Air Quality Data Continuous

Historic and live continuous air quality data from Bristol City Council and Defra.

• NOx data are from chemiluminescent NOx analysers (API T200).
• Colston Avenue PM₁₀ data are from a BAM 1020 instrument and are corrected to gravimetric.
• PM_2.5 at Parson Street School is from a heated inlet BAM and given as equivalent to gravimetric
• PM₁₀ and PM_2.5 data from the Bristol St. Pauls site are from a TEOM instrument.
• PM₁₀ data from Temple Way are from a BAM instrument.
• Hourly observations are shown.
• BCC data older than the current month have been ratified and corrected in accordance with UK air quality guidance LAQM TG.16.
• For the ratifaction of Defra data, please refer to the UK-AIR website.
• Data from the Defra sites are reproduced under © Crown 2019 copyright Defra via uk-air.defra.gov.uk, licenced under the Open Government Licence (OGL).