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Knowing the information will help me decide where/when to go, and whether I should bring some air-related equipment (mask, air purifier, etc.).

What I have unsuccessfully tried so far:

  • Wikipedia typically doesn't show the average air quality during a given month/week/day based on historical data.
Franck Dernoncourt
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1 Answers1

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https://www.epa.gov/outdoor-air-quality-data/air-data-tile-plot:

Plot daily AQI values for a specific location and time period. Each square or “tile” represents one day of the year and is color-coded based on the AQI level for that day. The legend tallies the number of days in each AQI category.

enter image description here

They also make all the data available as a CSV file for each year, so one can compute the daily/weekly/monthly trend by averaging over several years.

airnow.gov gives the air quality for a given day in different locations in a US state in the past. Downside: doesn't give directly a clear daily/weekly/monthly trend.

enter image description here

Franck Dernoncourt
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