Green Car Congress

FEBRUARY 18, 2019

Cooking, cleaning and other routine household activities generate significant levels of volatile and particulate chemicals inside the average home, leading to indoor air quality levels on par with a polluted major city, according to a study by researchers at the University of Colorado Boulder. Earlier post.).

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Pollution Ozone Clean Cleaning 207

Green Car Congress

FEBRUARY 16, 2018

The results, published in an open-access paper in the journal Science , suggest that the focus of efforts to mitigate ozone formation and toxic chemical burdens need to be adjusted, the authors suggested. Even so, lotions, paints and other products contribute about as much to air pollution as does the transportation sector.

Pollution 264

Pollution Transportation Production Los Angeles 264

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. Cliff et al.

Emissions 397

Emissions Exhaust Cars Ozone 397

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.

Emissions 353

Emissions Pollution Exhaust London 353

Green Car Congress

NOVEMBER 17, 2009

A University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters. Emerging contaminants, such as wastewater polluted with medications and personal care products.

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Ozone Water Oil-Sands Oil 199

Green Car Congress

MARCH 29, 2017

CHIE participants are exposed to one or several common air pollutants usually for a few hours at concentrations that are not expected to produce adverse responses. The NAAQS process has broad health importance because it regulates the outdoor air concentrations of those pollutants. 2009 to Oct.

Pollution 150

Pollution Ozone EPA San Francisco 150

Green Car Congress

DECEMBER 19, 2012

Boxes represent pollution reading locations during that window. Computer scientists at the University of California, San Diego have built a portable pollution sensors that transmit transmit their air quality readings to smart phones, allowing users to monitor air quality in real time. Nikzad et al. Click to enlarge.

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Pollution San Diego Ozone 2012 236

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 150

Pollution 2016 Exhaust Ozone 150

Green Car Congress

OCTOBER 28, 2010

The two combine in the atmosphere to make either nitric acid or peroxynitrous acid; the so-called branching ratio of these two chemicals is important in models of ozone production. has fully characterized a key chemical reaction that affects the formation of pollutants in smoggy air in urban areas. Credit: Caltech/Mitchio Okumura.

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Ozone Los Angeles Pollution California 210

Green Car Congress

FEBRUARY 12, 2016

New research shows that household (indoor) and outdoor air pollution contribute to more than 5.5 In the context of the Global Burden of Disease 2013 study ( earlier post ), researchers from Canada, the United States, China and India quantified air pollution levels and attributable health impacts for 188 countries for the period 1990-2013.

Pollution 150

Pollution Coal Asia India 150

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.

London 150

London Pollution Diesel Emissions 150

Green Car Congress

JULY 18, 2022

The study was performed by a team from the University of California at Riverside (UCR) Bourns College of Engineering – Center for Environmental Research and Technology (CE-CERT). One hybrid electric vehicle (HEV) equipped with a PFI engine was also used. California currently limits the ethanol content of gasoline to 10 percent.

Fuel Economy 186

Fuel Economy Economy Fuel Ozone 186

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

MAY 1, 2018

They found that levels of pollutants that can contribute to the formation of ground-level ozone, or smog, have failed to continue a fairly steady decline as estimated by the US Environmental Protection Agency. The researchers analyzed extensive satellite and ground-based measurements of nitrogen oxides and carbon monoxide.

Emissions 150

Emissions Ozone Pollution EPA 150

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. VOCs, primarily emitted from the tailpipes of vehicles, are a key ingredient in the formation of ground-level ozone which, at high levels, can harm people’s lungs and damage crops and other plants.

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Los Angeles Gasoline Ozone 2002 285

Green Car Congress

MAY 15, 2017

in collaboration with scientists at the University of York’s Stockholm Environment Institute (SEI); University of Colorado; and the International Institute for Applied Systems Analysis, assessed 30 studies of vehicle emissions under real-world driving conditions in 11 major vehicle markets representing 80% of new diesel vehicle sales in 2015.

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Diesel International Emissions Ozone 230

Green Car Congress

JUNE 27, 2011

The flights will be supported by the US Environmental Protection Agency (EPA) and will aid EPA in monitoring pollutants. The fundamental challenge for satellites measuring air quality is to distinguish between pollution near the surface and pollution higher in the atmosphere. Measuring pollution from space.

Ozone 186

Ozone Maryland Pollution Baltimore 186

Green Car Congress

JUNE 27, 2017

According to a new study led by a team at Duke University, airborne particulate matter and dust are cutting solar photovoltaic energy output by more than 25% in certain parts of the world, with roughly equal contributions from ambient PM and PM deposited on photovoltaic surfaces. Credit: ACS, Bergin et al. Click to enlarge.

Solar 218

Solar Energy Global Production 218

Green Car Congress

JUNE 26, 2015

John Wall, Vice President and Chief Technical Officer of diesel engine manufacturer Cummins Inc., Wall for his leadership role in the development and implementation of all the major technology advancements ultimately leading to the near-zero levels of emissions of particulate matter and oxides of nitrogen from engines. Dr. Kirk R.

Climate Change 150

Climate Change Pollution Climate Ozone 150

Green Car Congress

JANUARY 27, 2015

exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. The study exposed laboratory rats 80 hours a week, for up to 30 months, to emissions from a heavy-duty diesel engine meeting 2007 US EPA standards using new filters and other control technology.

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Exhaust Diesel Engine 2007 150

Setec Powerr

AUGUST 20, 2021

million is coming to 26 government agencies, universities, and electric utilities in Louisiana. Volkswagen sold about 590,000 vehicles equipped with devices that defeated their pollution control features, leading to increased emissions of oxide. Xavier University, two light-duty chargers, one fast charger, $47,200.

Electric Vehicles 52

Electric Vehicles Louisiana Charging Grant 52

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. It has been a challenge to determine how much each polluter contributes to the emission output. The majority of the emissions is caused by diesel cars.

Europe 150

Europe Diesel Emissions Pollution 150

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.

Pollution 150

Pollution Vehicles North Carolina Diesel 150

Cars That Think

DECEMBER 19, 2021

Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather?

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Ozone Solar Climate Change Climate 119

Green Car Congress

SEPTEMBER 9, 2012

In addition to CO 2 , other compounds such as ozone (O 3 ) precursors (nitrogen oxides (NO x =NO+NO 2 ), carbon monoxide (CO), and volatile organic compounds (VOCs)) and aerosols such as black carbon (BC) and organic carbon (OC) are emitted by ships. 1 from shipping in 2007, corresponding to 3.3% 1 of the total ship emissions in 2007.

Climate 240

Climate Emissions Ozone 2007 240

Green Car Congress

MAY 2, 2016

the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. As reported earlier here ( earlier post ) a recent literature review by a team from the University of Edinburgh (Timmers et al. Regulatory regimes seeking to reduce emissions from transport have largely focused on tailpipe emissions—i.e., in Belgium.

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Exhaust Emissions Belgium Gasoline-Electric 150

Green Car Congress

OCTOBER 20, 2012

L engines at idle. A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 L) diesel engines at idle and load, using a biodiesel blend (B20) and conventional ultralow sulfur diesel (ULSD) fuel. L/2004 calibration engines.

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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.

Fleet 207

Fleet Engine Global Fuel Economy 207

Green Car Congress

SEPTEMBER 1, 2012

Black carbon is part of a group of pollution sources known as Short-Lived Climate Forcers (SLCFs), including methane gas and ozone, which are produced on earth. Cappa, a professor of engineering at the University of California, Davis, and Timothy B. Earlier post.). Led by principal investigators Christopher D.

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Climate Climate Change Carbon Boston 261

Cars That Think

JULY 20, 2021

A scholarly literature has documented this process in fields as diverse as engineering, risk reduction, management, and urban studies. Photo-Illustration: Chad Hagen; Original Photo: Universal Images Group/Getty Images. Indeed, throughout history humanity has learned much from disasters, wars, financial ruin—and pandemics.

Chad 98

Chad London Iceland Ozone 98

Green Car Congress

APRIL 1, 2009

heavy duty on-road vehicles, off-road vehicles, locomotives, marine and aviation engines. The draft requires states to establish goals for reducing global warming pollution from the transportation sector and requires large metropolitan planning organizations to submit transportation plans to meet those goals. light duty vehicles—e.g.,

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Climate Standards Carbon California 186

Cars That Think

DECEMBER 16, 2022

But rather than giving into despair, some engineers, policymakers, and activists are pursuing a novel strategy. There is an exception to that in the category of what they call super pollutants, the very powerful but shorter-lived gases and chemicals that come from things like fertilizer production, methane. They also mix with clouds.

Climate 73

Climate IDEA Mariner Carbon 73

Cars That Think

SEPTEMBER 7, 2021

Take, for example, the tens of thousands of fossil-fueled ships that chug across the ocean, spewing plumes of pollutants that contribute to acid rain, ozone depletion, respiratory ailments, and global warming. Kate Murphy leads the engineering effort for the MCB project at PARC, the Xerox research lab in Silicon Valley.

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Climate Climate Change Solar Mariner 145