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Comment by buldoeo | Hacker News Reader

Correct me if I'm wrong, but No 5 already exists?! I'm from Europe. I have an app on my phone that shows me the pollution in the city I am. I check on it every time I'm in different places. It's called AirVisual. I installed it from google play, I have android.

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I think he means a much more granular pollution map than what's available at the city level. Something like being able to get accurate pollution data at sub-kilometer precision, especially in suburb areas where monitoring stations tend to be sparse.

There is a project in Germany which collects the data of stations you can build yourself with an esp8266 and a sensor. https://luftdaten.info/

Thanks for the link.

Users outside of Germany already use it. I think I will participate. For some time I was thinking about an amateur network of air pollution sensors, that seems to be it. Is there something with more reach in Europe or at least Poland (where I'm at)?

Yes I just realized that it's already in use outside of Germany as I visited the website. I will set it up myself as well.

When there are big air pollution problems, people and municipalities usually install their own monitors.

Say, I live in a region with a very bad air quality in winter, and in the vicinity of my house there're at least 4 devices I can (and do) check - 2 from airly.eu (within 200m, installed by the village) and 2 from luftdaten.info (within ~1km, installed by the locals) and one mine

Unsure how many sensors they have in other metros, but here in the Salt Lake Valley, the Purple network does a great job of this.

https://www.purpleair.com/map?opt=1/i/mAQI/a10/cC0#11.37/40....

We have that, although not very granular, in the Netherlands: ‪https://www.luchtmeetnet.nl/metingen/locatie/Groningen-Europ...

Check the values (eg BM2.5) around new years eve due to fireworks...

There is also Plume Labs, which includes free app for viewing air quality, and a personal sensor.

https://plumelabs.com/en/

It's also directly integrated in Apple Maps already but it's probably about more information than just the AQI.

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