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. 2021 Jun 29;66(Suppl 1):i140–i155. doi: 10.1093/annweh/wxab038

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© The Author(s) 2021. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model)

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Figure 1. — Steps to developing the THC:VOC relationship for prediction of THC from VOC direct-reading area measurements. This paper presents Steps 1 and 2. VOC TWA: time weighted average over hours of THC personal sample; Daily TWA: time weighted average over a day.