Exhaust, Light and Pollution

New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Green Car Congress

MAY 13, 2022

In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). As a result, distance-specific mass and number emissions can be derived, which can then be compared to equivalent tire metrics.

Exhaust

Exhaust Emissions Pollution Legal

Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

Green Car Congress

MAY 23, 2014

A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al.

Pollution

Pollution Exhaust Emissions Light

Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

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 They found that the level of emissions of regulated and unregulated pollutants in diesel exhaust depends on fuel, load, engine calibration, and exhaust aftertreatment technology.

Pollution

Pollution Diesel Emissions Engine

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Corning expands light-duty vehicle exhaust filter capacity in Germany

Green Car Congress

NOVEMBER 1, 2014

Corning Incorporated has boosted its light-duty vehicle filter capacity at its manufacturing facility in Kaiserslautern, Germany for both gasoline and diesel engined vehicles. These engines produce a high number of fine particulates that pollute the air.

Germany

Germany Exhaust Light Fuel Economy

Achates near-zero heavy-duty opposed-piston diesel enters fleet service; compliant with 2027 NOx levels

Green Car Congress

APRIL 7, 2022

The cleaner engine is able to deliver ultra-low NO x by managing exhaust gas temperatures to ensure rapid catalyst light-off and by maintaining aftertreatment temperatures at optimum operating conditions in all driving conditions.

Diesel

Diesel Fleet Peterbilt Eaton

Should we be encouraging EVs or discouraging old smoking cars that are the most polluting? | Opinion

EV Central

MAY 10, 2025

I recently read a brilliant book, Malcolm Gladwells, Revenge of the Tipping Point that alerted me to the fact that just five per cent of the passenger vehicles on the road produce more than half of all the pollution in the air. Pollution would drop by the same amount as the 10 per cent shift. Ford Falcon.

Pollution

Pollution Denver Cars Australia

Researchers find isolated Pd atoms efficient low-temperature catalysts to convert CO in automotive exhaust

Green Car Congress

OCTOBER 8, 2014

-alumina supports along with a small amount of lanthanum oxide can efficiently turn the carbon monoxide in automotive exhaust into carbon dioxide at temperatures as low as 40 ?Celsius, Most of the pollutants from a modern automobile are emitted during the first 30 seconds of starting a car, when the catalyst is still being warmed.

Exhaust

Exhaust Convert New Mexico F-150

Mass spectrometer enhances SwRI’s USGR automotive catalyst testing

Green Car Congress

JANUARY 6, 2021

Different chemical structures absorb light at specific wavelengths, producing unique spectral fingerprints. The combination of technologies provides simultaneous FTIR and mass spectrometry data, allowing accurate and rapid identification of exhaust stream components. Real-time information is important,” Seuser said.

Pollution

Pollution Exhaust Grant Hydrogen

New ORNL non-precious metal catalyst shows promise as low-cost component for low-temperature exhaust aftertreatment

Green Car Congress

SEPTEMBER 23, 2015

Researchers at Oak Ridge National Laboratory (ORNL) have developed a ternary mixed oxide catalyst composed of copper oxide, cobalt oxide, and ceria (dubbed “CCC”) that outperforms synthesized and commercial platinum group metal (PGM) catalysts for CO oxidation in simulated exhaust streams while showing no signs of inhibition—i.e.,

Exhaust

Exhaust Low Cost Pollution Emissions

Swiss team concludes that particulate filters should be mandatory for GDI engines

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. —Norbert Heeb.

Engine

Engine Exhaust Gasoline Diesel

Study finds use of high cetane fuel reduces all primary pollutants under advanced diesel combustion mode

Green Car Congress

APRIL 24, 2011

A high ignition quality (high cetane number) fuel is well suited for operation under an advanced diesel combustion mode (High Efficiency Clean Combustion, HECC) and leads to reductions in all primary pollutant emissions—i.e., In their study, Lilik and Boehman operated a light-duty 2.5L —Lilik and Boehman.

Diesel

Diesel Pollution Fuel Emissions

UC Berkeley study quantifies LD gasoline on-road emissions

Green Car Congress

NOVEMBER 27, 2013

Based on on-road measurements in their study, a team from the University of California Berkeley has estimated that, as of 2010, light-duty (LD) gasoline vehicles were responsible for 85% of CO; 18% of NO x ; 18% of organic aerosol (OA); and 6% of black carbon (BC) emissions from on-road motor vehicles in the United States.

Gasoline

Gasoline Emissions Diesel San Francisco

ICCT-sponsored study of in-use testing of 3 Tier2-Bin5, CA LEV-II light-duty diesels finds wide variation of emissions against the limits

Green Car Congress

JUNE 2, 2014

In-use testing of three light duty diesel vehicles—certified to US-EPA Tier2-Bin5 and California LEV-II ULEV emissions limits— found a wide variation in real world emissions performance relative to the regulatory limits. Kappanna (2014) “ In-use emissions testing of light-duty diesel vehicles in the US ”. diesels and one 3.0L

Diesel

Diesel Emissions Light Los Angeles

Study finds in-car rush-hour exposure to some particulate pollution twice as high as previously thought

Green Car Congress

JULY 23, 2017

A new study, part of the Atlanta Commuter Exposures (ACE) Study, has assessed on-roadway in-cabin particulate pollution (PM 2.5 ) collected from scripted rush hour commutes on highways and on non-highway side streets. Most traffic pollution sensors are placed on the ground alongside the road and take continuous samples for a 24-hour period.

Pollution

Pollution Atlanta Cars Exhaust

EEA report: EVs are better for climate and air quality

Green Car Congress

NOVEMBER 26, 2018

Battery electric cars emit less greenhouse gases and air pollutants over their entire life cycle than petrol and diesel cars, according to a European Environment Agency (EEA) report. For local air quality, electric vehicles also offer clear benefits, mainly due to zero exhaust emissions at street level.

Climate

Climate Pollution Gasoline-Electric 2017

Vitesco Technologies reduces emissions in high-voltage hybrid vehicles with electrical catalyst heating; new DC/DC converter

Green Car Congress

FEBRUARY 24, 2021

The e-catalyst enables lowest emissions in real operation—something that is becoming increasingly important in light of forthcoming regulations such as Euro 7. If it is required and restarted, the exhaust flow is also cold at first—possibly too cold to convert pollutant gases in the catalyst.

DC

DC Convert Emissions Hybrid

Researchers identify ignition behavior of catalysts in catalytic converters; more efficient catalysts for cold-start conditions

Green Car Congress

OCTOBER 8, 2012

Although modern catalytic converters significantly reduce pollution from automobile engines, a major amount of pollutants is still emitted just after “cold-start”, that is, until the catalytic converter warms up to its “ignition” temperature, at which the reaction rate rapidly switches from low to high conversion. Resources.

Convert

Convert Exhaust Austria Pollution

EPA Proposes to Streamline Approval Process for Fuel Conversion Systems

Green Car Congress

MAY 7, 2010

The proposed rule would cover conversions of light-duty vehicles and heavy-duty highway vehicles and engines, and would apply to all clean alternative fuels. While properly engineered conversion systems can reduce or at least not increase emissions, poorly designed systems can lead to much more pollution. current calendar year - 1.

Conversion

Conversion EPA Fuel Clean Alternative

A123 to Power Plug-in Hybrid Trouble Truck for Eaton Corporation

Green Car Congress

MAY 11, 2010

It is managed by the Electric Power Research Institute (EPRI) under the lead of the South Coast Air Quality Management District (SC-AQMD) and is aimed to develop a production-ready plug-in hybrid power train system suitable for widespread utility use in light/medium duty service vehicles.

Eaton

Eaton Corporation Plug-in Plug

California adds $72.5M for cleaner diesel trucks, deployment of advanced vehicle technologies

Green Car Congress

SEPTEMBER 27, 2013

million to help California consumers purchase plug-in hybrid and zero-emission cars and light trucks. The program has leveraged state funds to provide about $210 million in private financing since 2009 to help truck owners purchase cleaner trucks, exhaust retrofits and truck efficiency upgrades.

Cleaner

Cleaner California Diesel Tax Credit

Adamas: China rare earth consumption for catalytic converters down on weak passenger vehicle production

Green Car Congress

AUGUST 7, 2019

million liters of vehicle exhaust gas catalyst in the first half of 2019—a decrease of 13% year-over-year on weak passenger vehicle production. Adamas Intelligence reports that according to the Association of China Rare Earth Industry (ACREI), China’s domestic manufacturers produced approximately 7.6

Convert

Convert China Exhaust Production

NYSERDA awards $4.6M to 17 transportation projects; support for Syracuse U supercritical diesel injection project

Green Car Congress

FEBRUARY 9, 2011

Rochester), with Blue Lake Associates (Rochester) are working on a device that could reduce pollution from a diesel engine by generating an ionic field to oxidize particulate matter in the exhaust, breaking down complex pollutants and making engines more environmentally friendly. Environmental Energy Technologies Inc.

Diesel

Diesel Transportation New York Pollution

Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

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. —Bishop et al. Bishop, Donald H. Stedman, Daniel A. 6b00717.

Emissions

Emissions Fleet Light Taxi

EPA updates rules to ease commercialization of alternative fuel conversion systems

Green Car Congress

MARCH 30, 2011

The updated final rule covers alternative fuel conversion of light-duty vehicles and heavy-duty highway vehicles and engines. While properly engineered conversion systems can reduce or at least not increase emissions, poorly designed systems can lead to much more pollution. Exhaust, Evap, and OBD testing. Intermediate age.

Alternative Fuels

Alternative Fuels Conversion EPA Fuel

EPA Proposes New Emissions Standards For Light & Heavy Duty Vehicles

CleanTechnica EVs

APRIL 13, 2023

New exhaust emissions rules from the EPA seek to dramatically lower carbon, particulate, and nitrogen oxide emissions from vehicles.

EPA

EPA Emissions Light Standards

Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

MAY 12, 2017

Recent studies have compared emissions of PFI and GDI vehicles, including particle number and mass, gaseous pollutants, and nonmethane organic gas (NMOG) composition for a limited number of compounds. Therefore, the secondary organic aerosol and ozone formation potential of the exhaust does not depend on engine technology.

Fleet

Fleet Engine Fuel Economy Global

Toyota Central R&D Labs develops new ferrihydrite material that effectively removes ozone from air

Green Car Congress

JULY 13, 2011

Ozone (O 3 ) is a dangerous air pollutant that is highly reactive and causes both short- and long-term adverse health effect and also disrupts plant growth. Ozone is formed when nitrogen oxide from exhaust is irradiated with UV light and releases an oxygen atom, which reacts with an oxygen molecule (O 2 ) to form an ozone molecule (O 3 ).

Ozone

Ozone Toyota Pollution Suzuki

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

To meet federal deadlines for attainment of ozone and fine particulate matter (PM 2.5 ) standards, these regions must expeditiously phase in heavy-duty vehicles that emit at, or below, the equivalent of “zero-emission” battery-electric vehicles when accounting for pollution from base load electricity generation. Advanced After Treatment.

Gas

Gas Climate Emissions California

New Fuso Canter with EcoEfficiency; up to 9% more fuel efficient; new hybrid

Green Car Congress

FEBRUARY 25, 2014

Mitsubishi Fuso, 90% owned by Daimler AG, has improved the performance of its Fuso Canter light-duty truck. With 140,000 units produced worldwide, the Fuso Canter is an international hit in the light-duty-truck sector and easily the best-selling truck model at Daimler Trucks. Fuso Canter 7C15 Eco Hybrid, box body. Click to enlarge.

Hybrid

Hybrid Fuel Standards Exhaust

Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

Green Car Congress

FEBRUARY 22, 2018

The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology.

Gasoline

Gasoline Emissions Engine Fuel Economy

CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

Green Car Congress

JULY 18, 2022

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). The test fleet showed statistically significant effects for some pollutants, but not for others.

Fuel Economy

Fuel Economy Economy Fuel Ozone

Faurecia acquires Amminex to accelerate efficient NOx reduction for passenger and commercial vehicles

Green Car Congress

DECEMBER 14, 2016

Amminex has developed an Ammonia Storage and Delivery System (ASDS) which has demonstrated its efficiency to almost completely eliminate nitrogen oxide (NO x ) pollutants from diesel engines. Conventional dosing technology is based on spraying an aqueous urea solution (diesel exhaust fluid, DEF) into the exhaust stream.

Commercial

Commercial Exhaust Vehicles Diesel

Sandia team proposes models for partially premixed low-temperature direct-injection diesel combustion

Green Car Congress

AUGUST 14, 2013

A team at Sandia National Laboratories recently proposed conceptual models for a specific subset of low-temperature combustion regimes: low-load, single-injection, partially premixed compression ignition (PPCI LTC) conditions that are diluted by exhaust-gas recirculation (EGR) to oxygen concentrations in the range of 10–15%. Musculus et al.

Diesel

Diesel Fuel Pollution Emissions

Toyota Shows Surfrider Camry Hybrid CNG, Two Modified Prius Hybrids at SEMA

Green Car Congress

NOVEMBER 3, 2009

The exterior of the vehicle was given a sportier concept look with the installation of an aggressive body kit featuring a custom front grill and unique rear bumper that covers the tail pipe and exhaust system. of UV light and has a SPF rating equivalent to well over 1,000. The special window treatment blocks 99.9%

Camry Hybrid

Camry Hybrid Prius Hybrid Toyota

CMU team identifies IVOCs emissions from on-road gasoline vehicles and small off-road engines as important SOA precursors

Green Car Congress

APRIL 10, 2016

Emissions from on-road light-duty gasoline vehicles (LDGVs) are a major contributor to secondary organic aerosol (SOA) in urban environments. However, only a small fraction of SOA formed during photo-oxidation of dilute LDGV exhaust in a smog chamber is explained by single-ring aromatic compounds. —Zhao et al. —Zhao et al.

Gasoline

Gasoline Emissions Engine Exhaust

Advanced Turbocharged, Direct Injected Gasoline Engines Poised to Take on Diesels in US and in Europe for Reduced Fuel Consumption and Emissions

Green Car Congress

AUGUST 10, 2009

Additionally, suggested one of the speakers, advanced SIDI (spark-ignited, direct-injection) engines can take light-duty market share back from diesels in Europe based on the same trends. However, prior to the remarks on climate change and the regulatory response, he spent a few minutes discussing the efforts on urban pollution—e.g.,

Gasoline

Gasoline Diesel Engine Emissions

HORIBA MIRA opens $10M advanced emissions test center; WLTP and RDE

Green Car Congress

JULY 6, 2017

The AETC facilities will provide testing capabilities for global compliance, including Euro 6d Worldwide Harmonized Light Vehicles Test Procedure (WLTP), as well as incorporating Real World Driving Emissions (RDE) testing capabilities.

Emissions

Emissions Climate France Exhaust

California EV rebate demand exceeds CVRP funding; rebates have gone to nearly 65% of all California EV owners

Green Car Congress

APRIL 15, 2021

In response to strong demand for electric vehicles, the California Air Resources Board (CARB) expects rebate funds for the statewide Clean Vehicle Rebate Project (CVRP) to be exhausted within 30 days. Electric vehicles (EVs) account for nearly 8% of all light-duty vehicles sold in California.

California

California Clean Cleaning Exhaust

Researchers use LCLS to get real-time view of chemical reaction; important insight into how catalysts work

Green Car Congress

MARCH 15, 2013

Catalytic converters in cars, for example, reduce emissions by converting exhaust to less toxic compounds.

Insight

Insight Universal Denmark Convert

Recent on-road real-world emission testing in India highlights disparity between cycles, gasoline and diesel

Green Car Congress

AUGUST 14, 2017

For laboratory testing, they measured emissions under the Modified Indian drive cycle (MIDC) (similar to NEDC), and the World harmonized Light Duty test cycle (WLTC); cold and hot start tests were performed for each vehicle and drive cycle. gNO x /km for gasoline; and 0.25

Gasoline

Gasoline Diesel Emissions India

EPA and CARB charge Fiat-Chrysler with using undeclared emission control devices in 3.0L diesels

Green Car Congress

JANUARY 12, 2017

and FCA US LLC (collectively FCA) for alleged violations of the Clean Air Act for installing and failing to disclose at least eight auxiliary emissions control devices (AECDs) in light-duty model year 2014-2016 Jeep Grand Cherokees and Dodge Ram 1500 trucks with 3.0-liter EGR shut-off for exhaust valve cleaning.

EPA

EPA Chrysler Emissions Diesel

JRC provides initial results and qualitative trends of study of regulated gaseous emissions under NEDC and new WLTP; data from 21 vehicles

Green Car Congress

JULY 9, 2015

The result is a compendium of experimental data regarding the regulated gaseous pollutants and fuel consumption on 21 vehicles. This seems to suggest a general trend: for those pollutants whose emissions are mainly due to the cold start phase of the cycle (ex. —Marotta et al. 5b01364.

Emissions

Emissions Vehicles Diesel Pollution

Economists propose use of dynamic road fees for traffic control

Green Car Congress

AUGUST 3, 2018

Fees that respond to traffic volumes in real time and with site precision, taking into account factors such as vehicle type and exhaust emissions, can significantly improve traffic flow and contribute to reducing air pollution, they suggest. Pollution and stress would decrease. —Cramton et al. That’s unfair.

Pollution

Pollution Price Environment Universal

Achates: LD opposed-piston, 2-stroke diesel can meet 2025 final CAFE, Tier 3 standards for full-size pickup; 30% better FE than Cummins ATLAS

Green Car Congress

APRIL 15, 2014

the developer of a family of two-stroke compression-ignition opposed-piston engines ( earlier post ), has performed an in-depth study on the performance and emissions of light-duty version of its engine packaged for a full-size pickup truck. Achates Power, Inc., Background. Air system. Kalebjian, C., Kessler, J., Rakovec, N.

Diesel

Diesel Fuel Economy Standards Engine

New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

Webinars

Trending Sources

Comparative study finds that B20 increases emission rates of a number of pollutants in both light- and medium-duty diesel engines at idle

Webinars

Corning expands light-duty vehicle exhaust filter capacity in Germany

Achates near-zero heavy-duty opposed-piston diesel enters fleet service; compliant with 2027 NOx levels

Should we be encouraging EVs or discouraging old smoking cars that are the most polluting? | Opinion

Researchers find isolated Pd atoms efficient low-temperature catalysts to convert CO in automotive exhaust

Mass spectrometer enhances SwRI’s USGR automotive catalyst testing

New ORNL non-precious metal catalyst shows promise as low-cost component for low-temperature exhaust aftertreatment

Swiss team concludes that particulate filters should be mandatory for GDI engines

Study finds use of high cetane fuel reduces all primary pollutants under advanced diesel combustion mode

UC Berkeley study quantifies LD gasoline on-road emissions

ICCT-sponsored study of in-use testing of 3 Tier2-Bin5, CA LEV-II light-duty diesels finds wide variation of emissions against the limits

Study finds in-car rush-hour exposure to some particulate pollution twice as high as previously thought

EEA report: EVs are better for climate and air quality

Vitesco Technologies reduces emissions in high-voltage hybrid vehicles with electrical catalyst heating; new DC/DC converter

Researchers identify ignition behavior of catalysts in catalytic converters; more efficient catalysts for cold-start conditions

EPA Proposes to Streamline Approval Process for Fuel Conversion Systems

A123 to Power Plug-in Hybrid Trouble Truck for Eaton Corporation

California adds $72.5M for cleaner diesel trucks, deployment of advanced vehicle technologies

Adamas: China rare earth consumption for catalytic converters down on weak passenger vehicle production

NYSERDA awards $4.6M to 17 transportation projects; support for Syracuse U supercritical diesel injection project

Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

EPA updates rules to ease commercialization of alternative fuel conversion systems

EPA Proposes New Emissions Standards For Light & Heavy Duty Vehicles

Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Toyota Central R&D Labs develops new ferrihydrite material that effectively removes ozone from air

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

New Fuso Canter with EcoEfficiency; up to 9% more fuel efficient; new hybrid

Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

Faurecia acquires Amminex to accelerate efficient NOx reduction for passenger and commercial vehicles

Sandia team proposes models for partially premixed low-temperature direct-injection diesel combustion

Toyota Shows Surfrider Camry Hybrid CNG, Two Modified Prius Hybrids at SEMA

CMU team identifies IVOCs emissions from on-road gasoline vehicles and small off-road engines as important SOA precursors

Advanced Turbocharged, Direct Injected Gasoline Engines Poised to Take on Diesels in US and in Europe for Reduced Fuel Consumption and Emissions

HORIBA MIRA opens $10M advanced emissions test center; WLTP and RDE

California EV rebate demand exceeds CVRP funding; rebates have gone to nearly 65% of all California EV owners

Researchers use LCLS to get real-time view of chemical reaction; important insight into how catalysts work

Recent on-road real-world emission testing in India highlights disparity between cycles, gasoline and diesel

EPA and CARB charge Fiat-Chrysler with using undeclared emission control devices in 3.0L diesels

JRC provides initial results and qualitative trends of study of regulated gaseous emissions under NEDC and new WLTP; data from 21 vehicles

Economists propose use of dynamic road fees for traffic control

Achates: LD opposed-piston, 2-stroke diesel can meet 2025 final CAFE, Tier 3 standards for full-size pickup; 30% better FE than Cummins ATLAS

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