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Surrogate calibration in environmental air monitoring? No thanks

This HND piece digs into the matter of calibrating environmental air monitoring instruments. We detail why it's needed, along with the common calibration modalities. After that, we segue into the faulty notion of surrogate calibration.

Unfortunately, surrogate calibration has gained some popularity because it is...expedient. When it's used, it is inevitably because doing the calibration properly is a bit more difficult than the practitioners would like. Trouble is, surrogate calibration can introduce significant error into these measurements.

Read the complete article.

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