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Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone. —Jin et al.

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

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increased by 20.4%, driven by trends in South Asia, Southeast Asia, and China, according to the team’s findings. Additionally, the study found that the population-weighted mean concentrations of ozone increased globally by 8.9% An additional 217,000 deaths were attributable to long-term ozone exposure. and ozone (O 3 ).

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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.

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Air pollution could claim 6.6 million lives per year by 2050, double current rate; small domestic fires and ag the worst offenders

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Exposure to air pollution is particularly acute in Asia, especially in China and India, where three-quarters of the world’s pollution-related deaths occur. In the EU exposure to fine particles and ozone claims 180,000 lives a year, including 35,000 in Germany. Results of the study are published in the journal Nature. Click to enlarge.

Pollution 150
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Study estimates ~4M children worldwide develop asthma each year because of NO2 air pollution

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The study, based on data from 2010 to 2015, estimates that 64% of these new cases of asthma occur in urban areas. NO 2 is just one component of air pollution, which is made up of many pollutants (including particulate matter, ozone, carbon monoxide), which are known to have numerous adverse effects on health.

Pollution 360
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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. Worldwide exposure to PM 2.5 contributed to 4.1 State of Global Air 2018. In 2016 a total of 2.5

Pollution 218
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HEI ACES study of lifetime animal exposure to New Technology Diesel Engine exhaust finds no lung cancer

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These results are impressive for what they can mean for reducing exposure in the US and Europe, but also for the promise they hold in the developing countries of Asia and elsewhere in the world. —Bob O’Keefe, Vice President of HEI and Chair of Clean Air Asia. Advanced Collaborative Emissions Study (ACES). Research Report 184.

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