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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. Recommended 2021 AQG levels compared to 2005 air quality guidelines. They are applicable to both outdoor and indoor environments globally, and cover all settings. Source: WHO.

Pollution 435
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U Birmingham study finds DPFs have limited impact on ultrafine particle emissions

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An open-access paper on their work is published in the journal Environment International While the World Health Organization has not yet set a guideline for safe levels of ultrafine particles, it recognizes that particulate pollution overall is associated with negative impacts on cardiovascular and respiratory health. 2023.107888

Emissions 210
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UNICEF: 300M children worldwide breathing air exceeding WHO pollution guidelines by 6x or more

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Almost one in seven of the world’s children, 300 million, live in areas with the most toxic levels of outdoor air pollution—six or more times higher than international guidelines set by the UN’s World Health Organization (WHO)— according to a new UNICEF report. van Donkelaar, A., Martin, M.Brauer, N. Lyapustin, A. Sayer, and D.

Pollution 150
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US Justice Department launches Office of Environmental Justice, strategy formulated with EPA

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Developed by the Environment and Natural Resources Division (ENRD) in partnership with the Environmental Protection Agency (EPA), the strategy will ensure that the entire Department is using all available legal tools to promote environmental justice.

EPA 150
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New class of coordination polymers for high-performance Li-, Na- and K-ion storage

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The researchers said that these results provide guidelines for higher capacity materials by designing systems with also reversible redox of transition metals, while also provide opportunities for exploring divalent or trivalent cations in this class of conducting coordination polymers. —Wang et al. doi: 10.1039/D2EE00566B.

Li-ion 273
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Global study links daily exposure to ozone pollution to increased risk of death

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Ground level ozone is a highly reactive gas commonly found in urban and suburban environments, formed when pollutants react in sunlight. of total mortality) in the 406 cities that could potentially have been avoided if countries had implemented stricter air quality standards in line with the WHO guideline. g/m 3 (WHO), 120 ?g/m

Ozone 243
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POET outlines lessons from 4-year long startup of Project Liberty cellulosic ethanol project

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Further, POET/DSM, in collaboration with USDA and NLAE (National Laboratory for Agriculture and The Environment, Ames IA) conducted research that concluded with specification of stover harvest guidelines. However, as a retraction of large and established companies shows, financial resources are not sufficient. doi: 10.1002/bbb.2033.