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A fresh crop of data

Envirotec Magazine

Record hot temperatures in the UK over the summer caused significant changes to the levels of harmful pollutants such as ozone and particulate matter, prompting a number of novel observations by the National Centre for Atmospheric Science (NCAS). Ozone events and their origins. g in rural areas, and the WHO guideline limit is 100?g.

Ozone 227
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Study flags night-time air pollution in China as potential health threat

Envirotec Magazine

China is a night-time ‘hot-spot’ for the production of nitrate radicals (PNO3) that could have a major impact on health-threatening ozone and fine particulates (PM2.5) The study seems to show that, if recent increasing ozone pollution trends continue, nighttime oxidation in China will increase further even if NOx emissions are reduced.

Pollution 257
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What are ‘planetary boundaries’ and why should we care?

Envirotec Magazine

Like all other living organisms, we survive by using Earth’s resources. We’ve done it already in the 1990s, when international cooperation quickly phased out ozone-depleting chemicals and stopped the dangerous ozone hole from getting ever-bigger. We are still in the green for ozone-depleting chemicals. The bill comes due.

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An eco-friendly process for removing odorous VOCs in industries

TechXplore

A research team has developed a green technology for eliminating odorous volatile organic compounds (VOCs) and their by-products, such as residual ozone and formaldehyde.

Ozone 56
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This year’s ozone hole could be the smallest it has been in 30 years

AGreenLiving

For decades, scientists have closely observed the ozone layer , which protects Earth from the sun’s harmful ultraviolet (UV) radiation. Ozone is created in our atmosphere when the sun’s high-energy UV rays rupture the stable covalent bonds of atmospheric oxygen (O2) molecules, transforming them into free radicals.

Ozone 28
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Heated VOC analyser goes portable

Envirotec Magazine

NMVOCs are organic compounds that differ significantly in their chemical composition but display similar behaviour in the atmosphere. However, users will be particularly impressed with the chassis design, because it allows the internal electronics to simply slide out on a rail and unfold for maintenance operations.

Ozone 130
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Lockdown impacts: New study collects data on pollutants in the atmosphere

Envirotec Magazine

It focuses on the following air pollutants: nitrogen dioxide, particulate matter, ozone, ammonia, sulfur dioxide, black carbon, volatile organic compounds (VOCs), and carbon monoxide. In contrast, ozone levels increased. The study also seemingly highlights current gaps in the data collection and the need for further research.

Pollution 236