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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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Harvard/Nanjing study: China’s war on PM2.5 pollution is causing more severe ozone pollution

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In early 2013, the Chinese government declared a war on air pollution and began instituting stringent policies to regulate the emissions of PM 2.5. pollution is falling, harmful ground-level ozone pollution is on the rise, especially in large cities. Over the course of five years, PM 2.5 Ke Li, Daniel J. 1812168116.

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EVs like Tesla are cutting pollution levels and reducing health problems: study

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The study analyzed data on total zero-emission vehicle (ZEV) registrations, air pollution levels, and asthma-related emergency room visits throughout California from 2013 to 2019. per 1000 population in 2013 (standard deviation [SD]: 2.1) “The average nZEV increased from 1.4 per 1000 in 2019 (SD: 14.7).

Pollution 141
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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

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The California Air Resources Board (CARB) has posted a revised draft of California’s proposed Short-Lived Climate Pollutant (SLCP) Strategy. SLCPs are a category of pollutants which remain in the atmosphere for a relatively brief period, but have global warming potentials that are much higher than those of CO 2.

Pollution 150
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California introduces first-in-nation rules to reduce climate “super pollutants” from commercial refrigeration, air conditioning equipment

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The California Air Resources Board recently approved first-in-the-nation rules to curb the impact of hydrofluorocarbon (HFC) refrigerants. HFCs are considered to be super pollutants because they trap heat in the atmosphere thousands of times more effectively than carbon dioxide, the most prevalent greenhouse gas.

Pollution 281
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Study: ozone levels higher across China than in other countries tracking the air pollutant

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For China, sites in 74 major cities with continuous observations from 2013?2017 Many countries regulate ozone because of the damage the pollutant does to plants and people. Since the 1990s, tighter controls on emissions of those ingredients have lessened ozone pollution in many European and US cities. 2014) are included.

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EPA requires trucking companies to reduce air pollution near Los Angeles schools as part of emissions violation settlement

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EPA was joined by the California Air Resources Board, the South Coast Air Quality Management District, and the Los Angeles Unified School District. Heavy-duty trucks can emit drastically higher levels of pollution when not equipped with required emissions controls. —Todd Sax, California Air Resources Board Enforcement Chief.