With today being Clean Air Day Wrexham Council has compared the Nitrogen Dioxide levels at the air quality station at Victoria Road in Wrexham recorded during the lockdown when there were less vehicles on the road, with those recorded during the same period last year.
The data shows that for the national lock down, the levels of Nitrogen Dioxide were lower in 2020. The average Nitrogen Dioxide levels recorded over the lockdown period of March 22 to June 1 were:
- 2019 – 18.8 µg/m³
- 2020 – 11.7 µg/m³
Which is approximately a 38% reduction in recorded Nitrogen Dioxide levels in 2020. Both values are well below the annual 40 µg/m³ limit in the Air Quality Regulations.
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The above is a simple like for like comparison of the recorded Nitrogen Dioxide levels with no other factors being considered. It is anticipated that in the coming months there will be further scientific studies carried out on a national level.
Further information on Wrexham Councils air quality program can be found on our website http://old.wrexham.gov.uk/english/environment/air_quality/index.htm
Further information on air quality in Wales, including monitoring results, can be found on the Welsh air quality website https://airquality.gov.wales/
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