Exhaust, Gas, Ozone and Pollution

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Green Car Congress

JUNE 8, 2023

The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. Cars’ average carbon dioxide emissions have dropped by 25% since the early 2000s, according to the US Environmental Protection Agency (EPA), but this gas only accounts for part of the total.

Emissions

Emissions Exhaust Cars Ozone

Study estimates ~4M children worldwide develop asthma each year because of NO2 air pollution

Green Car Congress

APRIL 11, 2019

About 4 million children worldwide develop asthma each year because of inhaling nitrogen dioxide (NO 2 ) air pollution, according to an open-access study published in The Lancet Planetary Health by researchers at the George Washington University Milken Institute School of Public Health (Milken Institute SPH). —Susan Anenberg.

Pollution

Pollution United Arab Emirates South Korea Las Vegas

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

Green Car Congress

JULY 13, 2011

(Japan) report in the journal Angewandte Chemie the development of a mesoporous two-line ferrihydrite (2LFh)—ferrihydrite is a widespread mineral composed of iron, oxygen, and water—that could lead to a new generation of ozone filters in electrostatic devices and aircraft applications. removal; it showed about 95 % O 3.

Ozone

Ozone Toyota Suzuki Pollution

MIT team proposes SCR emission control for hybrid aviation turbines; reducing NOx by 95%

Green Car Congress

JANUARY 15, 2021

At cruising altitude, airplanes emit a steady stream of NO x into the atmosphere, where the chemicals can linger to produce ozone and fine particulates. We quantify the effects of these trade-offs in terms of emissions reduction and fuel burn increase using representative engine cycle models provided by a major aero-gas turbine manufacturer.

MIT

MIT Emissions Hybrid Gas-Electric

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

Five technology paths for very-low-NO x and GHG emissions from heavy-duty natural gas engines. The “Pathways to Near-Zero-Emission Natural Gas Heavy Duty Vehicles” report, authored by GNA on behalf of Southern California Gas Co. Click to enlarge. Click to enlarge. Background. Click to enlarge.

Climate

Climate Gas Emissions California

ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

Green Car Congress

FEBRUARY 5, 2015

That study provided estimates of vessel traffic (numbers of vessels and transits) based on modeling of current vessel activity patterns, growth potential, and vessel projection scenarios, including diversion from other routes, and oil and gas development. Click to enlarge. ships diverting from prior routes to Arctic routes. Earlier post.).

Pollution

Pollution Emissions Mariner Fuel

Chevron fined $422,500 for 3 instances of non-compliant fuels in California; ethanol, olefin and cetane issues

Green Car Congress

JULY 19, 2013

Higher levels of olefin mean more smog will be formed from tailpipe emissions since hydrocarbons, including olefin, react with sunlight and other pollutants to form smog. In California, motor vehicles are the main source of smog-forming pollution and diesel exhaust accounts for 70% of Californians’ daily exposure to air toxics.

Chevron

Chevron California San Jose Fuel

Why Electric Buses Are the Healthy School Choice

Blink Charging

NOVEMBER 28, 2023

Many school districts use diesel buses for fuel efficiency, but even diesel exhaust was classified as a known carcinogen to humans in 2012. NIEHS goes on to say that air pollution is also linked to cancers, cardiovascular disease, respiratory disease, and other disorders. Ready to get started?

Fleet

Fleet Electric Electrical United States

Climate Expert: Don't Call It Geoengineering

Cars That Think

NOVEMBER 16, 2021

Everyone solemnly agreed, again, to follow the science, which has shown in exhaustive detail that humanity will suffer from heat, fire, floods, and droughts if the world warms beyond 1.5° The first is the moral hazard argument: If we embark on this research, it will undermine attempts to reduce greenhouse gas emissions.

Climate

Climate Climate Change Mariner Pollution

Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

Green Car Congress

JULY 29, 2010

Jacobson used a computer model of global climate, air pollution and weather that he developed over the last 20 years and updated to include additional atmospheric processes to analyze how soot can heat clouds, snow and ice. That ranks the effects of soot ahead of methane, an important greenhouse gas. Mark Jacobson. Dessler et al.,

Global

Global Ozone CO2 Pollution

MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

Green Car Congress

FEBRUARY 5, 2020

NO x is a precursor for both ground level ozone and secondary PM 2.5 It is important to state that there are several technology paths to achieve these levels of emissions, and some of them can simultaneously lower greenhouse gas emissions, such that the NO x reductions do not compete with the CO 2 reductions.

Emissions

Emissions Diesel Engine 2010

PNNL team finds correlation between reaction mechanism for zeolite SCR catalyst for NOx aftertreatment and bacterial enzyme catalysis

Green Car Congress

SEPTEMBER 11, 2013

In some catalytic zeolites, the metal ions can break down the pollutant nitric oxide in vehicle emissions. In addition, they produce as a byproduct the greenhouse gas nitrous oxide (known to dental patients everywhere as laughing gas). However, the zeolites crumble and clog easily, leading to early failure. 2013.03.078.

Li-ion

Li-ion Diesel 2013 Water

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

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. Unregulated pollutants also include ozone precursors and bioaccumulative and toxic compounds. L) and medium-duty (6.4 —Chin et al.

Pollution

Pollution Diesel Emissions Engine

OptiFuel finalizing $2.6M DOE grant to demonstrate RNG hybrid line-haul locomotive

Green Car Congress

JULY 24, 2020

million US Department of Energy (DOE) grant to demonstrate a pre-production Renewable Natural Gas (RNG) hybrid 4,300 hp line-haul locomotive. In several weeks, OptiFuel will start taking orders, in 49 of the US states, for a new line of affordable 800 hp to 3,200 hp, 100% natural gas freight and transit locomotives.

Grant

Grant Hybrid Ozone EPA

California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

Green Car Congress

SEPTEMBER 26, 2009

BNSF has been operating four liquefied natural gas yard locomotives in downtown Los Angeles since the mid-1990s. BNSF has been operating four liquefied natural gas yard locomotives in downtown Los Angeles since the mid-1990s. Diesel exhaust contains a variety of harmful gases and more than 40 other known cancer-causing substances.

Diesel

Diesel California Emissions 2007

Berkeley study identifies diesel as main source of vehicular secondary organic aerosols

Green Car Congress

OCTOBER 23, 2012

Contribution of gasoline and diesel exhaust to SOA over 0% to 50% diesel fuel use. The study determined that, depending on a region’s fuel use, diesel exhaust is responsible for 65% to 90% of vehicular-derived SOA, with substantial contributions from aromatic and aliphatic hydrocarbons. Gentner et al. Click to enlarge. Earlier post.).

Diesel

Diesel Los Angeles Exhaust Gasoline

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. Measurements include gas- and particle-phase emissions, particle number, particle size distributions, and speciated NMOG emissions.

Fleet

Fleet Engine Global Fuel Economy

EV Driven

UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

Study estimates ~4M children worldwide develop asthma each year because of NO2 air pollution

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

MIT team proposes SCR emission control for hybrid aviation turbines; reducing NOx by 95%

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

ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

Chevron fined $422,500 for 3 instances of non-compliant fuels in California; ethanol, olefin and cetane issues

Why Electric Buses Are the Healthy School Choice

Climate Expert: Don't Call It Geoengineering

Study Finds Controlling Soot May Be Fastest Method to Reduce Arctic Ice Loss and Global Warming; Second-Leading Cause of Global Warming After CO2

MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

PNNL team finds correlation between reaction mechanism for zeolite SCR catalyst for NOx aftertreatment and bacterial enzyme catalysis

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

OptiFuel finalizing $2.6M DOE grant to demonstrate RNG hybrid line-haul locomotive

California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

Berkeley study identifies diesel as main source of vehicular secondary organic aerosols

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

Stay Connected