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Looking for on open source weather website like Breezy Weather on f-droid, but can be accessed through a browser (lemmy.ca)
submitted 1 month ago by snoons@lemmy.ca to c/opensource@programming.dev
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My government doesn't include PM2.5 in it's weather forecasts and I want to start posting PSAs in city/provincial comms to let people know of poor/unhealthy air quality my government seems to ignore. Ideally this website will be much like breezy and use data fro the Copernicus satellite (which Open Meteo does). I tried searching but all I can find is api's, repositories, and articles on foss weather apps.

Currently Breezy shows AQI is 90 and will be ~120 by midnight, which means if one spends about an hour outside without a k/n95 mask or p100 respirator there can be health consequences. At the same time the governments forecasting shows it's AQI as "3 - Low Risk" for the whole week, which is not true at all. In fact I'm not aware of time when it wasn't 3 lol.

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[-] leftascenter@jlai.lu 3 points 1 month ago

These are mostly done by national weather services.

For Canada (from your post history) I found this:

https://www.canada.ca/en/environment-climate-change/services/air-quality-health-index/weather.html

Leading to such maps:

https://weather.gc.ca/firework/firework_anim_e.html?type=avg&utc=12

[-] snoons@lemmy.ca 2 points 1 month ago* (last edited 1 month ago)

~~Thanks, but as it also doesn't include data from Copernicus and does not forecast PM2.5 unless it's from a wildfire.~~ The pollution in my area is mostly from burning fuel, construction, road dust, etc.. I think it's usually blown away, but with the current heat dome all of it just builds up.

Though, I did find the Copernicus Browser Which shows the same information as the Canadian Governments map. Now I am confused as to how Breezy reports local aqi as unhealthy when Copernicus doesn't show as such looking at it's map. 😵‍💫

*The question then becomes: What is the cause of discrepancy between Copernicus data and Open-Meteo? But that's beyond the scope of this post so...

[-] artyom@piefed.social 2 points 1 month ago

Now I am confused as to how Breezy reports local aqi as unhealthy when Copernicus doesn’t show as such looking at it’s map.

According to the docs , there's no source for Canadian air quality.

[-] snoons@lemmy.ca 1 points 1 month ago* (last edited 1 month ago)

Thanks! And also: Oh no! Now I'm even more confused as to where the AQI data in Breezy comes from.

*I suspect it takes data from citizen provided sensors and forecasts using the WHOs aqi which has a lot more focus on pm2.5 resulting in the discrepancy.

this post was submitted on 14 Jul 2026
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