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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. This increase was a result of atmospheric chemical processes caused by reduced nitrogen oxide levels in the air.

Pollution 236
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New flue solution for VOCs

Envirotec Magazine

while minimizing the ozone generation typically produced by plasma, according to the group. Additionally, the combined NTP and WS system can minimize or eliminate secondary air pollution by capturing ozone and other gaseous intermediate organics, which are by-products of the NTP process.

Ozone 147
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Sanitisation chamber to support clothing and PPE reuse

Envirotec Magazine

Anthony Burns, Chief Operating Officer of ACS Clothing, said that “introducing circularity and reuse of PPE has presented an interesting but not insurmountable environmental opportunity.”. Every piece of PPE presents a sustainability and recycling challenge.

Fashion 217
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Air pollution significantly reduces pollination by confusing butterflies and bees

Envirotec Magazine

The study, funded by the Natural Environment Research Council, used a purpose-built fumigation facility to regulate levels of nitrogen oxides (NOx) – present in diesel exhaust fumes – and ozone in an open field environment.

Pollution 182
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Measuring NOx in combustion

Envirotec Magazine

The chemiluminescence reaction of ozone and nitric oxide causes the oxidation of nitric oxide (NO) to nitrogen dioxide (NO2) which generates photons that are measured using a photomultiplier tube. Typically, at Signal Group, the flows of ozone and sample are set in a ratio of 10:1. Ozonator design. NO2 converter. Vacuum pump.

Ozone 130
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Good vibrations (for continuous pollutant measurement anyway)

Envirotec Magazine

Its high-energy UV radiation in particular is strongly absorbed by all materials and triggers photochemical reactions of compounds present in the air. A well-known example is the formation of ground-level ozone when UV light hits nitrogen oxides. Sunlight has a major influence on chemical processes.

Pollution 130
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Ammonia tuning: Developing catalysts for cleaner fuels

Envirotec Magazine

Some oxides of nitrogen are not GHGs but they do perform a role in the formation of tropospheric ozone which is a GHG. Ammonia presents a number of challenges as a fuel for engine combustion. Nitrous oxide (N2O) however, is produced by combustion processes, and is a potent GHG.