That depends on the substance. Different substances have different densities (mass / volume).
1 mg = 1,000 ug 1 mg per Liter = 1,000 ug per Liter. 1 mg per Liter is 1,000 times as concentrated as 1 ug per Liter.
well, ppm is mg per litre. ppb is ug/litre so 200ug/l is 200ppb, so more
Ug Ug Ug Ug
There are 0.1mg in 100 micrograms (ug). You have to divide by 1000 to convert ug to mg.
14.8g
1x10^6 pg= 1 ug or 1,000,000 pg = 1 ug
0.4165 mg
There are 45000000000 micrograms.
o.ooo3 ug
ug ug
6µg equates to 0.006mg
There are 2 syllables in "ugly."