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.

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Ozone 2015 2010 Exhaust 230

Green Car Congress

NOVEMBER 14, 2018

The US Environmental Protection Agency (EPA) has launched the Cleaner Trucks Initiative (CTI) to further decrease NO x emissions from on-highway heavy-duty trucks and engines. The US has made major reductions in NO x emissions, but it’s been nearly 20 years since EPA updated these standards.

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EPA Cleaner Standards 2001 249

Green Car Congress

JANUARY 7, 2020

The eventual CTI rulemaking will establish new, more stringent emission standards for NO x and other pollutants for highway heavy-duty engines. This rulemaking will also offer opportunities to streamline and improve certification procedures to reduce costs for engine manufacturers.

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EPA Ozone Clean Cleaning 150

Green Car Congress

MAY 15, 2017

Real-world NO x emission factors by vehicle emissions standard in key regions. Daven Henze, an associate professor of mechanical engineering at CU Boulder, used computer modeling and NASA satellite data to simulate how particulate matter and ozone levels are, and will be, impacted by excess NOx levels in specific locations.

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Diesel International Emissions Ozone 230

Green Car Congress

APRIL 3, 2013

Higher octane fuels can lead to higher compression ratios which in turn can lead to more efficient gasoline engines and reduced fuel consumption. With turbocharged gasoline engines, there is a double benefit: higher compression ratios and increased boost. Earlier post.) such a fuel would result in equivalent emissions performance.

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EPA Fuel Parts Gasoline 255

Green Car Congress

MARCH 29, 2017

Results from CHIE studies are used to inform the periodic review of National Ambient Air Quality Standards (NAAQS) for common pollutants, such as ozone and particulate matter (PM), and advise other policy decisions. National Academies of Sciences, Engineering, and Medicine. Controlled Human Inhalation-Exposure Studies at EPA.

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Pollution Ozone EPA San Francisco 150

Green Car Congress

JUNE 1, 2017

The recent diesel scandal showed, for example, that measurements at engine test stands based on the New European Driving Cycle (NEDC) or similar emission testing procedures can be highly uncertain for predicting actual environmental impacts. —Karl et al. Resources. Striednig, C. Lamprecht, A. Hammerle, G. Wohlfahrt, A. Deventer, A.

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Europe Diesel Emissions Pollution 150