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Lockdown impacts: New study collects data on pollutants in the atmosphere

Envirotec Magazine

New York’s Times Square lies empty during the coronavirus city lockdown on 29 March 2020. An international team led by Forschungszentrum Jülich ‘s Institute of Climate and Energy Research has now published what it describes as a comprehensive review providing an overview of results up to September 2020.

Pollution 236
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Early COVID-19 lockdowns had less impact on urban air quality than first believed

Envirotec Magazine

In parallel, the lockdowns caused (weather-corrected) concentrations of ozone in cities to increase. NO2 is a key air pollutant from traffic emissions, associated with respiratory problems, while ozone is also harmful to health, and damages crops. million deaths each year.

Ozone 162
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China’s new frontier for VOC regulations

GreenBiz

Volatile organic compounds (VOCs) combine with nitrogen oxide to create ozone, a key precursor to smog. When energy use surges in the autumn and winter seasons, particulate matter and ozone increase to dangerously high levels.

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Prevention: A profitable mindset when it comes to gas leaks

Envirotec Magazine

CFCs have a high chlorine content and have been linked strongly to ozone depletion and global warming. HCFCs were considered an improvement when they were first introduced, as they have lower chlorine and make a lesser contribution to ozone depletion and global warming. Green hydrogen. About the author.

Ozone 130
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Risk, doubt, and the burden of proof in the climate debate

GreenBiz

Sat, 05/16/2020 - 14:20. © 2020 by the Regents of the University of California. More often, it is implicitly built into the conversation, as it was in so many other public debates, like those over leaded gas, ozone and tobacco. Risk, doubt, and the burden of proof in the climate debate. Barbara Freese.

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Less air pollution leads to higher crop yields, says study

Envirotec Magazine

These gases can directly damage crop cells and indirectly affect them through their role as precursors to formation of ozone, an airborne toxin known to reduce crop yields, and particulate matter aerosols that can absorb and scatter sunlight away from crops. Nitrogen oxides, or NOx, are among the most widely emitted pollutants in the world.

Pollution 130
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UK substantially underestimates its methane emissions from oil and gas production – and many other countries probably do too

Envirotec Magazine

Due to its climate and indirect health impacts (methane is a precursor for ozone which is an air pollutant that damages human health and crops), methane mitigation has recently become a global policy priority.

Methane 246