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. 2021 Sep 13;66(Suppl 1):i156–i171. doi: 10.1093/annweh/wxab066

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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 2. — Days for which THC and VOC measurements were available for 13 ROV vessels and 17 MVs. The figure shows days for which only THC personal samples were available (the light squares), days when both VOC and THC measurements were available and used in the regression analysis (darker squares), and days when only VOC measurements were available for the VOC-derived “THC” TWA estimates (darkest squares).