Green Car Congress

OCTOBER 6, 2018

A study led by environmental health scientists at Columbia University Mailman School of Public Health examined the release of vapors from gasoline station vent pipes, and found benzene emissions were 10 times higher than estimates used in setback regulations that determine how close schools, playgrounds, and parks can be to the facilities.

Gasoline 365

Gasoline New York City Pollution Gas 365

Green Car Congress

MARCH 25, 2020

This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. New research led by the University of Washington (UW) is the first to measure this phenomenon’s effect over years and at a regional scale. Michael Diamond/University of Washington.

Emissions 223

Emissions Pollution 2003 Climate 223

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., Furthermore, the number of ships equipped with scrubbers have tripled since the study was carried out. Ytreberg et al.

Exhaust 170

Exhaust Emissions Mariner Gas 170

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

MARCH 6, 2022

Small particles from tires inhibit the growth and cause adverse behavioral changes in organisms found in freshwater and coastal estuary ecosystems, according to two new Oregon State University studies. The researchers cite studies that show during the lifetime of an automobile tire. Credit: John Dickens.

Oregon 415

Oregon Environment Pollution Grant 415

Green Car Congress

APRIL 4, 2012

The first real-world, head-to-head comparison of improved cookstoves (ICs) and traditional mud stoves has found that some ICs may at times emit more of the black carbon particles that are linked to serious health and environmental concerns than traditional mud stoves or open-cook fires. —Kar et al.

Pollution 231

Pollution Carbon San Diego Los Angeles 231

Green Car Congress

MAY 21, 2020

Now—almost five years later—a study by the University of York and Empa shows that the retrofitting was successful from an environmental point of view. Stuart Grange works in Empa’s Air Pollution/Environmental Technology Laboratory and also at the Wolfson Atmospheric Chemistry Laboratories at the University of York.

Diesel 207

Diesel Engine Exhaust Emissions 207

Green Car Congress

JANUARY 12, 2013

The team chose to conduct the study at the provincial level because using national average data might severely underestimate or overestimate results for technologies that primarily operate in designated cities—i.e., The original reason for developing EVs and CNGVs is to substitute oil, not to reduce emissions of GHGs or any pollutant.

Coal 231

Coal Pollution China Gas 231

Green Car Congress

MARCH 16, 2012

previous studies have followed the general framework of life cycle assessment (LCA), they have focused almost exclusively on quantifying the energy balance and GHG emissions associated with biofuels production. For gasoline, the study reflects the US context in which crude oil is to a large extent imported and refined domestically.

Gasoline 357

Gasoline Water Emissions Minnesota 357

Green Car Congress

MAY 5, 2014

Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). Ozone pollution also damages crops and other plants. Ozone formation.

Ozone 199

Ozone Climate Change Pollution Climate 199

Green Car Congress

APRIL 18, 2018

Seven billion people, more than 95% of the world’s population, lived in areas exceeding the WHO Guideline for healthy air in 2016, according to a new global study. Comparison of 2016 annual average PM 2.5 Millions of people around the world are also exposed to air pollution in their homes arising from the use of solid fuels (e.g.,

Pollution 218

Pollution Coal 2016 India 218

Green Car Congress

AUGUST 17, 2015

Researchers at the University of Toronto have found that natural sunlight triggers the release of smog-forming NO x compounds from the grime that typically coats buildings, statues and other outdoor surfaces in urban areas. In yet another study, they exposed grime to either artificial sunlight or kept it in the dark.

Ozone 150

Ozone Germany Canada IDEA 150

Green Car Congress

APRIL 24, 2011

Comparison of optimized start of injection of advanced diesel combustion for brake thermal efficiency, NO x , PM, THC, and CO of diesel (open bar); HTFT (gray bar); and LTFT (black bar) fuels. THC and CO as well as NO x and PM—according to research by a team from The Pennsylvania State University. Credit: ACS, Lilik and Boehman.

Diesel 236

Diesel Pollution Fuel Emissions 236

Green Car Congress

AUGUST 13, 2013

Cutting the amount of short-lived, climate-warming emissions such as soot and methane won’t limit global warming as much as previous studies have suggested, according to a new study from the Joint Global Change Research Institute in College Park, Md., degree reduction found in earlier studies. —Smith and Mizrahi.

Climate 199

Climate Pollution Carbon Emissions 199

Green Car Congress

FEBRUARY 4, 2014

The study, which was carried out by University of Toronto Scarborough Environmental Chemistry professor Frank Wania and his PhD candidate Abha Parajulee, is published as an open access paper in the Proceedings of the National Academy of Science. Tailing ponds are not the end of the journey for the pollutants they contain.

Oil-Sands 220

Oil-Sands Oil Emissions Pollution 220

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. Pang et al. Resources.

Pollution 150

Pollution Vehicles North Carolina Diesel 150

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.

Engine 271

Engine Exhaust Gasoline Diesel 271

Green Car Congress

AUGUST 17, 2012

In contrast, no decrease in sulfur dioxide was observed in the Mediterranean harbor of Tunis, and there was no reduction in any of the other air pollutants that were measured in all four harbors (Civitavecchia, Savona, Palma de Mallorca and Tunis). By comparison, the sulphur content of fuels used in road vehicles must not exceed 0.001%.

Emissions 250

Emissions Pollution 2010 2012 250

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.

Exhaust 150

Exhaust Diesel Power Powered 150

Green Car Congress

APRIL 30, 2019

A new study analyzing data from the 29 states and District of Columbia with mandatory RPS policies finds that the policies come at a high cost to consumers and are inefficient in reducing carbon emissions. billion more for electricity than they would have in the absence of the policy. However, these reduced emissions came at a high cost.

Renewable 207

Renewable Price District of Columbia Chicago 207

Green Car Congress

MAY 4, 2016

A study by researchers from the University of Denver and the University of Puget Sound indicates that high-mileage light-duty fleets contribute higher emissions and emissions share than expected based on their actual numbers in the fleet. In their study, Bishop et al. In their study, Bishop et al.

Emissions 150

Emissions Fleet Light Taxi 150

Green Car Congress

SEPTEMBER 7, 2009

An international study of 10 global cities found that a balance of geophysical factors (climate, access to resources, and gateway status) and technical factors (power generation, urban design, and waste processing) determine the greenhouse gas emissions (GHGs) attributable to cities. Julia Steinberger, University of Klagenfurt.

Emissions 199

Emissions Global Gas Los Angeles 199

Green Car Congress

SEPTEMBER 24, 2012

Comparisons of life-cycle emissions from LUC phase for (a) sugar cane ethanol and (b) soybean biodiesel. The pollutants are NMHC, CO, NO x , TPM, PM 2.5 The climate effects of land-use changes from increasing biofeedstock acreage, both indirect and direct, have dominated policy discussion, and focused on comparisons in long-lived GHGs.

Gasoline 273

Gasoline Emissions Diesel Brazil 273

Green Car Congress

AUGUST 9, 2012

A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. Between 2002 and 2010 alone, the concentration of VOCs dropped by half, according to a new study by NOAA scientists and colleagues, published in the AGU’s Journal of Geophysical Research. ppbv/ppmv to 10.7

Los Angeles 285

Los Angeles Gasoline Ozone 2002 285

Green Car Congress

SEPTEMBER 1, 2012

Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science. Credit: Cappa et al. Click to enlarge. Earlier post.).

Climate 261

Climate Climate Change Carbon Boston 261

Green Car Congress

JANUARY 15, 2012

The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. The study by Thiruvengadam et al. The fuel used in the study was Ultra Low Sulfur Diesel (ULSD) with sulfur concentration not exceeding 10 ppm. Credit: ACS, Thiruvengadam et al.

Exhaust 218

Exhaust Diesel West Virginia 2007 218

Green Car Congress

MAY 27, 2015

A study by Carnegie Mellon University researchers comparing life cycle greenhouse gas (GHG) emissions from different natural gas pathways for medium and heavy-duty vehicles (MHDVs) found that the GHG reduction potentials of the pathways vary sharply between non-Class 8 MHDVs (e.g., Study system boundary of natural gas pathways.

Gas 150

Gas Diesel Gas-Electric Emissions 150

Green Car Congress

OCTOBER 7, 2012

Researchers at the Norwegian University of Science and Technology (NTNU) have compared the emissions resulting from the production, use, and end-of-life of electric and internal combustion engine vehicles (EVs and ICEVs) in a full life-cycle analysis (LCA). This has led to a general perception of EVs as an environmentally benign technology.

Gasoline-Electric 309

Gasoline-Electric Vehicles Coal Gasoline 309

Green Car Congress

AUGUST 1, 2011

In a study published in the ACS journal Energy & Fuels , M. Emulsification of diesel with ethanol is one of the possible approaches to improve fuel economy and reduce emissions of pollutants from diesel engines. Comparing fuel consumption with diesel, 50D/50E and 50D/50E + 7% DME. Credit: ACS, Ashok 2011. Click to enlarge.

Diesel 210

Diesel Emissions Fuel 2011 210

Green Car Congress

DECEMBER 5, 2019

Driven by rising natural gas and oil consumption, levels of CO 2 are expected to hit 37 billion metric tons this year, according to new estimates from the Global Carbon Project (GCP), an initiative led by Stanford University scientist Rob Jackson. The group found that the U.S., this year due in part to China’s economic downturn.

Carbon 195

Carbon Global Emissions Climate Change 195

Green Car Congress

NOVEMBER 20, 2009

Barbara Rothen-Rutishauser and Peter Gehr from the University of Bern, Switzerland, and Michael Riediker from the Institute for Work and Health, Lausanne, Switzerland, worked with a team of researchers to study the effects of brake particles on cultured lung cells placed in a chamber close to the axle of a car.

Switzerland 186

Switzerland Cars Exhaust Pollution 186

Green Car Congress

FEBRUARY 8, 2009

A pair of researchers from Purdue University and Rochester Institute of Technology are proposing a new approach to Lifecycle Impact Assessment (LCIA), designed to represent simultaneously multiple weights spaces and the sensitivity of the rank ordering to uncertain or multiple stakeholder values expressing different priorities.

Transportation 150

Transportation Fuel 2009 Gas-Electric 150

Green Car Congress

NOVEMBER 23, 2009

Resulting improved strains of maize may, for example, produce larger yields, show resistance to disease, offer efficiencies in nitrogen use that would enable farmers to reduce applications of costly, polluting fertilizers, and tolerate changes in rainfall or temperature accompanying climate change. Schnable of Iowa State University.

St. Louis 186

St. Louis Iowa Mexico Universal 186

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.

Pollution 231

Pollution Diesel Emissions Engine 231

Green Car Congress

MAY 12, 2017

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. —Saliba et al. of the data.

Fleet 207

Fleet Engine Global Fuel Economy 207

Green Car Congress

JUNE 7, 2017

Engineering researchers at The University of Texas at Austin and colleagues have. demonstrated a measurement approach to for urban air pollution mapping at 4–5 orders of magnitude greater spatial precision than possible with current central-site ambient monitoring. —Apte et al. —Joshua Apte.

Google 170

Google Pollution Oakland Austin 170

Green Car Congress

FEBRUARY 2, 2012

The study’s findings highlight the importance of considering exposures—especially the proximity of emissions to people—when evaluating environmental health impacts for EVs, the team said. note that the focus of their study was motivated in part by the unprecedented rise in popularity of electric two-wheelers in China.

Emissions 252

Emissions China Gasoline-Electric Fleet 252