this week in Journal of Geophysical Research (Atmospheres).

Global

Global Ozone CO2 Pollution

Study Finds Current Swedish Biofuels Offer Major Climate Benefits; Biogas from Manure the Best

Green Car Congress

MAY 25, 2010

A study by researchers at Lund University in Sweden found that Swedish biofuels produce between 65 and 148% less greenhouse gas emissions than gasoline and diesel, even when direct and indirect land use changes are taken into account. Direct and indirect land use changes were also studied. (A A hat-tip to John!).

Climate

Climate Waste Climate Change Sweden

Tohoku team finds swirling ammonia in combustion chambers can help reduce NO emissions

Green Car Congress

OCTOBER 15, 2018

This study simulated bluff body stabilized non-premixed turbulent ammonia (NH 3 )/air flames using swirling flows. This study also found that the effect of pressure on NO emissions is significant irrespective of the combustion type, because reducing the OH radical concentration in NH 3 /air flame at high pressure limits the NO generation.

Emissions

Emissions Hydrogen Fuel Global

UNEP Report Calls for More Sophisticated Approach to Developing Biofuels; Limitations of Current LCA Studies

Green Car Congress

OCTOBER 19, 2009

Here, RME show advantages for primary energy and GHG, but disadvantages in terms of acidification, eutrophication and ozone depletion. An important analytical issue that needs to be addressed, the report notes, is the lack of lifecycle assessment studies focusing on a wider set of environmental impact indicators than greenhouse gas emissions.

Ozone

Ozone Water Emissions Oil

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

Green Car Congress

MAY 2, 2016

Accordingly, there have been a number of recent studies working to assess the impact of non-exhaust emissions from EVs and suggesting a regulatory or policy response (e.g., A 2014 study by Weinbruch et al. Compared to earlier studies, Weinbruch et al. A new Rotterdam-specific study by a pan-European team (Tobollik et al.

Exhaust

Exhaust Emissions Belgium Gasoline-Electric

Plug-in Hybrid Study: Electricity Better

Plugs and Cars

JULY 19, 2007

The basic question addressed, which appears on the study homepage (epri-reports.org) is this: How would air quality and greenhouse gas emissions be affected if significant numbers of Americans drove cars that were fueled by the power grid? And the grid is getting cleaner and more renewable every year. I truly hope we have turned a corner.

Plug-in

Plug-in EPRI Plug Sierra

Berkeley study identifies diesel as main source of vehicular secondary organic aerosols

Green Car Congress

OCTOBER 23, 2012

Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. SOA contributions from the two sources are equivalent at 6% diesel fuel use. The United States and California state averages shown are based on total on- and off-road use. The urban areas in California shown are for on-road fuel use only.

Diesel

Diesel Los Angeles Exhaust Gasoline

National Research Council report finds it unlikely the US will meet cellulosic biofuel mandates absent major innovation or a change in policies

Green Car Congress

OCTOBER 4, 2011

All volumes, except for volumes of biomass-based diesel, are in gallons of ethanol-equivalent. The consumption mandate for biomass-based diesel is to be met on a biodiesel-equivalent basis. The study was sponsored by the US Department of Agriculture, US Department of Energy, and US Environmental Protection Agency.

Renewable

Renewable Tax Credit Conversion Fuel

California ARB LEV III Concept Targeting Fleet-Average SULEV-Level Emissions Performance from New Vehicles by MY 2022

Green Car Congress

FEBRUARY 11, 2010

Regarding future Greenhouse Gas (GHG) emission regulations (Pavley 2), staff is evaluating studies of the feasibility and cost of advanced technologies to reduce GHG emissions that could achieve widespread sales and acceptance in the 2017-2025 timeframe. Since gasoline vehicles emit generally at or below 1.0

Emissions

Emissions Fleet California Vehicles

Up close and personal with Volkswagen’s e-Golf carbon offset project: Garcia River Forest

Green Car Congress

JUNE 8, 2015

However, in a case study of the Forest Stewardship Council’s (FSC) work and the Mendocino Redwood Company (MRC), Greenpeace noted that: Areas that were clearcut by MRC’s predecessor now have excessive amounts of tanoak, a fast-sprouting species that competes with redwoods and Douglas fir, and is not commercially viable for MRC as a wood product.

Carbon

Carbon Personal Store Emissions

National Academies release third review of the 21st Century Truck Partnership

Green Car Congress

SEPTEMBER 14, 2015

The fundamental diesel engine research program pursuing advanced technologies and combustion processes and engine architectures to achieve 55 percent BTE should continue to be a focus of the 21CTP engine activities. If necessary, the next-generation code development should be adjusted.

MPG

MPG Miles 2009 Fuel

Study finds climate impact of long distance trip can vary by factor of 10 depending upon mode, efficiency and occupancy

Green Car Congress

JUNE 27, 2013

Among the findings of the study, published in the ACS journal Environmental Science & Technology , is that a car’s fuel efficiency and occupancy are central to whether the impact from a trip is as high as from air travel or as low as from train travel. In their study, Borken-Kleefeld et al. shorter-lived climate forcers (SLCFs).

Climate

Climate Diesel Emissions Climate Change

National Academies Report Examines Hidden Cost of Energy Production and Use in US; Estimates $120B in 2005

Green Car Congress

OCTOBER 22, 2009

A new report from the National Research Council examines and, when possible, estimates, “hidden” costs of energy production and use—such as the damage air pollution imposes on human health—that are not reflected in market prices of coal, oil, other energy sources, or the electricity and gasoline produced from them. cents to about 1.7

2005

2005 Cost Of Energy Coal

EV Driven

HEI launches two new non-tailpipe particulate emission studies

Renault makes public its lifecycle study of Fluence ICE vs Fluence EV

NOAA, partners find about 98% decline in VOCs concentrations in LA Basin over last 50 years despite 3x increase in use of gasoline and diesel

Study uncovers role of longer-chain unburned hydrocarbon emissions from diesels in London air pollution; calls for regulatory shift

Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

Reduction in diesel carbonyl emissions using F-T fuel from coal

Why Schools Should Electrify Their Bus Fleets

Pollution plumes in Paris air are richer in gaseous aromatic compounds than in LA; gasoline engines main source of VOCs

Study finds air quality models significantly underestimate traffic as source of NOx in Europe

PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

UC Davis Begins $2.8M Studies on Impacts of Escaped Nitrogen

Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

Study Finds Current Swedish Biofuels Offer Major Climate Benefits; Biogas from Manure the Best

Tohoku team finds swirling ammonia in combustion chambers can help reduce NO emissions

UNEP Report Calls for More Sophisticated Approach to Developing Biofuels; Limitations of Current LCA Studies

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

Plug-in Hybrid Study: Electricity Better

Berkeley study identifies diesel as main source of vehicular secondary organic aerosols

National Research Council report finds it unlikely the US will meet cellulosic biofuel mandates absent major innovation or a change in policies

California ARB LEV III Concept Targeting Fleet-Average SULEV-Level Emissions Performance from New Vehicles by MY 2022

Up close and personal with Volkswagen’s e-Golf carbon offset project: Garcia River Forest

National Academies release third review of the 21st Century Truck Partnership

Study finds climate impact of long distance trip can vary by factor of 10 depending upon mode, efficiency and occupancy

National Academies Report Examines Hidden Cost of Energy Production and Use in US; Estimates $120B in 2005

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