Diesel, Ozone and Study

York study: Less traffic in first UK lockdown reduced NO2 pollution but caused increase in surface ozone

Green Car Congress

DECEMBER 27, 2020

Less traffic on the roads during the first COVID-19 lockdown in the UK led to a reduction in air pollution but may have caused potentially damaging surface ozone levels to rise, according to a new study led by researchers at the University of York. The problem is being created by the change in chemistry between NO x and O 3.

Ozone

Ozone Pollution 2020 2015

Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

Green Car Congress

MARCH 1, 2019

A new study provides the most detailed picture available to date of the global, regional, and local health impacts attributable to emissions from four transportation subsectors: on-road diesel vehicles; other on-road vehicles; shipping; and non-road mobile engines such as agricultural and construction equipment. Source: The ICCT.

Ozone

Ozone 2015 2010 Exhaust

Study finds propane school buses significantly decrease NOx emissions compared to diesel

Green Car Congress

AUGUST 5, 2019

According to a study commissioned by the Washington, DC-based Propane Education & Research Council (PERC), NO x emissions measured from propane autogas school buses were substantially lower than those measured from diesel school buses. For the stop-and-go route, NO x emissions were 34 times higher for the diesel school bus.

West Virginia

West Virginia Diesel Emissions Virginia

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

Japan, China researchers develop plasma-assisted MnO2 filter that produces zero-NO2, -SO2 diesel exhaust

Green Car Congress

MARCH 8, 2019

This research, published in the journal Separation and Purification Technology , shows that ozone can be used to remove not only SO x but also NO x from fossil fuel combustion exhaust streams. In our previous study, we found that MnO 2 can absorb not only SO 2 but also NO 2 simultaneously. Osaka et al. Osaka et al.

Exhaust

Exhaust Ozone Japan Diesel

Study: curbing diesel emissions could reduce mortality rates in big cities

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

Emissions Diesel Ozone United States

New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

Green Car Congress

MAY 15, 2017

A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. For light-duty vehicles, such as passenger cars, trucks, and vans, the European Union produced nearly 70% of the excess diesel nitrogen oxide emissions.

Diesel

Diesel International Emissions Ozone

UNEP study: small number of measures targeting black carbon and tropospheric ozone could yield immediate climate benefits

Green Car Congress

FEBRUARY 22, 2011

Widespread implementation is achievable with existing technology but would require significant strategic investment and institutional arrangements, the study found. Widespread implementation is achievable with existing technology but would require significant strategic investment and institutional arrangements, the study found.

Ozone

Ozone Climate Carbon Climate Change

Study provides more insight into air pollution mechanisms that cause cardiovascular diseases

Green Car Congress

AUGUST 24, 2018

course, fine, ultrafine particles) and gaseous pollutants such as ozone, on vascular function. Here, we provide an updated overview of the impact of particulate and gaseous pollutants on endothelial function from human and animal studies. —Münzel et al.

Pollution

Pollution Insight Ozone Cleveland

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

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 dCi (66 kW).

Li-ion

Li-ion Gasoline-Electric Ozone Diesel

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

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.) —ACES report.

Exhaust

Exhaust Diesel Engine 2007

Reducing Black Carbon Emissions and Ground-Level Ozone Would Provide Immediate Benefit Against Climate Change

Green Car Congress

AUGUST 21, 2009

Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. Besides a danger to breathe, ozone lowers crop yields.

Climate Change

Climate Change Ozone Climate Carbon

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

CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

Green Car Congress

DECEMBER 4, 2013

The study, the Phase 2 Report of the comprehensive Advanced Collaborative Emissions Study (ACES). The Phase 2 ACES study was conducted by the Southwest Research Institute in San Antonio, Texas, under the oversight of the CRC. Phase 2 Of The Advanced Collaborative Emissions Study. Diesel Emissions Engines Heavy-duty'

Diesel

Diesel Emissions 2004 San Antonio

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

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

Pollution

Pollution 2016 Exhaust Ozone

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

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

Fast action on black carbon, ozone and methane could help limit global temperature rise to 2 degrees C

Green Car Congress

JUNE 15, 2011

Fast action on pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 2 °C (3.6 °F)—and Diesel particle filters for road and off-road vehicles. for 2030 and beyond. Source: UNEP. °C (2.7

Ozone

Ozone Carbon Climate Change Global

EPHA: Coronavirus threat greater for polluted cities; clean air returning to cities in lockdown

Green Car Congress

MARCH 17, 2020

A 2003 study on victims of the coronavirus SARS found that patients in regions with moderate air pollution levels were 84% more likely to die than those in regions with low air pollution. Even the latest diesel engines emit dangerous levels of pollution. One hotspot is Northern Italy, center of Europe’s Coronavirus outbreak.

Pollution

Pollution Clean Cleaning Italy

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. —lead author Carsten Warneke, Ph.D., —Warneke et al.

Los Angeles

Los Angeles Gasoline Ozone 2002

International study identifies 14 key measures to reduce methane and black carbon emissions; reduction in projected global mean warming of ~0.5 °C by 2050

Green Car Congress

JANUARY 13, 2012

A study by an international team of researchers, led by Drew Shindell of NASA’s Goddard Institute for Space Studies (GISS) in New York City, has identified 14 measures targeting methane and black carbon (BC) emissions that could reduce projected global mean warming ~0.5°C Source: Shindell et al. Click to enlarge.

Carbon

Carbon Ozone Emissions International

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

HEI study finds London Congestion Charging Scheme shows little evidence of improving air quality

Green Car Congress

APRIL 27, 2011

The London Congestion Charging Scheme (CCS)—which charged for travel into central London and reduced traffic volume ( earlier post )—has shown little evidence that it improved air quality as well, according to Part I of a new study published by the Health Effects Institute (HEI). NO 2 was projected to increase slightly, by 0.3

London

London Charging Pollution Diesel

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

GISS study finds applying stricter non-CO2 vehicle emission standards worldwide would yield climate benefits in addition to major health and agricultural benefits

Green Car Congress

APRIL 4, 2011

million metric tons of avoided ozone-related yield losses of major food crops; $US0.6-2.4 Overall, the modeling found that stricter standards would prevent the most deaths in China, India, and North Africa, regions where unfiltered soot-producing diesel engines remain ubiquitous. trillion avoided health damage and $US1.1-4.3

Climate

Climate Standards Emissions Climate Change

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

Study Finds Environmental and Tailpipe Pollutants Benefits in Using Biodiesel in Construction Vehicles

Green Car Congress

JULY 19, 2009

Using biodiesel in construction vehicles offers promising environmental benefits in terms of reduced tailpipe emissions as well as reductions in fuel cycle emissions of selected pollutants, according to a new study by researchers at North Carolina State University. ozone, PM) problems may be less pressing. higher for NO x. Pang et al.

Pollution

Pollution Vehicles North Carolina Diesel

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. The study showed that the proportions of such compounds in Paris air were two to three times greater than in Los Angeles or other European cities studied.

Los Angeles

Los Angeles Pollution Gasoline Engine

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

Air pollution could claim 6.6 million lives per year by 2050, double current rate; small domestic fires and ag the worst offenders

Green Car Congress

SEPTEMBER 17, 2015

million people per year, according to a study carried out by a team led by researchers at the Max Planck Institute for Chemistry in Mainz. Results of the study are published in the journal Nature. In the EU exposure to fine particles and ozone claims 180,000 lives a year, including 35,000 in Germany.

Pollution

Pollution Ozone Saudi Arabia Asia

PNNL team finds correlation between reaction mechanism for zeolite SCR catalyst for NOx aftertreatment and bacterial enzyme catalysis

Green Car Congress

SEPTEMBER 11, 2013

A team of researchers in the Institute for Integrated Catalysis at Pacific Northwest National Laboratory led by chemist János Szanyi has proposed a reaction mechanism for a highly active zeolite catalyst (Cu-SSZ-13) used in selective catalytic reduction (SCR) NO x aftertreatment systems for diesel emissions. —Kwak et al. Feng Gao et al.

Li-ion

Li-ion Diesel 2013 Water

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

Research shows clean fuel-use for ships off California coast extremely effective in reducing sulfur dioxide pollution

Green Car Congress

MAY 16, 2011

The data were gathered during the CalNex 2010 field study organized by ARB and the National Oceanic and Atmospheric Administration (NOAA). Ships, especially ocean-going vessels, are powered by very large diesel engines that generate a tremendous amount of pollution impacting air quality onshore.

Pollution

Pollution California Clean Cleaning

Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

Green Car Congress

OCTOBER 14, 2009

HFCs are powerful greenhouse gases originally developed as substitutes for ozone-depleting chemicals. A binding legal agreement exists that can cut HFCs now—the Montreal Protocol ozone treaty—and many alternatives to HFCs have already been developed and are waiting for the right regulatory incentive from the Montreal Protocol to be deployed.

Climate Change

Climate Change Climate Pollution Ozone

Report argues advanced HD natural gas vehicles foundational for California to hit air and climate goals; near zero-emission potential

Green Car Congress

JANUARY 28, 2014

Compared to the 2010 “Business as Usual” scenario—which includes all adopted emission control measures for the South Coast—NO x levels must be reduced by 65% and by 75% to meet the 2023 and 2032 ozone standards, respectively. An 80% reduction of GHG emissions is targeted for 2050, relative to 1990 levels. Click to enlarge.

Climate

Climate Gas Emissions California

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

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

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. These compounds in un-burned gasoline and diesel fuel dominate vehicular emissions of reactive gas-phase carbon that have the potential to form SOA.

Diesel

Diesel Los Angeles Exhaust Gasoline

ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

Green Car Congress

FEBRUARY 5, 2015

That study provided estimates of vessel traffic (numbers of vessels and transits) based on modeling of current vessel activity patterns, growth potential, and vessel projection scenarios, including diversion from other routes, and oil and gas development. more stringent requirements applicable to ships in Emission Control Areas (ECA).

Pollution

Pollution Emissions Mariner Fuel

Study finds marine workboat engines staying in service two times longer than estimated by EPA; emissions reduction implications

Green Car Congress

MARCH 18, 2019

Commercial workboat engines are staying in service more than two times longer than predicted by the US Environmental Protection Agency (EPA), according to new research from the Diesel Technology Forum (DTF) and Environmental Defense Fund (EDF). This report underscores that more, older engines remain in service today.

Mariner

Mariner EPA Emissions Engine

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 Standards

York study: Less traffic in first UK lockdown reduced NO2 pollution but caused increase in surface ozone

Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

Study finds propane school buses significantly decrease NOx emissions compared to diesel

HEI launches two new non-tailpipe particulate emission studies

Japan, China researchers develop plasma-assisted MnO2 filter that produces zero-NO2, -SO2 diesel exhaust

Study: curbing diesel emissions could reduce mortality rates in big cities

New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

UNEP study: small number of measures targeting black carbon and tropospheric ozone could yield immediate climate benefits

Study provides more insight into air pollution mechanisms that cause cardiovascular diseases

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

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

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Reducing Black Carbon Emissions and Ground-Level Ozone Would Provide Immediate Benefit Against Climate Change

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

CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

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

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

Why Schools Should Electrify Their Bus Fleets

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

Fast action on black carbon, ozone and methane could help limit global temperature rise to 2 degrees C

EPHA: Coronavirus threat greater for polluted cities; clean air returning to cities in lockdown

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

International study identifies 14 key measures to reduce methane and black carbon emissions; reduction in projected global mean warming of ~0.5 °C by 2050

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

HEI study finds London Congestion Charging Scheme shows little evidence of improving air quality

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

GISS study finds applying stricter non-CO2 vehicle emission standards worldwide would yield climate benefits in addition to major health and agricultural benefits

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

Study Finds Environmental and Tailpipe Pollutants Benefits in Using Biodiesel in Construction Vehicles

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

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

Air pollution could claim 6.6 million lives per year by 2050, double current rate; small domestic fires and ag the worst offenders

PNNL team finds correlation between reaction mechanism for zeolite SCR catalyst for NOx aftertreatment and bacterial enzyme catalysis

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

Research shows clean fuel-use for ships off California coast extremely effective in reducing sulfur dioxide pollution

Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

Report argues advanced HD natural gas vehicles foundational for California to hit air and climate goals; near zero-emission potential

Plug-in Hybrid Study: Electricity Better

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

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

ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

Study finds marine workboat engines staying in service two times longer than estimated by EPA; emissions reduction implications

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

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