Measuring workplace concentrations is it necessary to differentiate between values below the LOQ (l.o. quantification) and the LOD (determination)?

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Jai Ghosh

You are asking for a committed answer as a thumb rule. Well, it will depend on the situation and the investigator whether or not to regard nondetects as zero. It can not be generalised for all situations.

Mohammed Messaoudi

Good question and Informative answers thank you

Grzegorz Boczkaj

Dorothea,

Generally, you should report it as