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My own choice
First you must choose which pollutant and averaging period you want the statistics to be based on. There are two groups of statistics, those based on exceedences (e.g. the number of readings greater than a certain concentration) and more straightforward statistics such as mean and maximum reading or data capture rate. Tick the checkbox if you want your statistics to be based on exceedences.
Once you have made your choices, hit the 'next' button.
Select a pollutant:	NO₂ SO₂ CO O₃ NO NO_X PM₁₀ PM_2.5 PM₁₀ (not ref. equiv.)* PM_2.5 (not ref. equiv.)*
Select an averaging period:	15 minute hourly rolling 8 hour rolling 24 hour 24 hour mean
or:	data capture rate (based on valid hourly mean readings)
Do you want exceedence statistics?

* Note: 'PM₁₀ (not ref. equiv.)' will return statistics based on measurements from TEOM and BAM analysers with no conversion applied. In most cases 'PM₁₀' should be selected, which will return statistics from all PM₁₀ analysers converted to reference equivalent where necessary. Go back to the start.

My own choice

First you must choose which pollutant and averaging period you want the statistics to be based on. There are two groups of statistics, those based on exceedences (e.g. the number of readings greater than a certain concentration) and more straightforward statistics such as mean and maximum reading or data capture rate. Tick the checkbox if you want your statistics to be based on exceedences.

Once you have made your choices, hit the 'next' button.

Select a pollutant:

NO₂ SO₂ CO O₃ NO NO_X
PM₁₀ PM_2.5
PM₁₀ (not ref. equiv.)* PM_2.5 (not ref. equiv.)*

Select an averaging period:

15 minute hourly rolling 8 hour rolling 24 hour 24 hour mean

or:

data capture rate (based on valid hourly mean readings)

Do you want exceedence statistics?

* Note: 'PM₁₀ (not ref. equiv.)' will return statistics based on measurements from TEOM and BAM analysers with no conversion applied. In most cases 'PM₁₀' should be selected, which will return statistics from all PM₁₀ analysers converted to reference equivalent where necessary.

Go back to the start.

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