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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. Source: University of Leicester. Click to enlarge.

Ozone 255
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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.

Ozone 150
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U Vienna team finds stable metabolized TWP-derived compounds with unknown toxicities in lettuce

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Researchers at the University of Vienna (Austria) have demonstrated that tire wear particle (TWP)-derived compounds are readily taken up by lettuce with measured maximum leaf concentrations between ∼0.75 Not only the parent compounds but also their transformation products, many of which are still unknown, may exert harmful effects on biota.

Ozone 456
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Researchers identify four new man-made gases contributing to destruction of ozone layer

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A study by an international team led by scientists at the University of East Anglia have identified four new man-made gases in the atmosphere, all of which are contributing to the destruction of the ozone layer. CFCs are the main cause of the hole in the ozone layer over Antarctica. —Lead researcher Dr. Johannes Laube.

Ozone 246
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Airborne measurements show ozone-forming VOCs emissions from ethanol plant higher than government estimates

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VOCs and nitrogen oxides react with sunlight to form ground-level ozone, the main component of smog. and so the question is: what does that do to the environment. De Gouw said the VOC emissions are likely generated by the production process, not the coal-burning that powers it. —Joost de Gouw. de Gouw et al.

Ozone 150
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New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

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in collaboration with scientists at the University of York’s Stockholm Environment Institute (SEI); University of Colorado; and the International Institute for Applied Systems Analysis, assessed 30 studies of vehicle emissions under real-world driving conditions in 11 major vehicle markets representing 80% of new diesel vehicle sales in 2015.

Diesel 230
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HALO research aircraft measuring the emissions of megacities in EmeRGe project

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The University of Bremen is the scientific base of the international project known as EMeRGe (Effect of Megacities on the transport and transformation of pollutants on the Regional and Global scales). Burrows, the Principal Investigator of the mission and a professor at the Institute of Environmental Physics at the University of Bremen.

Emissions 268