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Study finds COVID-19 lockdown in China brought only slight reduction in PM2.5 and ozone

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Large improvements of air quality in China during the lockdown have been widely reported, but new research shows that two pollutants harmful to human health—fine particulate matter (PM 2.5 ) and ozone—were only slightly reduced. and ozone were only slightly reduced or barely affected.

Ozone 243
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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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Study finds significant slowdown in decrease of NOx emissions in US; implications for air quality management

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NO x emissions have not been decreasing as expected in recent years (2011–2015) when comparing top-down estimates from satellites and surface NO 2 measurements to the trends predicted from the US Environmental Protection Agency’s emission inventory data, according to a new study by an international team of researchers.

Emissions 150
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WMO reports GHG concentrations at highest in 800K years

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ppm in 2015 because of a combination of human activities and a strong El Niño event. Concentrations of CO 2 are now 145% of pre-industrial (before 1750) levels, according to the Greenhouse Gas Bulletin. ppm in 2015. Concentrations of CO 2 are now 145% of pre-industrial (before 1750) levels. Nitrous Oxide.

2016 186
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EEA report finds most Europeans in cities still exposed to levels of air pollution exceeding WHO guidelines

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The European Environment Agency’s (EEA’s) “ Air quality in Europe — 2019 report ” shows that almost all Europeans living in cities are still exposed to air pollution levels that exceed the health-based air quality guidelines (AQGs) set by the World Health Organization (WHO). About 8% of the urban population in the EU-28 was exposed to PM 2.5

Pollution 170
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New Volvo XC90 debuts enhanced multi-filter that improves interior air quality

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CleanZone is an approach to controlling interior air quality and providing a better driving environment through innovative solutions for enhanced wellbeing and health. The multi-filter was designed especially for the SPA platform and will first appear in the all-new XC90 in the beginning of 2015. Ground-level ozone.

Volvo 236
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EPRI-NRDC report finds widespread vehicle electrification and a cleaner grid could lead to substantial cuts in GHG by 2050

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As with the earlier assessment, this study consists of two separate, but related, analyses: greenhouse gas emissions from 2015-2050, and air quality impacts in 2030. This research points to the importance of two fundamental and parallel trends in energy and the environment. levels throughout the United States.

EPRI 150