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Abstract. Researchers have assumed that people generally strive toward authenticity, yet have also argued that authenticity may often be impeded by social constraints. Against this backdrop, it is unclear whether people feel authentic or inauthentic more often in everyday life. To address this question, we examined the retrospective frequency of these feelings. As researchers have conceptualized authenticity and inauthenticity in various ways, we also tested for generalization of the results across different conceptualizations. Our results indicate that authenticity occurs more often than inauthenticity in everyday life. While the results largely generalized across different conceptualizations of authenticity and inauthenticity, there was nonetheless some variation. Future research, therefore, should take different conceptualizations of authenticity and inauthenticity more into account.

Although the exposure assessment of chemicals of emerging concern (CECs) has taken a decisive step forward through advances in (bio)informatics, statistics, and the development of highly sophisticated analytical instruments, the lack of standardisation and harmonisation of analytical workflows and method performance assessment for suspect and non-target screening hampers the interpretation of results, their comparability and thus, its transmission to policymakers. To date, unlike in other research fields such as forensics or food analysis, there is a lack of guidelines for non-target analysis in human risk assessment and quality assurance and quality control (QA/QC) protocols. Moreover, the majority of efforts have been focused on the development and implementation of QA/QC actions for data acquisition, data analysis and mining, largely neglecting the sample preparation necessary for determination of CECs by suspect and non-target screening methods. In this article, we propose a set of QA/QC measures that covers sampling, sample preparation and data acquisition, as an aspect of work conducted within the European Biomonitoring for Europe initiative (HBM4EU). These measures include the use of standardised terminology and the implementation of dedicated QA/QC actions in each stage of the analytical process. Moreover, a framework for the analytical performance assessment has been developed for the first time for the identification of CECs in human samples by suspect and non-target approaches. Adoption of the actions proposed here for the identification of CECs in human matrices can significantly improve the comparability of reported results and contribute to the (challenging) Exposome research field. ; The authors thank the European Union's Horizon 2020 research and innovation programme HBM4EU (Grant Agreement No. 733032) for its financial support. Dr. N. Caballero-Casero acknowledges postdoctoral fellowship from the University of Antwerp. Drs. P. Vervliet acknowledges funding through a Research Foundation Flanders project (G089016N). Drs. L. Belova acknowledges funding through a Research Foundation Flanders project (11G1821N). This work was also supported by the Exposome Centre of Excellence of the University of Antwerp (BOF grant, Antigoon database number 41222). Dr. E.J. Price acknowledges support from the Czech Operational Programme Research, Development and Education – Project Postdoc@MUNI (No. CZ.02.2.69/0.0/0.0/16_027/0008360). ; Sí

Although the exposure assessment of chemicals of emerging concern (CECs) has taken a decisive step forward through advances in (bio)informatics, statistics, and the development of highly sophisticated analytical instruments, the lack of standardisation and harmonisation of analytical workflows and method performance assessment for suspect and non-target screening hampers the interpretation of results, their comparability and thus, its transmission to policymakers. To date, unlike in other research fields such as forensics or food analysis, there is a lack of guidelines for non-target analysis in human risk assessment and quality assurance and quality control (QA/QC) protocols. Moreover, the majority of efforts have been focused on the development and implementation of QA/QC actions for data acquisition, data analysis and mining, largely neglecting the sample preparation necessary for determination of CECs by suspect and non-target screening methods. In this article, we propose a set of QA/QC measures that covers sampling, sample preparation and data acquisition, as an aspect of work conducted within the European Biomonitoring for Europe initiative (HBM4EU). These measures include the use of standardised terminology and the implementation of dedicated QA/QC actions in each stage of the analytical process. Moreover, a framework for the analytical performance assessment has been developed for the first time for the identification of CECs in human samples by suspect and non-target approaches. Adoption of the actions proposed here for the identification of CECs in human matrices can significantly improve the comparability of reported results and contribute to the (challenging) Exposome research field. ; The authors thank the European Union's Horizon 2020 research and innovation programme HBM4EU (Grant Agreement No. 733032) for its financial support. Dr. N. Caballero-Casero acknowledges postdoctoral fellowship from the University of Antwerp. Drs. P. Vervliet acknowledges funding through a Research Foundation Flanders ...