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Study finds pollution emitted near equator has biggest impact on global ozone

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Since the 1980s, air pollution has increased worldwide, but it has increased at a much faster pace in regions close to the equator. They found that the increase in ozone burden due to the spatial distribution change slightly exceeds the combined influences of the increased emission magnitude and global methane.

Ozone 230
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Seven billion people, more than 95% of the world’s population, lived in areas exceeding the WHO Guideline for healthy air in 2016, according to a new global study. Comparison of 2016 annual average PM 2.5 Population-weighted seasonal average ozone concentrations in 2016. In 2016 a total of 2.5 contributed to 4.1

Pollution 218
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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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The update identifies eight key sectors for ongoing action: Energy; Transportation, fuels, land use and infrastructure; Agriculture; Water; Waste management; Natural lands; Short-Lived Climate Pollutants (such as methane and black carbon); and Green Buildings.

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The importance of considering non-exhaust traffic emissions; the role of EVs

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the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. The baseline was 2010 and the end of the assessment 2020. However, they found that the two interventions had marginal effects on air pollution, because already implemented traffic policies will reduce PM 2.5 in Belgium. Hooftman et al. Victor R.J.H.

Exhaust 150
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Study associates acute exposure to higher ozone levels to higher risk of cardiac arrest

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Exposure to higher ozone concentrations in the air is significantly associated with a higher risk of out-of-hospital cardiac arrest (OHCA), according to preliminary research to be presented at the American Heart Association’s Resuscitation Science Symposium 2020. Participants were age 63 years on average, 61% were men and 53% were non-white.

Ozone 186
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California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

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The top set of recommendations call for: Replacing existing switch and medium horsepower locomotives with cleaner locomotives (2010-2013); Retrofitting switch and medium horsepower locomotive with particulate matter and oxides of nitrogen (NO x ) after-treatment devices (2012-2016); and. NO x helps create ground-level ozone, or smog.

Diesel 170
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Study identifies Bakken Formation alone as responsible for ~2% of global ethane emissions

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Ethane reacts with sunlight and other molecules in the atmosphere to form ozone, which at the surface can cause respiratory problems, eye irritation and other ailments and damage crops. A snapshot from a simulation of how Bakken oil field hydrocarbon emissions including ethane affect North American ground-level ozone concentrations.

Global 150