David Fraser
Senior Member.
It seems that you are very aware of the sources of aluminium are but it may be useful to know the PTWI (provisional tolerable weekly intake) has been set by the WHO at 2/mg/kg an example of which is shown asWhile that opinion may be true, we've recently eliminated aluminum cans, cooking utensils, deodorants and antacids / food containing from our lives. I can't imagine 0 is not better than some positive value.
If it's OK with the group, I'd like to continue to post my future rainwater sample findings here to see if they change, and if they change maybe we can brainstorm why.
http://apps.who.int/food-additives-contaminants-jecfa-database/chemical.aspx?chemID=6179"The Committee established a provisional tolerable weekly intake (PTWI) of 2 mg/kg body weight based on a no-observed-adverse-effect level (NOAEL) of 30 mg/kg body weight per day and application of a safety factor of 100."
https://www.ncbi.nlm.nih.gov/pubmed/26414493Excuse me for if I seem to palm you off but a search on the WHO site or the web in general will provide you with a wealth of levels that we are subjected to. An example would be a report on the dietary intake from wheat flour.
I hope that would be of some help.