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

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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 397
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Chalmers study finds ship exhaust gas scrubbers responsible for up to 9% of certain hazardous emissions into Baltic Sea

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New research from Chalmers University of Technology, Sweden, finds that the discharge water from ships’ exhaust gas treatment systems—i.e., A scrubber is used on ships to clean exhaust gases, primarily to reduce emissions of sulfur oxides to the atmosphere.

Exhaust 170
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Auburn University leads $2M DOE Co-Optima project to evaluate renewable butyl acetate as diesel fuel additive

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Auburn University researchers are leading a $2-million US Department of Energy Co-Optima project ( earlier post ) that will evaluate renewable butyl acetate (BA) as a bio-based fuel additive that can be blended with diesel fuel to reduce soot and greenhouse gas emissions and yield cleaner engine operation in cold-weather conditions.

Universal 247
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Researchers developing free-piston linear generator for exhaust waste heat recovery

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Researchers in China have developed a novel free-piston linear generator (FPLG) to recover exhaust waste heat efficiently from a vehicle engine. The FPLG can be used in a small-scale organic Rankine cycle (ORC) system and can directly convert the thermodynamic energy of working fluid into electricity. —Tian et al. Prototype FPLG.

Exhaust 186
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CMU study finds secondary organic aerosol production from PFI and GDI vehicles has been “substantially” reduced by tightening NMOG standards

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Secondary organic aerosol (SOA) is a major component of fine particulate matter—which causes adverse health effects—even in urban environments; vehicles may be a dominant source of SOA in urban areas, although there is still an ongoing debate over SOA formation from on-road sources. —Zhao et al.

Standards 170
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HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

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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.) —ACES report. ACES background.

Exhaust 150
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Study identifies combustion-derived nanoparticles in diesel exhaust as the predominant mediator for adverse cardiovascular events

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A European study lead by scientists at the University of Edinburgh (UK) has found that the combustion-derived ultrafine particles from diesel fuel are the predominant mediators of the adverse effects—harming blood vessels and increasing the chances of blood clots forming in arteries, leading to a heart attack or stroke.

Exhaust 268