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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.

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Study: ozone levels higher across China than in other countries tracking the air pollutant

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In China, people breathe ozone-laden air two to six times more often than people in the United States, Europe, Japan, or South Korea, according to a new international study published in Environmental Science & Technology Letters. 2017 for one ozone metric. 2014) are included. 2017 are included.

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Study finds rising emissions of ozone-depleting CFC-11, banned by Montreal Protocol

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Emissions of one of the chemicals most responsible for the Antarctic ozone hole are on the rise, despite an international treaty that required an end to its production in 2010, a new study by researchers at NOAA and their colleagues shows. —NOAA scientist Stephen Montzka, lead author of the paper.

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Study finds damage due to premature mortality from PM2.5 decreased >20% from 2008 to 2014

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related damages, researchers from Carnegie Mellon University and Stanford have found that, US-economy-wide, gross external damage (GED) due to premature mortality has decreased by more than 20% from 2008 to 2014. GED was calculated for the 3 most recent NEI years: 2008, 2011, and 2014. In a new study of PM 2.5 Tschofen et al.

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EPA and DOT issue final Phase 2 GHG and fuel efficiency rulemaking for medium- and heavy-duty trucks

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For example, when the standards are fully phased in, tractors in a tractor-trailer will achieve up to 25% lower CO 2 emissions and fuel consumption than an equivalent tractor in 2018. Truck sales were up in model years 2014 and 2015, the years covered under the first round of truck standards.

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Calif. ARB releases GHG scoping plan update; more ZEVs, “LEV IV”, MD and HD regulations; ZEV for trucks; more LCFS

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Many of the strategies employed to reduce GHG emissions will also work to meet the national ambient air quality standard for ozone in 2032. However, to achieve the needed transportation GHG reductions and the corresponding 2032 ozone standards, the market uptake of advanced technologies will need to be accelerated.

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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

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Also, Senate Bill 605 (Lara, 2014) requires ARB to develop a plan to reduce emissions of SLCPs, while SB 1383 requires the Board to complete and approve the plan by 1 January 2018. Since then Governor Brown signed SB 32 (Pavley), codifying a reductions target for statewide GHG emissions of 40 percent below 1990 emission levels by 2030.

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