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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. It is estimated that only 7% of PM 2.5

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Researchers show mechanism by which diesel exhaust particles trigger respiratory “flare-ups”

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Researchers at Imperial College London, working with colleagues from King’s College London and University of British Columbia, have demonstrated a mechanism by which diesel exhaust particles directly affect the lungs to initiate symptoms such as a tightening of the airways and cough. Robinson, Mark A. Birrell, John J.

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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. and PM 10 , including of NTP and TP emissions, at key selected London trial sites.

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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. Six million tonnes of tire wear particles (TWP) are released globally each year, and in London alone, 2.6 They are small enough to reach into the deep lung.

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Two new studies of road air pollution in London find detrimental effects on over-60s and unborn babies

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Exposure to air pollution on city streets is enough to counter the beneficial health effects of exercise in adults over 60, according to new research led by Imperial College London and Duke University. That should allow everyone to be able to enjoy the health benefits of physical activity in any urban environment. The unborn.

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

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An open-access paper on their work is published in the journal Environment International While the World Health Organization has not yet set a guideline for safe levels of ultrafine particles, it recognizes that particulate pollution overall is associated with negative impacts on cardiovascular and respiratory health. 2023.107888

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Study estimates the composition of non-exhaust atmospheric particulate matter from traffic

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A study by a team of researchers in the UK has estimated the contributions of brake dust, tire dust, and resuspended dust to non-exhaust traffic particles as. 55.3 ± 7.0%, 10.7 ± 2.3%, and 38.1 ± 9.7%, respectively, at their sampling site at Marleybone Road, London. 90% by the end of this decade. —Harrison et al.

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