4 ms·
It is misleading because "parts per million" is perceived like a very small number by the average human, while in reality one part per million is a rather subst
by forgotmypw 8y ago
It is misleading because "parts per million" is perceived like a very small number by the average human, while in reality one part per million is a rather substantial amount of a substance in the water.
- creddit 8y agoIt's exactly 0.0001% of the water no matter how much water there is. Context of what the substance is and its mechanism of action would determine whether or not that "is a rather substantial amount".