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The results prior to March 2020 have been derived from the previous website which used a "blog" theme where the most recent data was always the top entry, with previous data going down the page. From now on, with the new website software, data entries will proceed down the page in chronological order. Comment fields will only be inserted where necessary. It should be emphasised that the PM limits given on the graphs are for annual averages and not short exceedances.

Monitoring results for the month of March 2020

NO2 results              Data collection suspended due to Covid19

 Particulates results       [Haresfield sensor failed]

Monitoring results for the month of April 2020

NO2 results      Data collection suspended due to Covid19

Particulates results      [Haresfield sensor failed]

Monitoring results for the month of May 2020

NO2 results      Data collection suspended due to Covid19

Particulates results      [Haresfield sensor failed]

Monitoring results for the month of June 2020

NO2 results      Data collection suspended due to Covid19

Particulates results      [Haresfield sensor failed]

Monitoring results for the month of July 2020

NO2 results 

NO2_July2020.JPG

Particulates results      [Haresfield sensor failed]

Monitoring results for the month of August 2020

NO2 results

NO2_August2020.JPG

Particulates results      [both sensors failed]

Monitoring results for the months of September and October 2020

NO2 results

NO2_Oct2020.JPG

Particulates results      [both sensors failed]

Monitoring results for the month of November 2020

NO2 results

Nov2020_NO2.JPG

Particulates results      [both sensors failed]

Comment

The NO2 results are worth attention regarding variation through the year which I suspect is showing nicely the reduction in traffic pollution as a result of lockdown followed by a return to more normal traffic and levels that are approaching statutory limits particularly in Bath Road, Hardwicke. What is also interesting is that one might expect levels to reduce at more remote places like Haresfield Beacon and Moreton Hill, but even there levels of NO2 are significant. When the particulate sensors are working, the higher levels tend to correlate more with north easterly wind directions, as do sensors elsewhere in the country, and this could be long distance pollution from coal and lignite burning power stations in Poland and eastern Germany. There continues to be no indication of air pollution traceable to the Javelin Park incinerator.

Corrected NO2 results for 2020

2020 NO2 corrected.JPG
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