This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
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.
The emissions catalysts produced there will be used by manufacturers of light duty gasoline vehicles and light and heavy duty diesel vehicles to meet more stringent Euro 6/VI emissions regulations. Among the advanced technologies that will be produced at the ?roda
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.
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).
Under the proposed settlement, lodged with the US District Court for the District of Columbia, Daimler will recall and repair the emissions systems in Mercedes-Benz diesel vehicles sold in the United States between 2009 and 2016 and pay $875 million in civil penalties and roughly $70.3 million in other penalties.
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.
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.
has paid $422,500 in penalties for supplying gasoline and diesel fuel in violation of California regulations designed to protect air quality. million gallons of gasoline in violation of California reformulated gasoline regulations. million gallons of gasoline in violation of California reformulated gasoline regulations.
There are widespread policy assumptions that the phase-out of gasoline and diesel internal combustion engines will over time lead to much reduced emissions of Volatile Organic Compounds (VOCs) from road transport and related fuels. Cliff et al. the products used for “car care,” such as windshield washer fluid.
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.
Since 1990, nationwide air quality has improved significantly for the six common air pollutants: ground-level ozone; particle pollution; lead; nitrogen dioxide; carbon monoxide; and sulfur dioxide, according to the US Environmental Protection Agency (EPA) report “Our Nation’s Air - Status and Trends through 2008”. annual PM 2.5
Deterioration of the ozone layer [kg CFC-11-eq.]. The program guides the interested layperson through a selection of parameters: which type of engine should be used, gasoline-burning or diesel, for example, or one powered by natural gas, a fuel cell, or a battery. Depletion of fossil energy resources [kg oil-eq.].
Emissions from gasoline used in on-road vehicles are the main driver of that increase. Biofuels such as ethanol, biodiesel, and renewable diesel can displace fossil fuels and reduce the amount of fossil-based CO 2 emissions released into the atmosphere. MMTCO 2 e (6%) from 2013 to 2017.
These include carbon monoxide, ozone, particulate matter, and nitrogen oxides, which are regulated in the United States by the National Ambient Air Quality Standards (NAAQS).
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. These results show that meeting future air quality standards for ozone pollution will be more challenging than previously thought.
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. However, whether and how the mandate for cellulosic biofuels will be met is uncertain.
Advanced ignition technologies, such as those offered by TPS, have been widely recognized as enablers to achieving higher combustion efficiency and lower emissions for gasoline-powered engines. hp diesel engine. Results obtained from work performed under a recent DOE grant showed nearly 80% reduction in particulates from a 1.8
The majority of California residents live in areas that do not meet permissible air quality levels for regulated air pollutants—mostly due to exceedances in atmospheric concentrations of ozone and particulate matter. Vehicles that are engine certified include incomplete gasoline vehicles and those powered with diesel engines.
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
The program funds projects to encourage the development and use of new technologies and alternative and renewable fuels, including electricity, natural gas, biomethane, hydrogen, and gasoline and diesel substitutes, such as cellulosic ethanol (derived from woody materials, including agricultural waste), and biodiesel from waste grease.
A notable exception is for the small diesel car; with two passengers ( i.e., 50% occupancy), the specific climate impact is lower than for an average train or bus trip. Similar effects apply for diesel buses, but because of their higher unit emissions of BC and NO x , the contribution of SLCFs is more pronounced. fuel consumption.
So far, ammonia has been considered as a fuel when blended with gasoline, diesel, hydrogen and methane fuels to reduce the proportion of carbon-based fuels and their emissions that contribute to climate change. Production plants already exist because ammonia is widely used in fertilizers.
Some diesel cars that meet the latest Euro 6 standards in reality release more NO x than a modern heavy duty truck. Zurich remote sensing data shows a wide disparity between petrol and diesel car NO x emissions, and substantial noncompliance by diesel cars. Earlier post.). Source: The ICCT. Click to enlarge. Earlier post.).
Using urban eddy covariance measurements, the researchers found that traffic-related NO x emissions in current operational air quality models can be significantly underestimated by up to a factor of 4 across countries with a sizeable fraction of diesel-powered cars in their fleet. The majority of the emissions is caused by diesel cars.
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. There is a limit, but we are not there yet. ”.
Here, RME show advantages for primary energy and GHG, but disadvantages in terms of acidification, eutrophication and ozone depletion. As currently practiced in a country such as Brazil, it can lead to emissions reductions of between 70% and well over 100% when substituted for gasoline. Source: “Assessing Biofuels”. Click to enlarge.
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.
Nevertheless, it is projected that even with the entire on-road fleet of heavy-duty vehicles compliant with the 2010 standards, upcoming National Ambient Air Quality Standards requirements for ozone attainment cannot be achieved in California’s worst air basins without further significant reductions in NO x emissions from heavy-duty fleets.
In order to achieve the 2008 Ozone National Ambient Air Quality Standards set by US EPA, CARB estimates that the South Coast Air Basin alone (including Los Angeles) will need an 80% reduction in NO x emissions by 2031. CARB said it looked forward to continued cooperation with the federal agencies on this long-term effort.
UCS advocates relentlessly for cleaner gasoline vehicles and dismisses plug-ins of all sorts, the Sierra Club strikes deals with Ford to promote a few thousand gasoline-dependent hybrids in exchange for advertising dollars, and the NRDC jumped on the biofuels bandwagon just as the cost of corn ethanol became impossible to ignore.
As the trend toward cleaner technologies with reduced exhaust emissions continues through the use of catalytic converters, diesel particulate filters (DPF), and improved fuels and engines, non-exhaust PM will soon surpass exhaust emissions and may well become dominant by 2020 both in terms of emissions and contributions to air quality.
Future gasoline fuel property standards. EPA is seeking comment on potential future gasoline fuel property standards aimed at further reducing PM emissions, for consideration in a possible subsequent rulemaking, which could provide an important complement to the vehicle standards being proposed.
In 2004, the Centralina region (the Greater Charlotte metro area, which straddles the North CarolinaSouth Carolina border) was designated as a non-attainment area for ozone under the Clean Air Act. What was the initial inspiration to have a train that runs on hydrogen instead of diesel? Thats the way diesel became widely available.
ARB staff reviewed four offset protocols and recommends that they be approved as part of this regulatory package: (1) the Urban Forest Projects Protocol; (2) the US Ozone Depleting Substances Projects Protocol; (3) the Livestock Manure (Digester) Projects Protocol; and (4) the US Forest Projects Protocol. Offset Protocols.
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.
Soot—black and brown particles that absorb solar radiation—comes from two types of sources: fossil fuels such as diesel, coal, gasoline, jet fuel; and solid biofuels such as wood, manure, dung, and other solid biomass used for home heating and cooking around the world. Particle traps filter out soot particles from exhaust fumes.
TSI (gasoline) and Golf Mk VII 1.6 TDI (diesel), both in the basic versions with standard equipment. ozone depletion potential (ODP). photochemical ozone creation potential. Comparative life cycle impacts of the Golf (gasoline and diesel) and the e-Golf, rounded values. acidification potential.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content