What could cause nitrate results to be about four times higher or lower than they should be?

Document ID

Document ID TE519

Published Date

Published Date 04/02/2019
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Question
What could cause nitrate results to be about four times higher or lower than they should be?
Summary
Nitrate results about four times low or high
Answer
If nitrate results are about four times higher or lower than they should be, the chemical form of nitrate that is being reported should be verified. Please see the related article: What is the factor to convert from NO3-N and NO3?.

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