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Emissions Analytics finds pollution from tire wear can be 1,000x worse than exhaust emissions

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Pollution from tire wear can be 1,000 times worse than a car’s exhaust emissions, Emissions Analytics has found. Vehicle tire wear pollution is completely unregulated, unlike exhaust emissions which have been rapidly reduced by car makers due to the pressure placed on them by European emissions standards. Earlier post.).

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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 ). Cutting off at 23 nm avoids these ‘semi-volatiles’, whereas 6 nm is a much more comprehensive range. This shows that 13.4

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

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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. Selley et al. It is estimated that only 7% of PM 2.5

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ICL briefing paper estimates that 52% of all small particle pollution from road transport comes from tires and brakes

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A new briefing paper from Imperial College London estimates that in 2021, 52% of all small particle pollution from road transport came from tires and brakes. Tire wear particles pollute the environment, the air we breathe, the water run-off from roads and has compounding effects on waterways and agriculture.

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Ricardo, Arup AECOM consortium developing system to measure non-exhaust emissions of particles under real driving conditions

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Ricardo, in collaboration with the Arup AECOM consortium, is supporting the UK Department for Transport (DfT) in developing a system for measuring non-exhaust emissions (NEE) of particles, under real-world driving conditions. —“ Non-exhaust Particulate Emissions from Road Transport : An Ignored Environmental Policy Challenge ”.

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Study finds long-term exposure to black carbon from traffic exhaust at residential address increases the risk of stroke

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Long-term residential exposure to locally emitted black carbon (BC) from traffic exhaust increases the risk of stroke even in low-pollution environments, according to a study by researchers at Karolinska Institutet and other universities in Sweden. g/m 3 ) of black carbon from traffic exhaust, the risk of stroke increased by 4%.

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Study shows two-stroke scooters dominant source of air pollution in many cities; asymmetric polluters

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A study by European researchers has found that two-stroke (2S) scooters, although constituting a small fraction of the fleet, can dominate urban vehicular pollution through organic aerosol and aromatic emission factors up to thousands of times higher than from other vehicle classes. —Platt et al.

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