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WHO issues new, lower Global Air Quality Guidelines for classical pollutants

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New WHO has issued new Global Air Quality Guidelines (AQGs) that reduce levels of key air pollutants, some of which also contribute to climate change. Since WHO’s last 2005 global update, there has been a marked increase of evidence that shows how air pollution affects different aspects of health. Source: WHO. nitrogen dioxide (NO?)

Pollution 435
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Study: 25% EV adoption would save US $17B annually from avoided climate change & pollution damages

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A new study led by researchers from Northwestern University projects that if electric vehicles replaced 25% of combustion engine cars currently on the road, the United States would save approximately $17 billion annually by avoiding damages from climate change and air pollution. The open-access paper is published in AGU’s journal GeoHealth.

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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.

Ozone 150
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Rice/EPA study finds ground-level ozone falling faster than CMAQ model predicted

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Researchers from Rice University and the US Environmental Protection Agency (EPA) report in a paper in the journal Atmospheric Chemistry that particularly in Northeastern cities, ozone levels dropped even beyond what was anticipated by cutting emissions of NO x from 2002 to 2006. —Daniel Cohan, co-author. Earlier post.).

Ozone 218
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EPA Climate Change Adaptation Plan sees likely increase in tropospheric ozone, with more difficulty in attaining NAAQS in many areas

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Among the many climate-related vulnerabilities that can impact its mission, the US Environmental Protection Agency (EPA) cites a likely increase in tropospheric ozone pollution as potentially making it more difficult to attain National Ambient Air Quality Standards ( NAAQS ) in many areas with existing ozone problems.

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Toyota develops tropospheric ozone-concentration simulator for South and East Asia

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have developed a simulator able to predict tropospheric ozone concentrations across the whole of South and East Asia. Tropospheric ozone is the main cause of photochemical smog, an atmospheric pollutant harmful to human health and plant growth. Toyota Motor Corporation (TMC) and Toyota Central R&D Labs.,

Ozone 199
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Portable sensors enable monitoring of pollution on smart phones; inferring pollution maps with greater granularity

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Boxes represent pollution reading locations during that window. Computer scientists at the University of California, San Diego have built a portable pollution sensors that transmit transmit their air quality readings to smart phones, allowing users to monitor air quality in real time. Nikzad et al. Click to enlarge. Click to enlarge.

Pollution 236