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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. This, in turn, is believed to have had an effect on pollution levels in the atmosphere. In contrast, ozone levels increased. One consequence of the coronavirus pandemic has been global restrictions on mobility.

Pollution 236
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Less air pollution leads to higher crop yields, says study

Envirotec Magazine

A new Stanford University-led study seems to reveal that removing one thing in particular – a common air pollutant – could lead to dramatic gains in crop yields. Nitrogen oxides, or NOx, are among the most widely emitted pollutants in the world. A NOx-ious problem. Image credit: Lobell, et al. Science Advances.

Pollution 130
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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. In 2010, the Central Government of China integrated the "Guideline on Strengthening Joint Prevention and Control of Atmospheric Pollution to Improve Air Quality" into its 12th Five Year Plan.

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UK Lockdown and air pollution: Nitrogen dioxide halved but sulphur dioxide doubled, says study

Envirotec Magazine

A University of Liverpool study of air pollution in the UK during the first 100 days of lockdown seems to show that whilst nitrogen oxide levels were cut by half, levels of sulphur dioxide increased by over 100%. and ozone, and to compare the data to the past seven years. and ozone, and to compare the data to the past seven years.

Pollution 130
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Early COVID-19 lockdowns had less impact on urban air quality than first believed

Envirotec Magazine

The first COVID-19 lockdowns led to significant changes in urban air pollution levels around the world, but the changes were smaller than expected – a new study appears to reveal. In parallel, the lockdowns caused (weather-corrected) concentrations of ozone in cities to increase. The changes in PM2.5 differ from city to city.

Ozone 162
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How cleaning up shipping cut pollution — and warmed the planet

Grist

Michael Diamond thought he’d have to wait until this year, at least, to have enough data to understand how a shipping regulation aimed at curbing pollution affected the clouds that deck the ocean. When industries around the world emit fewer of these pollutants, clouds darken. “They’re so variable. percent to 0.5

Pollution 115
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Seeking clarity

Envirotec Magazine

It attempts a snapshot of air pollution exposure in over 7000 cities worldwide, and its impact on health. and NO2 pollution, with fine particles seeming to be an affliction of the world’s poorer regions especially, while NO2 is a problem for city dwellers everywhere. In 2020, the least stringent target of 35 ?m/m3