Anonymous ID: 5723af July 23, 2018, 10:18 p.m. No.2259401   🗄️.is 🔗kun

>>2259328

I found 2 different links with it that could be useful

First is from Beloit College and has all sorts of info in it called Integrative Project - Is my soil contaminated?

 

https://chemlinks.beloit.edu/classes/Chem117/lead/index.html

 

And the 2nd has other values in the soil like arsenic and so on at the bottom

 

https://www2.usgs.gov/blogs/features/usgs_top_story/getting-the-dirt-on-soil/?from=textlink