I got my answer! Thanks for all answers

Edited August 23, 20232 yr by Xana

It depends on the sample

 

39730	2,4-D, water, unfiltered, recoverable, micrograms per liter	547	2,4-Dichlorophenoxyacetic acid (2,4-D)	94-75-7	39730	2,4-D IN WHOLE WATER SAMPLE (UG/L)	15651	94-75-7	2,4-D	Acetic acid, (2,4-dichlorophenoxy)-
39731	2,4-D, bed sediment, recoverable, dry weight, micrograms per kilogram	547	2,4-Dichlorophenoxyacetic acid (2,4-D)	94-75-7	39731	2,4-D IN BOTTOM DEPOSITS (UG/KG DRY SOLIDS)	15651	94-75-7	2,4-D	Acetic acid, (2,4-dichlorophenoxy)-
39732	2,4-D, water, filtered, recoverable, micrograms per liter	547	2,4-Dichlorophenoxyacetic acid (2,4-D)	94-75-7	39732	2,4-D IN FILT. FRAC. OF WATER SAMPLE (UG/L)	15651	94-75-7	2,4-D	Acetic acid, (2,4-dichlorophenoxy)-
39733	2,4-D, suspended sediment, recoverable, micrograms per liter	547	2,4-Dichlorophenoxyacetic acid (2,4-D)	94-75-7	39733	2,4-D IN SUSP. FRAC. OF WATER SAMPLE (UG/L)	15651	94-75-7	2,4-D	Acetic acid, (2,4-dichlorophenoxy)-

 

ug/l is micrograms per liter

It is the greece letter μ not u.

μ = mykro or micro

Thank you all. I got my answer.