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Can anyone find on the internet: 1. An explanation of how AQI is calculated? Some initial searching turns up very little information as to the basis of the ind
by GreeniFi 7y ago
Can anyone find on the internet:
1. An explanation of how AQI is calculated? Some initial searching turns up very little information as to the basis of the index.
2. How the safety levels (green, orange, red, purple) are decided.
It seems somewhat opaque. Anyone know why this is?
- zokier 7y agoAbout NAQI link here leads to the scaling tables, and there is also link to Excel sheet to calculate the index value. https://cpcb.nic.in/National-Air-Quality-Index/ https://cpcb.nic.in/National-Air-Quality-Index/ For US, EPA has some additional info available: https://www3.epa.gov/airnow/aqi-technical-assistance-document-sept2018.pdf https://www3.epa.gov/airnow/aqi-technical-assistance-documen...