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

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For that reason, and after a systematic review of the accumulated evidence, WHO has adjusted almost all the AQGs levels downwards, warning that exceeding the new air quality guideline levels is associated with significant risks to health. When action is taken on these classical pollutants—particulate matter (PM), ozone (O?),

Pollution 435
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Obama Administration withdraws proposed rulemaking on strengthened ozone standards

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In a statement released this morning, President Barack Obama said he has requested that US Environmental Protection Agency (EPA) Administrator Lisa Jackson withdraw the agency’s draft Ozone National Ambient Air Quality Standards (NAAQS) rulemaking. Earlier post.) National Ambient Air Quality Standards (NAAQS).

Ozone 259
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HEI study in Europe finds evidence of health effects at lower levels of air pollution

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In the report, the investigators describe the development of new exposure models for all of Europe for four pollutants: fine particulate matter (PM 2.5 ), black carbon (BC), nitrogen dioxide (NO 2 ), and ozone (O 3 ), as well as PM 2.5 Initial results were published in 2019 and Phase 2 results are under review.

Pollution 313
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Study: 2/3 of aviation climate impact due to emissions other than CO2

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This new study is based on a thorough review of a decade of research on aviation emissions. Net warming from NO x emissions is a sum over warming (short-term ozone increase) and cooling (decreases in methane and stratospheric water vapor, and a long-term decrease in ozone) terms. Aviation accounts for 3.5% —Lee et al.

Climate 448
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California ARB releases concept paper for public review on reducing short-lived climate pollutants

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The California Air Resources Board (ARB) has released , for public review, a concept paper to initiate discussion on the development of a Short-Lived Climate Pollutant Reduction Strategy. Short-lived climate pollutants (SLCPs) include methane, tropospheric ozone, black carbon, and fluorinated gases.

Pollution 150
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Study provides more insight into air pollution mechanisms that cause cardiovascular diseases

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Scientists around Professor Thomas Münzel, Director of Cardiology I at the Department of Cardiology at the Medical Center Mainz of Johannes Gutenberg University Mainz (JGU), reviewed the mechanisms responsible for vascular damage from air pollution together with scientists from the UK and the US. —Münzel et al.

Pollution 220
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Renault makes public its lifecycle study of Fluence ICE vs Fluence EV

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Renault’s comparison of the carbon footprint of EV and ICE vehicles over production, operation and end of life. Renault also had a panel of experts review the report the ensure full compliance with ISO 14 030 norms related to LCA; the company also published that review report. Quantifies the production of pollutant ozone (?

Li-ion 364