assumptions generally work at the low concentrations that are usually expressed
as ppm & ppb. Even considering the density of, say, lead, 400 ppm =
400 mg/l close enough. For higher concentrations, to be accurate one would
have to consider molecular weight considerations.
ug/l of TCE, without doing the calcs I expect there would be a difference if you
needed to know if it was 1.00010 ppb or 1.00015. Which is not usually the
is mass to volume the other is volume to volume
1ug/liter = 1ppb is approximately accurate assuming the material has
the same density as water and you are at standard
Can someone tell me how these lab testing
results translate into parts per billion (ppb)?
Thanks for your help.
Range Detected Average
2001 ND-1.45 ug/L 0.47
2001 ND-1.56 ug/L 0.64
2001 ND-2.38 ug/L 0.94