Emissions, Exhaust, Los Angeles and Study

Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

Green Car Congress

MARCH 1, 2019

A new study provides the most detailed picture available to date of the global, regional, and local health impacts attributable to emissions from four transportation subsectors: on-road diesel vehicles; other on-road vehicles; shipping; and non-road mobile engines such as agricultural and construction equipment. Source: The ICCT.

Ozone

Ozone 2015 2010 Exhaust

Study finds gasoline exhaust contributes more to formation of secondary organic aerosols than diesel

Green Car Congress

MARCH 3, 2012

Contrary to expectations, exhaust from gasoline vehicles contributes more to the production of secondary organic aerosols (SOA) than exhaust from diesel vehicles, according to a new study by scientists from the Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA’s Earth System Research Laboratory (ESRL) and other colleagues.

Exhaust

Exhaust Gasoline Diesel Los Angeles

Study explores long-term trends in motor vehicle emissions in US urban areas; targeting high-emitters

Green Car Congress

AUGUST 19, 2013

The study found that the highest-emitting 10% of gasoline vehicles are now responsible for the overwhelming majority of running CO, NMHC, and NO x. However, they also found that decreases in emissions of these pollutants appear to be slowing down and may have leveled off. unmeasured or not reported) from ambient air studies.

Emissions

Emissions Los Angeles Motor Motors

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

US study of miners links heavy exposure to diesel exhaust to increased risk of lung cancer death; researchers suggest implications for urban areas with high exhaust concentrations

Green Car Congress

MARCH 5, 2012

In a study of non-metal miners in the US, federal government scientists report that heavy exposure to diesel exhaust increased risk of death from lung cancer. documented the risk of dying from any cause, with an emphasis on lung cancer, using data from the full study population (the cohort study). µg/m 3 ).

Exhaust

Exhaust Diesel 2012 Los Angeles

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

Annual average concentrations of fine particulates from US sources of combustion emissions from (a) electric power generation; (b) industry; (c) commercial and residential sources; (d) road transportation; (e) marine transportation; (f) rail transportation; (g) sum of all combustion sources; (h) all sources. Source: MIT. Click to enlarge.

MIT

MIT Emissions Ozone Power

CMU study finds SOA levels in cities like LA will remain high despite cleaner cars; nonlinear relationship between SOA and NOx

Green Car Congress

JUNE 22, 2017

The findings of a study by researchers at Carnegie Mellon University, with colleagues at UC Berkeley, suggest that changing atmospheric NO x levels over the next two decades will likely significantly reduce the effectiveness of stricter new gasoline vehicle emissions standards in reducing concentrations of secondary organic aerosol (SOA).

Cleaner

Cleaner Los Angeles Exhaust Gasoline

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.

Emissions

Emissions Fleet Light Taxi

UC Irvine study finds organic constituents of UFP play important role in heart disease; suggestions for more effective emission control

Green Car Congress

OCTOBER 12, 2013

Results of a study funded and released by the California Air Resources Board (ARB) suggest that the organic constituents of ultrafine PM (UFP, particles ? The findings thus suggest a direction for mor effective emission control measures—i.e., Source: Kleinman presentation. Click to enlarge. Led by Dr. Michael T.

Emissions

Emissions Los Angeles Pollution California

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. diesels and one 3.0L diesel) over pre-defined test routes exhibiting diverse driving conditions.

Diesel

Diesel Emissions Light Los Angeles

California ARB Report Finds Fine Particle Air Pollution Responsible for 9,000 Premature Deaths in State Each Year; Based on US EPA Peer-Reviewed Study

Green Car Congress

SEPTEMBER 1, 2010

microns—less than a human hair which averages 70 microns in diameter—is the product of a variety of sources including particles in the exhaust of diesel engines. In 1998, ARB declared particles in diesel exhaust a Toxic Air Contaminant, a designation that required the Board to take measures to reduce the risk.

Pollution

Pollution EPA California Diesel

Researchers identify new nitrated PAH compounds from combustion that are hundreds of times more mutagenic than parent PAHs

Green Car Congress

JANUARY 6, 2014

The compounds were identified in laboratory experiments that mimic the type of conditions which might be found from the combustion and exhaust in cars and trucks, or the grilling of meat over a flame. This study found that the direct mutagenicity of the NPAHs with one nitrogen group can increase 6 to 432 times more than the parent compound.

Pollution

Pollution Oregon Los Angeles Universal

Study finds 2008 recession contributed to increase in age of US LDV fleet, slowing of emission reductions

Green Car Congress

DECEMBER 29, 2014

The global economic recession of 2008—which severely depressed light-duty vehicle sales—resulted in an increase in the age of the light-duty vehicle fleet in the US that likely slowed the rate of decrease of fleet average emissions, according to a study by Gary Bishop and Donald Stedman at the University of Denver.

2008

2008 Fleet Los Angeles Tulsa

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.

Diesel

Diesel Los Angeles Exhaust Gasoline

Road Test: 2024 Toyota Mirai Limited FCEV

Clean Fleet Report

MARCH 18, 2024

Innovative Technology for Emissions-free Driving Mirai translates as future in Japanese. The state has recognized hydrogen-powered cars as part of its drive to zero-out tailpipe emissions (and the resulting dangerous smog) for three decades and helped support the development of vehicles and infrastructure. kWh; Tesla: $0.50/kWh

Toyota

Toyota Hydrogen Lexus California

EV Driven

Study links ambient PM2.5 and ozone specifically caused by vehicle exhaust emissions to ~361,000 premature deaths worldwide in 2010 and ~385,000 in 2015

Study finds gasoline exhaust contributes more to formation of secondary organic aerosols than diesel

Study explores long-term trends in motor vehicle emissions in US urban areas; targeting high-emitters

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

US study of miners links heavy exposure to diesel exhaust to increased risk of lung cancer death; researchers suggest implications for urban areas with high exhaust concentrations

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

CMU study finds SOA levels in cities like LA will remain high despite cleaner cars; nonlinear relationship between SOA and NOx

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

UC Irvine study finds organic constituents of UFP play important role in heart disease; suggestions for more effective emission control

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

California ARB Report Finds Fine Particle Air Pollution Responsible for 9,000 Premature Deaths in State Each Year; Based on US EPA Peer-Reviewed Study

Researchers identify new nitrated PAH compounds from combustion that are hundreds of times more mutagenic than parent PAHs

Study finds 2008 recession contributed to increase in age of US LDV fleet, slowing of emission reductions

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

Road Test: 2024 Toyota Mirai Limited FCEV

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