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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.

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Study Links Springtime Ozone Increases Above Western North America to Emissions in Asia

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Springtime ozone distributions for 1984, 1995–2008 in the mid-troposphere (3.0–8.0 Springtime ozone levels above western North America are rising primarily due to air flowing eastward from the Pacific Ocean, a trend that is largest when the air originates in Asia. km), and air mass source regions. Click to enlarge.

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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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EPA and Justice Department announce settlement to reduce hazardous air emissions at BP Products’ Whiting Refinery; $197M in injunctive relief, $40M penalty

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The US Environmental Protection Agency (EPA) and the Department of Justice announced a Clean Air Act Settlement with BP Products North America Inc., (BPP), BPP will also install 10 air pollutant monitoring stations to monitor air quality outside of the refinery fenceline.

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Researchers report on potential long-range atmospheric emissions impacts of increased ethanol fuel use in North America

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Seasonal ethanol emissions from North America. Numbers inset give the total North American ethanol source. Acetaldehyde is classified as a hazardous air pollutants (HAP) regulated under Title III of the Clean Air Act Amendments. This is accompanied by a modest regional decrease in surface ozone (of order 1%).

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Volvo Trucks awarded $21.7M from US EPA and South Coast AQMD to deploy 70 Class 8 VNR Electric trucks

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Volvo Trucks North America was awarded $21.7 The US Environmental Protection Agency’s (EPA) Targeted Air Shed Grant Program focuses on the regions that have the highest ozone and particulate matter (PM) pollution, including California’s South Coast Air Basin.

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

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Additionally, the study found that the population-weighted mean concentrations of ozone increased globally by 8.9% from 1990–2013 with increases in most countries—except for modest decreases in North America, parts of Europe, and several countries in Southeast Asia. and ozone (O 3 ). and ozone (O 3 ).

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