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    PM2.5 way too low

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    • B
      bernardmic | Premium
      last edited by bernardmic

      IQAir_Windy.jpg Windy PM2.5 reports around 71 uG/cm3 for Quebec city YQB. Official government IQAir website report around 170 for same PM2.5 map. Why is it so different ?

      B 1 Reply Last reply Reply Quote 0
      • B
        bernardmic @bernardmic | Premium
        last edited by

        @bernardmic I meant uG/m3 and not cm3

        idefix37I 1 Reply Last reply Reply Quote 0
        • idefix37I
          idefix37 Sailor Moderator @bernardmic
          last edited by idefix37

          @bernardmic

          This PM2.5 layer in Windy is for the atmosphere but not at ground level.

          E1DD7CE0-CACD-4E0B-B73E-CCD3B2DD1E3D.jpeg

          Air quality stations are giving the content of PM 2.5 at ground level. So if you want to make a comparison you have to select Air quality stations in the POIs in Windy, displaying PM2.5 in μg/m3.

          022D3AFD-7E51-45F6-8FA3-EE8B9C099FC1.jpeg

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          • B
            bernardmic @idefix37 | Premium
            last edited by

            @idefix37 Yes you are correct and I am wrong. Sorry about MY own confusion.

            Regards

            Michel

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