[Ráfaga] #2119: pollution, tiles, markers

[Rafagas team]

#2119: pollution, tiles, markers

Thu, 03 Aug 2023 by Raf

* You can access real-time worldwide information on PM2.5 air
pollution through the World Air Quality Index. This data is sourced
from GAIA control stations, which are affordable and powered by WIFI
and USB

https://aqicn.org/map/world/

* With a single executable binary, Tilemaker can create Mapbox Vector
Tiles from an OSM pbf extract without a database

https://tilemaker.org/

* he Historical Marker Database is an online catalog that collects
images of outdoor signs, monuments, and permanent plaques through user
contributions

https://www.hmdb.org/

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Translated by Isaac, Jaume, Jorge, and Wladimir

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