[Ráfaga] #2869: mercury, free

[Rafagas team]

#2869: mercury, free

Fri, 27 Sep 2024 by Raf

* Understanding mercury contamination from historic gold mining in the
Sierra Nevada, California, using a spatial data visualization tool for
sediment, water, and biota

https://ca.water.usgs.gov/sierra-mercury/

* OpenFreeMap allows the addition of custom maps to any website and
application for free without any limitations

https://openfreemap.org/

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Translated by Isaac, Jaume, Jorge, and Wladimir

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