@Bartcola, the scale is for PM 2.5 not the air quality index (AQI, 0-500 scale). The AQI index is calculated with other pollutants as well as PM 2.5. The scale for PM 2.5 is in micrograms per meter cubed and is one factor used to calculate the AQI. For more info check out this site https://www.airnow.gov/aqi/aqi-basics/

Best posts made by flacofloats
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RE: Scale for PM 2.5 not correct
Latest posts made by flacofloats
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RE: Your map uploads
Grand staircase loop
https://www.windy.com/upload/6261e71bbda822921441ce33
Upload your own KML, GPX, GeoJSON file at https://www.windy.com/uploader
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RE: Tide Forecast on Windy
Love the site/app I am constantly impressed with the information provided. In the way putting my vote in, I'd love to see a tide chart like the one user lumpet one and user wharfRat posted about. Also as others have mentioned the meter to foot conversion is not correct for tidal height, e.g. 0.23 meters is not 0 ft. Another thing that would be lovely is a graphical interface like this:
where tidal current stations have a graphical representation of direction of flow and water speed. Please and thank you! Keep up the good work!
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RE: Scale for PM 2.5 not correct
@Bartcola, the scale is for PM 2.5 not the air quality index (AQI, 0-500 scale). The AQI index is calculated with other pollutants as well as PM 2.5. The scale for PM 2.5 is in micrograms per meter cubed and is one factor used to calculate the AQI. For more info check out this site https://www.airnow.gov/aqi/aqi-basics/