Green Car Congress
JULY 8, 2014
A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for developing an exhaust aftertreatment device that cuts CO, NO x and PM emissions from lawnmowers. Then, an ultra-fine spray of urea solution is dispersed into the exhaust stream for catalytic NO x reduction.
Green Car Congress
JUNE 8, 2023
There are widespread policy assumptions that the phase-out of gasoline and diesel internal combustion engines will over time lead to much reduced emissions of Volatile Organic Compounds (VOCs) from road transport and related fuels. While some VOCs are released in exhaust, others may arise from an unexpected source—e.g.,
Green Car Congress
JUNE 2, 2014
Although gasoline direct injection engines (GDI) are a favorable technology for reducing fuel consumption and greenhouse gas emissions, recent studies have shown that GDI vehicles could emit more PM than traditional PFI (gasoline port fuel injection) vehicles as well as heavy-duty diesel trucks equipped with diesel particulate filters.
Green Car Congress
AUGUST 22, 2014
The US Environmental Protection Agency (EPA) released the Second Integrated Urban Air Toxics Report to Congress—the final of two reports required under the Clean Air Act (CAA) to inform Congress of progress in reducing public health risks from urban air toxics (also referred to as hazardous air pollutants or HAPs).
Green Car Congress
NOVEMBER 26, 2013
Results of a study led by a team from the National Renewable Energy Laboratory on the impact of butanol-gasoline blends on light-duty vehicle emissions suggest that widespread deployment of n-butanol or i-butanol in the gasoline pool could result in changes to the estimated emissions of alcohols and carbonyls in the emissions inventory.
Green Car Congress
OCTOBER 23, 2014
MOVES2014 is the latest version of MOVES and includes the effects of the Tier 3 rule as well the impacts of other EPA rulemakings promulgated since the last MOVES release in 2010; new emissions data; and new features that users have requested. EPA has advised states to use MOVES2014 in SIP development as expeditiously as possible.
Green Car Congress
APRIL 22, 2010
Source: EPA. EPA has issued an Advance Notice of Proposed Rulemaking (ANPR) on lead emissions from piston-engine aircraft using leaded aviation gasoline (avgas). A fraction of lead is retained in the engine, engine oil and/or exhaust system, which EPA currently estimates at 5%. EPA estimates that approximately 14.6
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