I know the ng means nanogram
But I’m curious how would I say the above line of 2.1 ng/kg
For context I got it from this paragraph
a lethal dose of 1.3–2.1 ng/kg in humans
Would it be
2.1 nanogram per kilogram?
Also if I wanted to write that as a decimal number how would i write that?
2.1 ppt (parts per trillion)
Seriously?
Damn!
Lots of good responses so far.
That assumes that the particles are the same mass for the drug and human.
You could say a small percent mass.