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

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

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).

Pollution

Pollution United Arab Emirates South Korea Las Vegas

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 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. Their study is published in the ACS journal Environmental Science & Technology. The main goal of this study is to evaluate long-term trends (1990?2010) Credit: ACS, McDonald et al.

Emissions

Emissions Los Angeles Motor Motors

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

2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. The researchers collected data from the year 2005, the most recent data available at the time of the study. While the study is based on data from 2005, Barrett says the results are likely representative of today’s pollution-related health risks.

MIT

MIT Emissions Ozone Power

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 ? Numerous studies have found that exposure to PM air pollution may contribute to both disease and death. Source: Kleinman presentation. Click to enlarge. Led by Dr. Michael T.

Emissions

Emissions Los Angeles Pollution California

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. In their study, Bishop et al. —Bishop et al.

Emissions

Emissions Fleet Light Taxi

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

The test plan covered a wide variety of topological, road and ambient conditions as well as traffic densities over three major urban areas along the West coast—San Diego, Los Angeles, and San Francisco.

Diesel

Diesel Light Emissions 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

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

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

USGS study concludes plausible California megastorm could result in 3x more damage than severe SoCal earthquake

Green Car Congress

JANUARY 18, 2011

As examples, the authors noted, the storm largely cuts off traffic from Los Angeles to the north and east for 1-2 weeks, with gradual recovery. These impacts, the authors noted, are not exhaustive. Congress deemed the cost of the study to be too high at the time. An ARkStorm would be a statewide disaster.

California

California Los Angeles San Francisco Congress

Road Test: 2024 Toyota Mirai Limited FCEV

Clean Fleet Report

MARCH 18, 2024

The fueling process is fast and easy and a FCEV operates exactly like a gasoline-powered car, but with no noise, exhaust fumes or emissions. When we took delivery of the Mirai, the dash gauge read 345 miles of estimated range, which means we could have driven from Los Angeles to the Silicon Valley and had a few miles to spare.

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

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

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

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

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

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

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

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

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

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

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

USGS study concludes plausible California megastorm could result in 3x more damage than severe SoCal earthquake

Road Test: 2024 Toyota Mirai Limited FCEV

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