Emissions, EPA, Exhaust and Ozone

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

In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. —Cliff et al.

Emissions

Emissions Exhaust Cars Ozone

China study connects ozone pollution to cardiovascular health

Green Car Congress

JULY 17, 2017

Exposure to ozone, long associated with impaired lung function, is also connected to health changes that can cause cardiovascular disease such as heart attack, high blood pressure and stroke, according to a new study of Chinese adults. The findings associated ozone exposure with markers of platelet activation and increased blood pressure.

Ozone

Ozone Pollution Connect Connected

US EPA proposes San Joaquin Valley, South Coast, Southeast Desert as failing to meet one hour ozone air standard

Green Car Congress

SEPTEMBER 3, 2011

The US Environmental Protection Agency announced that it is proposing to find that the San Joaquin Valley, and California’s South Coast and the Southeast Desert have failed to meet the 1-hour ozone standard by their required deadlines. Children and the elderly are most impacted by ozone pollution. NO x and VOCs are ozone precursors.

Ozone

Ozone EPA Standards Pollution

EPA proposes approval of new ozone plans for the two of the worst Air Quality Zones in US: California’s San Joaquin Valley and South Coast

Green Car Congress

SEPTEMBER 9, 2011

US EPA Region 9 8-hour ozone trends, 1979-2000. Source: EPA. 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

Ozone

Ozone EPA Pollution 2002

EPA says methane emissions from natural gas production have dropped 36% from 2007-2011

Green Car Congress

APRIL 29, 2013

In its recently released Inventory of US Greenhouse Gas Emissions and Sinks: 1990 – 2011 ( earlier post ), the US Environmental Protection Agency (EPA) reported that methane (CH 4 ) emissions from the field production of natural gas have declined by 36% from 2007 to 2011 (from 83.1 CH 4 emissions represented 8.8%

2007

2007 2011 EPA Gas

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

Green Car Congress

FEBRUARY 5, 2020

Source of data: US EPA (2019). The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. NO x is a precursor for both ground level ozone and secondary PM 2.5 Chart: MECA.

Emissions

Emissions Diesel Engine 2010

EPA to begin work on proposed rulemaking for on-road heavy-duty ultra-low NOx standard for MY 2024

Green Car Congress

DECEMBER 23, 2016

Earlier this year, the US Environmental Protection Agency (EPA) received several petitions from state and local government agencies from across the country and other organizations to increase the stringency of the on-highway heavy-duty engine NO x emission standards from 0.2 —EPA memorandum in response to petitions.

EPA

EPA Standards Ozone 2000

CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

Green Car Congress

DECEMBER 4, 2013

2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. The study, the Phase 2 Report of the comprehensive Advanced Collaborative Emissions Study (ACES). These reductions came while emissions of fine particles were also 92% lower than the 2010 standard 99% lower than 2004 emissions.

Diesel

Diesel Emissions 2004 San Antonio

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Green Car Congress

JANUARY 27, 2015

The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., exhaust from heavy-duty diesel engines meeting EPA 2007 and later emissions requirements—has found no evidence of carcinogenic lung tumors. Earlier post.) Earlier post.)

Exhaust

Exhaust Diesel Engine 2007

Study Finds Ozone Concentrations at Current Clean Air Standards Levels Can Impair Even Healthy Lungs

Green Car Congress

JULY 25, 2009

Exposure to ozone at levels currently deemed safe by the NAAQS clean air standards can have a significant and negative effect on lung function, according to researchers at the University of California, Davis. The previous primary and secondary standards were identical 8-hour standards, set at 0.08 Earlier post.).

Ozone

Ozone Standards Clean Cleaning

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

Green Car Congress

SEPTEMBER 26, 2009

The California Air Resources Board directed its staff to take steps to provide further locomotive and rail yard emission reductions beyond those achieved by existing US Environmental Protection Agency and state regulations and agreements. While we are pleased to have already reduced diesel emissions at the rail yards, it’s not enough.

Diesel

Diesel California Emissions 2007

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. Electric school buses have no tailpipe emissions, so students are not directly exposed to harmful vehicle fumes when on or near the bus. What about electric buses? Ready to get started?

Fleet

Fleet Electrical Electric United States

CRC Releases Summary of Status of 8 Projects Investigating Effects of Mid-Level Ethanol Blends on Non-FFV Highway Vehicles

Green Car Congress

MAY 6, 2010

The testing program has eight projects underway or pending, exploring engine and vehicle compatibility and emissions issues resulting from the use of higher blends. Tailpipe emissions for SULEV vehicles and at cold ambient temperatures. Evaporative emissions durability. Emissions inventory and air quality modeling. (A-67

Vehicles

Vehicles Emissions 2010 Australia

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

Green Car Congress

JULY 24, 2020

The program will demonstrate that a suite of commercially available, EPA-rail-certified engines present a near-term, low-risk solution to create an affordable RNG hybrid line-haul locomotive with near zero emissions while simultaneously improving fuel cost by 50%. g/bhp-hr of NOx, a reduction of 400 times. g/bhp-hr of PM.

Grant

Grant Hybrid Ozone EPA

National Academies release third review of the 21st Century Truck Partnership

Green Car Congress

SEPTEMBER 14, 2015

The Partnership aims to “ accelerate the introduction of advanced truck and bus technologies that use less fuel, have greater fuel diversity, operate more safely, are more reliable, meet future emissions standards, and are cost effective.” The 21CTP was formed in 2001 to reduce fuel usage and emissions in trucks of Classes 3 through 8.

MPG

MPG Miles 2009 Fuel

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

Emission rates for the 1.7 A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 Biodiesel also reduces smoke opacity, PM, CO, and NMHC emissions, although NO x may increase, depending on operating conditions. L engines at idle.

Pollution

Pollution Diesel Emissions Engine

Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

AUGUST 30, 2009

80.27, “high ozone season” means the period from June 1 to September 15 of any calendar year and “regulatory control period” means the period from May 1 to September 15 of any calendar year. In February, 2009, the US EPA granted Renergie, Inc. The water contained in hydrous ethanol blends also reduces NO x emissions.

Transportation

Transportation Fuel Renewable Gasoline-Electric

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

Green Car Congress

MAY 12, 2017

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. —Saliba et al.

Fleet

Fleet Engine Global Fuel Economy

Clean Diesel Technologies awarded $1.3M for ferry emission reduction program

Green Car Congress

OCTOBER 25, 2010

million in funding by the New York State Energy and Research Development Authority (NYSERDA) to supply diesel emission control technology as part of a New York City ferry emission reduction program. Over the next several months, CDT will supply and manage the installation of the emission control technology. has been awarded $1.3

Diesel

Diesel Clean Cleaning Emissions

EV Driven

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

China study connects ozone pollution to cardiovascular health

US EPA proposes San Joaquin Valley, South Coast, Southeast Desert as failing to meet one hour ozone air standard

EPA proposes approval of new ozone plans for the two of the worst Air Quality Zones in US: California’s San Joaquin Valley and South Coast

EPA says methane emissions from natural gas production have dropped 36% from 2007-2011

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

EPA to begin work on proposed rulemaking for on-road heavy-duty ultra-low NOx standard for MY 2024

CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

Study Finds Ozone Concentrations at Current Clean Air Standards Levels Can Impair Even Healthy Lungs

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

Why Electric Buses Are the Healthy School Choice

CRC Releases Summary of Status of 8 Projects Investigating Effects of Mid-Level Ethanol Blends on Non-FFV Highway Vehicles

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

National Academies release third review of the 21st Century Truck Partnership

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

Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

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

Clean Diesel Technologies awarded $1.3M for ferry emission reduction program

Stay Connected