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Latest Data:  Updated 22/10/2017 17:00 GMT

Parameter Index Band Concentration Period
PM10 2 Low 28 µg/m3 (INDIC GRAV) 24 Hour mean
O3 2 Low 66 µg/m3 8 Hour mean
NO2 1 Low 4 µg/m3 Hourly mean
NO not applicable 0 µg/m3 Hourly mean
NOXasNO2 not applicable 4 µg/m3 Hourly mean

Note: Values are based on provisional data. Data are GMT hour ending.

For more information on this monitoring data please contact this local authority at

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Latest News

Welsh Air Quality Forum Annual Seminar Thursday 12 October, Caerphilly Council Chamber at Penallta House
Published Date: 14/09/2017

We are pleased to announce this years Welsh Air Quality Forum will take place on Thursday 12th October, Caerphilly Council...

» Conference Booking Form (pdf)
» Final Agenda (pdf)

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Latest Report

Comparison of the Modelled National Air Quality Maps with 2015 Welsh AQ Monitoring Data
Published Date: 14/03/2017

» Download report (pdf)

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WAQF 2017 Seminar: Policies introduction to NO2 plans and Clean Air Zones and Regional and Local Measures
Published Date: 19/10/2017

The Annual Welsh Air Quality Forum took place on Thursday 12th October, Caerphilly Council Chamber at Penallta House. The seminar...

» Programme (pdf)
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