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U Birmingham study finds DPFs have limited impact on ultrafine particle emissions

Green Car Congress

A study by researchers at the University of Birmingham in the UK has found that while Diesel Oxidation Catalysts (DOCs) and Diesel Particle Filters (DPFs) has been very effective in controlling the tailpipe emissions of solid particles, there has been little change in the liquid mode ( 104 cm −3 /24-hour mean) defined by WHO.

Emissions 210
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HEI launches two new non-tailpipe particulate emission studies

Green Car Congress

The Health Effects Institute (HEI) has launched two new studies funded under RFA 21-1, Quantifying Real-World Impacts of Non-Tailpipe Particulate Matter Emissions. The new studies are: Improved Characterization of the Real-World Contributions and Impacts of Non-tailpipe Particulate Matter Emissions ,” led by Greg Evans, University of Toronto.

Emissions 353
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Study suggests particulates from brake dust may have same harmful effects on immune cells as diesel exhaust

Green Car Congress

Metal particles from the abrasion of brake pads (brake abrasion dust, BAD) may cause inflammation and reduce the ability of immune cells to kill bacteria, similarly to particles derived from diesel exhaust particles (DEP), according to a new study led by researchers at King’s College London. It is estimated that only 7% of PM 2.5

Exhaust 348
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New analysis suggests Uber adding significantly to pollution and traffic in European cities

Green Car Congress

Uber is adding more polluting car trips to already-clogged European cities such as London and Paris, new analysis by European NGOs suggests —contributing to air pollution and climate change and exploding the company’s sustainability claims. million users in London in 2019 and with 2.7 million users in France in 2017.

Pollution 493
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Study uncovers role of longer-chain unburned hydrocarbon emissions from diesels in London air pollution; calls for regulatory shift

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The study found that 60% of the winter primary hydrocarbon hydroxyl radical reactivity in London is from those diesel-related hydrocarbons; the authors predicted that the longer-chain HCs contribute up to 50 % of the ozone production potential in London. —Dunmore et al. Dunmore et al.

London 150
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UK accelerates end of sale of new gasoline and diesel cars to 2030, hybrids to 2035

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UK Prime Minister Boris Johnson confirmed that the government will accelerate the ban on the sale of new gasoline and diesel vehicles, bringing it forward by ten years to 2030, as part of a “Green Industrial Revolution.” Nature: Protecting and restoring the natural environment, planting 30,000 hectares of trees every year.

Gasoline 304
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T&E study: EVs can be cheaper for Uber drivers to run than latest diesels in many European capitals

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Electric cars are becoming an attractive business proposition for high-mileage vehicle operators such as ride-sharer Uber in key EU capitals such as Paris, Berlin, Madrid and Lisbon, a new study by research and campaign group Transport & Environment (T&E) has found. The savings can be higher (24%) in the case of Parisian drivers.

Diesel 243