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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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Air pollution is the leading environmental cause of death worldwide according to the State of Global Air 2018 , the annual report and interactive website published by the Health Effects Institute (HEI). Millions of people around the world are also exposed to air pollution in their homes arising from the use of solid fuels (e.g.,

Pollution 218
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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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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. Impacts of worldwide vehicle emissions in 2030 compared with 2000. Shindell et al. trillion avoided health damage and $US1.1-4.3

Climate 231
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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). Ozone pollution also damages crops and other plants. Scenario A2 and RCP 8.5. Ozone formation.

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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. Therefore, estimates of the net effect of BC emissions sources on climate should include the offsetting effects of these co-emitted pollutants. Earlier post.).

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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
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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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Apart from contaminated sites, the mercury pollution detected today is often found in locations very far away from its original source. For example, West Africa was thought in 2005 to have minimal ASGM activity but is now recognized as an important source region.

Mercury 262