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Modeling study suggests 1.8M excess deaths attributable to urban air pollution in 2019

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A new modeling study led by researchers from George Washington Universit (GWU) finds that 86% of people living in cities worldwide (~2.5 A second study, also led by the GWU researchers, finds that nearly 2 million cases of asthma in children are linked to traffic-related nitrogen dioxide air pollution, with two in three occurring in cities.

Pollution 468
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Study associates long-term exposure to air pollution with increasing emphysema

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Long-term exposure to ambient air pollutants, especially O 3 (ozone), is significantly associated with increasing emphysema, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. This work in the MESA Air study was led at the University of Washington.

Pollution 223
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10-year study shows how air pollution fosters heart disease; accelerated plaque build-up in arteries

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Long-term exposure to particulate air pollution has been linked to an increased risk of heart disease, but the biological process has not been understood. Participant-specific pollutant concentrations averaged over the years 2000–10 ranged from 9.2–22.6 The study is published in The Lancet. and NO x between 1999 and 2012.

Pollution 199
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Air pollution is the leading environmental cause of death worldwide according to the State of Global Air 2018 , the annual report and interactive website published by the Health Effects Institute (HEI). Millions of people around the world are also exposed to air pollution in their homes arising from the use of solid fuels (e.g.,

Pollution 218
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Six refineries in $425M settlement with EPA and DOJ over emissions violations

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and Par Hawaii Refining that resolves alleged Clean Air Act violations and protects public health by reducing air pollution at six refineries. Strict internal leak definitions: 500 ppm for valves and 2000 ppm for pumps. Tesoro will also pay a $10.45 million civil penalty. Of the $10.45-million

Emissions 150
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Study suggests high-mileage light-duty fleets contribute higher emissions and emissions share than expected

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used data collected at three US sampling sites: (1) in Washington State on the taxi and shuttle loop at the Seattle−Tacoma International Airport; (2) a long-term light-duty site in California located on I-10 between Santa Monica and downtown Los Angeles; and (3) a long-term light-duty site in Illinois located in the northwest suburbs of Chicago.

Emissions 150
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Black carbon is a much larger cause of climate change than previously assessed; about twice previous estimates, and 2/3 the effect of CO2

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Emission rates of BC in the year 2000 by region, indicating major source categories in each region. Total global emissions of black carbon using bottom-up inventory methods are 7500 Gg yr -1 in the year 2000 with an uncertainty range of 2000 to 29000. Source: Bond et al. Click to enlarge. W m -2 (+0.17 W m -2 range).