Environment, Exhaust and Ozone

The importance of considering non-exhaust traffic emissions; the role of EVs

Green Car Congress

MAY 2, 2016

the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al. Background.

Exhaust

Exhaust Emissions Belgium Gasoline-Electric

HEI launches two new non-tailpipe particulate emission studies

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.

Emissions

Emissions Pollution Exhaust London

Study: curbing diesel emissions could reduce mortality rates in big cities

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

Emissions Diesel Ozone United States

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. The paper’s co-authors are Prakash Prashanth, Raymond Speth, Sebastian Eastham, and Jayant Sabnins, all members of MIT’s Laboratory for Aviation and the Environment. Eastham, Jayant S.

MIT

MIT Emissions Hybrid Gas-Electric

Transient Plasma Systems says advances are bringing plasma ignition technology closer to commercialization

Green Car Congress

DECEMBER 20, 2021

In particular, TPS technology offers a groundbreaking approach to reducing emissions from combustion engines and improving the environment. TPS has also successfully demonstrated its kitchen exhaust solution by a 90% reduction in particulates and odor, in a test with a leading commercial kitchen equipment OEM. hp diesel engine.

Commercial

Commercial Los Angeles Exhaust Ozone

MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

Green Car Congress

AUGUST 29, 2013

Researchers from MIT’s Laboratory for Aviation and the Environment have concluded that ground-level PM 2.5 Researchers from MIT’s Laboratory for Aviation and the Environment have concluded that ground-level PM 2.5 1,000 to 21,000) deaths due to changes in ozone concentrations. 900 to 11,000) ozone-related early deaths per year.

MIT

MIT Emissions Ozone Power

CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

Green Car Congress

JUNE 12, 2023

The open-access paper is published in Nature Communications Earth & Environment. Unlike exhaust from burning coal and gas that contains CO 2 , burning hydrogen emits only water vapor and oxygen. We used five different atmospheric chemistry models and investigated changes in atmospheric methane, ozone and stratospheric water vapor.

Hydrogen

Hydrogen Global Ozone CO2

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

Particle traps filter out soot particles from exhaust fumes. 1990; Anisimov, 2007] and chemical production of ozone in already-polluted locations [Jacobson, 2008b]. These three gases are all greenhouse gases, and ozone is a surface air pollutant. Jacobson is a senior fellow at the Woods Institute for the Environment.

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 which are regulated under the National Ambient Air Quality Standards (NAAQS) because of their adverse effects on human health and the environment.

Emissions

Emissions Diesel Engine 2010

Harvard team finds that the phase of atmospheric secondary organic material affects chemical aging; may require revision of regional and global climate models

Green Car Congress

OCTOBER 17, 2012

In a liquid phase, the organic materials would absorb other compounds such as ammonia or ozone very easily and then progress through a series of chemical changes (known as chemical aging) to form particles that reflect or absorb sunlight, or form clouds. For the environment, ammonia is a very tricky compound.

Climate

Climate Global Ozone Water

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° C above pre-industrial levels. Yet if countries continue on their present course, the world will likely have warmed by 2.7°

Climate

Climate Climate Change Mariner Pollution

Study links air pollution to increased emergency department visits for heart and lung disease

Green Car Congress

NOVEMBER 11, 2018

They found that exposure to pollutants such as ground-level ozone and nitrogen oxides, which are created from burning fossil fuels, led to increased ED visits. The study is published in the journal Environment International. We estimated associations between twelve ambient air pollutants of both primary (e.g. —Krall et al.

Pollution

Pollution St. Louis Dallas Atlanta

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

EV Driven

The importance of considering non-exhaust traffic emissions; the role of EVs

HEI launches two new non-tailpipe particulate emission studies

Study: curbing diesel emissions could reduce mortality rates in big cities

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

Transient Plasma Systems says advances are bringing plasma ignition technology closer to commercialization

MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

CICERO-led study finds global warming effect of leaked hydrogen almost 12x stronger than CO2

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

Harvard team finds that the phase of atmospheric secondary organic material affects chemical aging; may require revision of regional and global climate models

Climate Expert: Don't Call It Geoengineering

Study links air pollution to increased emergency department visits for heart and lung disease

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

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