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UB study finds link between ambient ozone exposure, artery wall thickness

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Long-term exposure to ambient ozone appears to accelerate arterial conditions that progress into cardiovascular disease and stroke, according to a new University at Buffalo study. Paul, Minnesota; Chicago; and Los Angeles. While the study finds an association between air pollution and atherosclerosis, researchers aren’t clear on why.

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Study estimates ~4M children worldwide develop asthma each year because of NO2 air pollution

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About 4 million children worldwide develop asthma each year because of inhaling nitrogen dioxide (NO 2 ) air pollution, according to an open-access study published in The Lancet Planetary Health by researchers at the George Washington University Milken Institute School of Public Health (Milken Institute SPH). —Susan Anenberg.

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Study finds São Paulo switch from ethanol to gasoline dropped local ozone levels by 20%, increased CO and nitric oxide concentrations

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A study by a pair of researchers at Northwestern University found that when fuel prices drove residents of São Paulo, Brazil, to switch from ethanol to gasoline in their flexible-fuel vehicles, local ozone levels dropped 20%. Ozone levels are relatively high in São Paulo, with hourly concentrations above 75 and 125 µg m ?3

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Study warns on possible air pollution link to neuroinflammatory, Alzheimer and Parkinson’s pathologies in megacity children

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Children living in polluted megacities are at increased risk for brain inflammation and neurodegenerative changes, including Alzheimer or Parkinson’s disease, according to a study led by University of Montana Professor Dr. Lilian Calderón-Garcidueñas and her colleagues. —Calderón-Garcidueñas et al.

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USDOT FTA announces $182M in Low-No grants for transit vehicles & facilities nationwide

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A few examples of 2021 Low-No grant projects include: The Chicago Transit Authority (CTA) will receive nearly $7 million to purchase battery electric buses and charging equipment, upgrade its Southside bus depot and provide workforce training. Chicago Transit Authority (CTA). Broome County (NY). City of Fayetteville (NC).

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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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1,000 to 21,000) deaths due to changes in ozone concentrations. 900 to 11,000) ozone-related early deaths per year. 300 to 4,000) ozone-related premature mortalities per year. 2000 (90% CI: 0–4,000) early deaths from ozone, according to the study. 53,000 (90% CI: 24,000–95,000) PM 2.5 related premature deaths and ?5,000

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California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

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Union Pacific operates in 23 states west of Chicago, while BNSF Railway is present in 28. NO x helps create ground-level ozone, or smog. Both pollutants are particularly harmful to children, the elderly and those who have preexisting health problems. Resources.

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