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Perth High Street


Latest pollution level at this site is: LOW (Index 1)

Last updated: 28/09/2020 07:00

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Statistics for Perth High Street

Monthly Statistics (monthly averages) for 2020

The monthly data below are average concentration data, followed by data capture rates (shown as a percentage of each month).
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
10 11 38 35       
100% 93% 100% 99% 100% 60% 6% 63% 99%       

Annual Statistics for 2020

Annual Hourly Mean (to date) 10 µg/m3   Provisional  79% DC
Max Daily Mean 241 µg/m3   Ratified  79% DC
Max Hourly Mean 2152 µg/m3   Provisional  79% DC


  • P - Provisional Data
  • R - Ratified Data

Note: For a strict comparison against the objectives there must be a data capture of 85% or greater throughout the calendar year.

Exceedance Statistics for 2020

There are no defined exceedance criteria for this pollutant.

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