Nitrogen dioxide halved but sulfur dioxide doubled — ScienceDaily

A University of Liverpool study of air pollution in the UK during the first 100 days of lockdown has revealed that whilst nitrogen oxide levels were cut by half, levels of sulphur dioxide increased by over 100%.

Researchers from the University’s School of Environmental Sciences analysed data from the Department for Environment, Food & Rural Affairs (DEFRA) air-quality sensors and UK Met Office stations to see how lockdown measures had affected levels of nitrogen dioxide, sulphur dioxide, particle matter (PM2.5) and ozone, and compare it to data from the past seven years.

The study revealed that during this period (from 23rd March to 13 June 2020) nitrogen dioxide (NO2) levels were cut by half which would relate to the reduction in vehicle emissions. More surprisingly, though, the analysis found that levels of sulphur dioxide (SO2), typically created by UK industry but in sharp decline, were more than double that of

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Nitrogen dioxide halved, but sulphur dioxide doubled

air pollution
Credit: CC0 Public Domain

A University of Liverpool study of air pollution in the UK during the first 100 days of lockdown has revealed that whilst nitrogen oxide levels were cut by half, levels of sulfur dioxide increased by over 100%.


Researchers from the University’s School of Environmental Sciences analyzed data from DEFRA air-quality sensors and UK Met Office stations to see how lockdown measures had affected levels of nitrogen dioxide, sulfur dioxide, particle matter (PM2.5) and ozone and to compare this to the past seven years.

The study revealed that during this period (from 23rd March to 13 June 2020) nitrogen dioxide (NO2) levels were cut by half which would relate to the reduction in vehicle emissions. More surprisingly, though, the analysis found that levels of sulfur dioxide (SO2), typically created by UK industry but in sharp decline, were more than double that of previous years.

Researchers also explored

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