How do I verbally say 2.1 ng/kg - eviltoast

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?

  • Paragone@lemmy.world
    51·
    6 months ago

    0.0000000021g/kg

    or 0.0000000000021kg/kg, if you wanted the same units both sides…

    ( I’m presuming this was your last-line’s request )