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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.

Ozone 255
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Study first to quantify amount of US pollution resulting from Chinese manufacturing for exports

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Average annual percentage of black carbon pollution related to Chinese exports. China is responsible for only a small percentage of the annual pollution in the US, but powerful global winds known as “westerlies” can push airborne chemicals across the ocean in days, particularly during the spring, causing dangerous spikes in contaminants.

Pollution 318
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EPA researchers find deaths from air pollution falling over time, but many sectors continue to pose a risk

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In a new study apportioning air pollution health burdens across US sectors, researchers at the Office of Air Quality Planning and Standards, US Environmental Protection Agency (EPA) determined that mortality from air pollution has fallen over time but that many sectors continue to pose a substantial risk to human health.

Pollution 218
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UK researchers report that alcohols in windshield washer fluid are major unreported source of VOCs emissions from cars, including EVs

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The levels of these non-fuel-derived gases will likely remain unchanged, even as more drivers transition from gas-powered to electric vehicles. Another important component of emissions is volatile organic compounds (VOCs), a broad classification of carbon-based molecules that are easily vaporized and that can contribute to ozone formation.

Emissions 397
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Northwestern/Princeton study explores air quality impacts of aggressive conversion to EVs

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Researchers from Northwestern University and Princeton University have explored the impact on US air quality from an aggressive conversion of internal combustion vehicles to battery-powered electric vehicles (EVs). coal, oil, natural gas, and biomass). —Schnell et al. Seasons and times of day. Winter while PM 2.5

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EPA releases national assessment of strategies to reduce air pollution at ports

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A new report from the US Environmental Protection Agency (EPA) finds that air pollution at US ports can be reduced significantly at all port types and sizes through a variety of strategies and cleaner technologies. national ambient air quality standards (NAAQS). national ambient air quality standards (NAAQS). Click to enlarge.

Pollution 150
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UNEP study: small number of measures targeting black carbon and tropospheric ozone could yield immediate climate benefits

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Black carbon and tropospheric ozone are harmful air pollutants that also contribute to climate change. Reducing black carbon and tropospheric ozone now will slow the rate of climate change within the first half of this century, the study said.

Ozone 218