Air Quality Monitoring - Diffusion Tube Results

<dp-prose> <p>Air pollution is monitored by the London boroughs within their own area. There are a number of different monitoring methods available, including passive diffusion tubes. These diffusion tubes are small, passive samplers which measure the concentration of nitrogen dioxide (NO2) in the air at a certain location, providing a monthly average measurement. The diffusion tubes supplement the existing network of more accurate reference analysers across London.</p> <p>London boroughs collate and report their diffusion tube monitoring data to the GLA and individually publish the results on their own websites. The GLA has collated the results from all London boroughs together into one spreadsheet. The concentrations measured are reflective of the sites selected by the boroughs and therefore comparing levels between boroughs is not an equal or fair comparison. This page is updated annually.</p> <p>For technical guidance on the use of diffusion tubes, refer to the <a href="https://www.london.gov.uk/sites/default/files/llaqm_technical_guidance_2019.pdf" target="_blank">London Local Air Quality Management (LLAQM) Technical Guidance document</a>.</p> </dp-prose>

Cite as: Greater London Authority. Air Quality Monitoring - Diffusion Tube Results. https://www.data.gov.uk/dataset/air-quality-monitoring-diffusion-tube-results1

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