Open Data Bristol

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Real time air quality data

Historic and live air quality data. NOx data are from chemiluminescent NOx analysers (API T200) operated by Bristol City Council since 2000. Hourly observations of oxides of nitrogen (NOx), nitric oxide (NO) and nitrogen dioxide (NO2) are shown. Data older than the current month have been ratified and corrected in accordance with UK air quality guidance LAQM TG.16.

PM2.5 data are from a BAM 1020 instrument corrected to gravimetric.

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