[HeatrayEnjoyer]

I wouldn't call it nothing.

Current regulation requires water supply at the tap to measure <10 µg/L, changing to <5 µg/L next decade.

2-3 µg/L is significant.

[s1artibartfast]

You are comparing level in the blood and water.

[HeatrayEnjoyer]

I am referencing water regulations, I never said anything about blood.

[elcritch]

Worse the parent says 2-3 μg/dL or 20-30 μg/L right?