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). California currently limits the ethanol content of gasoline to 10 percent.

Fuel Economy 186

Fuel Economy Economy Fuel Ozone 186

Green Car Congress

SEPTEMBER 9, 2011

US EPA Region 9 8-hour ozone trends, 1979-2000. These State Implementation Plans (SIPs) are the roadmaps to meeting the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) of 0.08 In 1997, EPA first established the 8-hour ozone standard, which replaced the older 1-hour ozone standard (0.12 Source: EPA.

Ozone 236

Ozone EPA Pollution 2002 236

Green Car Congress

MAY 8, 2015

The California Air Resources Board (ARB) has released , for public review, a concept paper to initiate discussion on the development of a Short-Lived Climate Pollutant Reduction Strategy. Short-lived climate pollutants (SLCPs) include methane, tropospheric ozone, black carbon, and fluorinated gases.

Pollution 150

Pollution Climate Concept California 150

Green Car Congress

AUGUST 5, 2019

NO x emissions remain a significant challenge to air quality in the US, and are a predominant non-attainment concern for many areas, especially in California. NO x was reduced by 96% and carbon dioxide by 13% with a propane bus. For the stop-and-go route, NO x emissions were 34 times higher for the diesel school bus.

West Virginia 312

West Virginia Diesel Emissions Virginia 312

Green Car Congress

AUGUST 29, 2013

1,000 to 21,000) deaths due to changes in ozone concentrations. 900 to 11,000) ozone-related early deaths per year. 300 to 4,000) ozone-related premature mortalities per year. 2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. 53,000 (90% CI: 24,000–95,000) PM 2.5 related premature deaths and ?5,000

MIT 378

MIT Emissions Ozone Power 378

Green Car Congress

JANUARY 15, 2014

The California Air Resources Board (ARB) has adopted new LEV III emissions regulations which go into effect in 2015, requiring automakers to further reduce evaporative emissions. Traditional solutions involve adding an activated carbon honeycomb or filter to the air intake box to adsorb the hydrocarbons.

Emissions 207

Emissions Fuel Economy Ozone Conversion 207

Green Car Congress

DECEMBER 4, 2013

Emissions of carbon monoxide and hydrocarbons were also significantly below required 2010 levels: 97% and more than 99.9%, respectively. The study, the Phase 2 Report of the comprehensive Advanced Collaborative Emissions Study (ACES). In 2010, EPA’s stringent NO x limit of 0.20 g/hp-hr in 2010.

Diesel 296

Diesel Emissions 2004 San Antonio 296