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A study by a pair of researchers at Northwestern University found that when fuel prices drove residents of São Paulo, Brazil, to switch from ethanol to gasoline in their flexible-fuel vehicles, local ozone levels dropped 20%. Ozone levels are relatively high in São Paulo, with hourly concentrations above 75 and 125 µg m ?3
A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours.
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. The ozone in the bubble attacks certain pollutants because it is a strong oxidant.
Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. million vehicles and would have increased by 3 tpd from power plants.
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. Gasoline Fluence 16V. Electric Fluence Z.E.
Responding to the directive of California Governor Jerry Brown on Sunday ( earlier post ), the California Air Resources Board (ARB) will administratively permit gasoline in the state to meet a single RVP (Reid Vapor Pressure) limit of 9.0 The RVP limit is raised in the wintertime when ozone formation is less of a problem.
The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. These emissions are independent of the vehicle energy/propulsion system and therefore applicable to all road vehicle types including those with battery-electric powertrains. Cliff et al.
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. in review).
Researchers from the University of Minnesota have produced a spatially and temporally explicit life cycle inventory (LCI) of air pollutants from gasoline, ethanol derived from corn grain, and ethanol from corn stover for the contiguous US (the lower 48 states). Credit: ACS, Tessum et al. Click to enlarge. the contiguous US).
Power management company Eaton has introduced a complete suite of solutions from its Vehicle Group to reduce vapor emissions produced during the refueling of gasoline-powered vehicles. This leakage occurs in all gasoline-powered vehicles, including passenger cars and an increasing number of small- and mid-sized commercial vehicles.
The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). California currently limits the ethanol content of gasoline to 10 percent. SULEV30, ULEV50, ULEV70, and ULEV125).
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.
Emissions from gasoline used in on-road vehicles are the main driver of that increase. In-State Hydro, Solar, and Wind Electricity Generation. Electricity generated by California’s in-state wind power projects, large commercial-scale solar power projects, rooftop solar panels, and hydropower generation stations.
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 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.
The RDE will only be fully in place by January 2021, and in its likely final version, real world NO x emissions are still expected to be more than twice the regulatory limit, and three times higher than for gasoline vehicles, the ICCT said. However, the ICCT notes, labeling by itself in insufficient to address the problem of diesel vehicles.
They accounted for both CO 2 emissions and emissions of ozone precursors (NO x , VOC, CO) and aerosols (BC or black carbon, OC, SO 2 ) as well as cloud effects (aviation-induced cirrus clouds and contrails)—i.e., In their study, Borken-Kleefeld et al. shorter-lived climate forcers (SLCFs). shorter-lived climate forcers (SLCFs).
Simply put, the study found what advocates of electric transportation have long held to be true: as regards greenhouse gases and pollution generally speaking, the worst electricity is still better than petroleum. The use of electricity is an important attribute of PHEVs. I truly hope we have turned a corner. billion metric tons.
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. Here are several reasons for school districts to switch to electric buses.
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. Mid roof tractor 68.2
While battery electric vehicles have the obvious advantage of zero tail-pipe emissions, they are not equally advantaged when it comes to non-exhaust emissions. The team found that both interventions were associated with a decreased exposure to noise, with the effects of 50% electric-powered car being slightly higher. earlier post ).
Isoprene, a five-carbon diene formed naturally in plants and animals and a precursor of ozone, contributes more than 40% of these emissions. There is much more isoprene emitted to the atmosphere than all of the gases (gasoline, industrial chemicals) emitted by human activities, with the important exceptions of methane and carbon dioxide.
Starting in 2012, the program will cover electricity generation, including imports, and large industrial sources and processes with annual GHG emissions at or above 25,000 MTCO 2 e. The program will cover the major sources of GHG emissions in the State, including refineries and power plants, industrial facilities, and transportation fuels.
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. Furthermore, he suggested, the trains could be powered electrically by hydrogen.
liter inline 4-cylinder gasoline, and the one Clean Fleet Report tested, a hybrid turbocharged 2.0-liter Each Nautilus comes with three changeable scent cartridgesMystic Forest, Ozonic Azure and Violet Cashmere. Squeezing Out That Extra Mile All-new for 2024, the Nautilus comes with two engine choicesa turbocharged 2.0-liter
In 1975, General Ernesto Geisel, then-president of Brazil, ordered the country’s gasoline supply mixed with 10% ethanol. The level was raised to 25% over the next five years, which was intended to maintain a constant Brazilian gasoline supply for an ever-increasing demand. These were arguably the first flex-fuel vehicles.
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.
In 2014, Volkswagen of America announced that starting with the launch of the zero-tailpipe emissions battery-electric 2015 e-Golf ( earlier post ), it would invest in projects to offset the carbon emissions created from the e-Golf on a full lifecycle basis: production, distribution and up to approximately 36,000 miles (57,936 km) of driving.
In a follow-up Hyundai Ioniq 6 test drive , Green Car Reports found that this electric sedan goes the distance for a competitive price—with more range in the real world, or by ratings, versus the Tesla Model 3. 2024 Hyundai Ioniq 6 Kia has confirmed that its compact EV3 electric SUV is production-bound and will arrive next year.
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