URI: https://soilwise-he.github.io/soil-health#Chromium
https://soilwise-he.github.io/soil-health#Chromium
commonly regulated heavy metals
monitored heavy metals
http://www.eionet.europa.eu/gemet/concept/1401
http://opendata.inrae.fr/thesaurusINRAE/c_15743
http://aims.fao.org/aos/agrovoc/c_1595
Cr