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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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Fast action on black carbon, ozone and methane could help limit global temperature rise to 2 degrees C

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Fast action on pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 2 °C (3.6 °F)—and sector in industrialized countries. for 2030 and beyond. Source: UNEP. Click to enlarge. °C (2.7 °F),

Ozone 218
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Study: 87% of world’s population in 2013 lived in areas exceeding WHO PM2.5 guidelines

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annual average), according to a major international study published in the ACS journal Environmental Science & Technology. increased by 20.4%, driven by trends in South Asia, Southeast Asia, and China, according to the team’s findings. An additional 217,000 deaths were attributable to long-term ozone exposure.

2013 150
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Ozone, another important component of outdoor air pollution, whose levels are on the rise around the world, contributed to 234,000 deaths from chronic lung disease. Population-weighted seasonal average ozone concentrations in 2016. was industrial coal; transportation followed as a close second. Worldwide exposure to PM 2.5

Pollution 218
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Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

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NO x emissions have not been decreasing as expected in recent years (2011–2015) when comparing top-down estimates from satellites and surface NO 2 measurements to the trends predicted from the US Environmental Protection Agency’s emission inventory data, according to a new study by an international team of researchers.

Emissions 150
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Study Finds Asian Monsoon Carries Pollution Into the Stratosphere

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The Asian monsoon circulation provides an effective pathway for pollution from Asia, India, and Indonesia to enter the global stratosphere, according to a new international study led by scientists at the National Center for Atmospheric Research (NCAR) in Boulder, Colo. Source: Randel et al., Click to enlarge.

Pollution 246
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Study finds household and outdoor air pollution contributes to more than 5.5 million premature deaths worldwide per year

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of all global deaths) caused by outdoor fine particulate air pollution and an additional 215,000 deaths from exposure to ozone. million deaths, 64% were in Asia, especially China and India. They found that in 2013 there were 2.9 million deaths (5.3% million deaths in 2013. Taken together, air pollution caused 5.5 Of these 2.9

Pollution 150