Data FAQs

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  • What is the uncertainty in the measurement data?

  • What instrumentation and methods are used to collect the pollutants and what measurement techniques are used to analyse them?

  • How do you decide whether the data captured from a monitoring site are sufficient or not?

  • How is the UK preventing global warming and what is the Government's forecast for the next 10 years regarding decreasing pollution?

  • What is the relationship between NO2 and NOx?

  • How do I use independent QA/QC audit results in the ratification of air quality monitoring data to obtain a final ratified dataset?

  • How do I find out what data are available?

  • How do you convert ppb into µg/m3?

  • Which pollutants are measured regularly?

  • Does the measurement of ozone at the automatic monitoring stations take the natural background level into consideration?

  • Where can I find more information about ammonia at waste water treatment works?

  • What is the definition of Running annual mean and Running 8hr mean.

  • Are there any statistics available for the error/tolerance of provisional data from automatic monitoring sites within London?