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New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

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In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). As testament to the filtration efficiency of the latest gasoline particulate filters (GPFs), tailpipe mass emissions are now as low as 0.02

Exhaust 539
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HEI launches two new non-tailpipe particulate emission studies

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Emissions from automobile exhaust systems have decreased in recent years due to the introduction of cleaner fuels and new control technologies on internal combustion engines, as well as increases in numbers of hybrid and electric vehicles. 10 ) of urban air, a fraction known to be enriched with non-tailpipe constituents.

Emissions 353
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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. A filter captures harmful pollutants.

Exhaust 261
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UC Riverside team examines influence of mid-and high-level ethanol blends on pollution from GDI flex fuel vehicle

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Data presented as mean ± standard deviation, N=3. Overall, this study provides valuable insights on the impacts of ethanol content and gasoline composition on the exhaust emissions from a current technology GDI FFV. Their paper is published in the ACS journal Energy & Fuels. —Yang et al. Durbin, Kent C. 8b02206.

Pollution 255
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IHS: continued legislative focus on pollutants to drive sensor market for internal combustion engines

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The global market for sensors used in internal combustion engines (ICE) is on the road of steady growth for the next few years, propelled by increasing utilization in engine management and exhaust aftertreatment, according to a new report from IHS Technology. IHS projects that sensor shipments for ICEs will top 1.34 billion in 2013.

Pollution 210
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UC Berkeley study quantifies LD gasoline on-road emissions

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Based on on-road measurements in their study, a team from the University of California Berkeley has estimated that, as of 2010, light-duty (LD) gasoline vehicles were responsible for 85% of CO; 18% of NO x ; 18% of organic aerosol (OA); and 6% of black carbon (BC) emissions from on-road motor vehicles in the United States.

Gasoline 239
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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

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The researchers assessed the gaseous, particulate, and genotoxic pollutants from two current technology gasoline direct injection vehicles when tested in their original configuration and with a catalyzed gasoline particulate filter (GPF). Their study is publishedin the ACS journal Environmental Science & Technology.

Gasoline 253