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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. In some parts of Asia, Africa and South America, the researchers identified data gaps which prevented them from characterizing ozone pollution exposure patterns. Source: University of Leicester. Click to enlarge.

Ozone 255
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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. State of Global Air 2018. State of Global Air 2018. All told, long-term exposure to outdoor and indoor air pollution contributed to 6.1 contributed to 4.1

Pollution 218
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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). Preliminary global mean CO 2 concentrations in February 2014 were 398.06 Ozone pollution also damages crops and other plants.

Ozone 199
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GISS study finds applying stricter non-CO2 vehicle emission standards worldwide would yield climate benefits in addition to major health and agricultural benefits

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Global and regional zonal mean temperature changes relative to 2010 due to non-CO 2. used global composition-climate modelling to examine the integrated impacts of adopting stringent European on-road vehicle-emission standards for non-CO 2 pollutants in 2015 in many developing countries. Shindell et al.

Climate 231
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EPA report to Congress finds a strong scientific and technical foundation for mitigating black carbon emissions

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BC is a significant component of particulate matter (PM) pollution, which has been linked to adverse health and environmental impacts through decades of scientific research. The United States contributes about 8% of the global emissions of BC. Earlier post.). —Report to Congress on Black Carbon. emissions in 2005.

Congress 252
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Final session on international mercury convention this week expected to culminate in agreement; UNEP Global Mercury Assessment 2013 finds industrial source Hg emissions may be rising

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The United Nations Environment Programme (UNEP) estimates that 1,960 tonnes of mercury arising from human activities are currently emitted annually into the atmosphere, generated mainly by artisanal and small-scale gold mining (ASGM)—the largest single anthropogenic source globally—and coal- or lignite-fired power plants.

Mercury 262
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ICCT report finds global implementation of advanced emissions and fuel-quality regs could cut early deaths from vehicle emissions by 75% in 2030

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Global trends in vehicle-kilometers traveled (VKT) and early deaths from vehicle-related fine particle exposure (2000–2030). Furthermore, this would also deliver a net annual reduction of at least 200 MtCO 2 e from short-lived climate pollutants in 2030 (using GWP-100 values). Chambliss et al. Click to enlarge.

Emissions 220