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UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

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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.

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Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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Solid bars represent low ambient temperature measurements whereas open, dashed bars represent standard temperature measurements. Nanoparticle emissions from gasoline spark ignition vehicles can be strongly dependent on vehicle speed and engine load. mg/mi at standard temperature to 4.3?4.5 mg/mi at standard temperature to 0.01?0.5

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EPA report shows progress in reducing urban air toxics across US; 50% reduction from mobile sources since 1990

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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).

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EPA Issues Advance Notice of Proposed Rulemaking on Lead Emissions from Leaded Aviation Gasoline, Seeks Public Comment

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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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New Toyota Highlander turbocharged engine offers more torque and fewer emissions

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Fuel efficiency is also improved for this higher-torque engine with an EPA-estimate of up to 25 MPG combined. The new engine, standard across all gasoline grades, is also more environmentally conscious, with more than a 50% reduction in NO x and NMOG compared to the outgoing V6 engine. Highlander Hybrid.

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Frost & Sullivan forecasts Gasoline Particulate Filters to climb from 50,335 units now to 4.2-4.6 million units by 2020

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Gasoline direct injection (GDI) is a strategy to improve fuel efficiency that is rapidly gaining market acceptance. Several OEMs are working on combustion optimization and injection technologies that reduce particulate emissions in engines rather than through exhaust after-treatment. and fuel properties. Earlier post.)

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Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

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As reported in a paper in ACS journal Environmental Science & Technology , the results showed that GDI technology has the potential to meet the upcoming California LEV III and US EPA Tier 3 PM mass standard of 3 mg/mi (phasing in over MY2017? Schematic diagram of test vehicle engine & exhaust system and PM sampling systems.

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