Here's the WHO report for folks who are interested: https://www.who.int/water_sanitation_health/dwq/nutrientschap12.pdf https://www.who.int/water_sanitation_hea

Here's the WHO report for folks who are interested: https://www.who.int/water_sanitation_health/dwq/nutrientschap12.pdf https://www.who.int/water_sanitation_health/dwq/nutrientscha...