1. 'All chemical substances are harmful.' public appraisal of uncertain risks of food additives and contaminants
- Author
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Tom Jansen, Irene van Kamp, Liesbeth Claassen, Danielle R. M. Timmermans, Public and occupational health, APH - Quality of Care, EMGO - Quality of care, and APH - Personalized Medicine
- Subjects
Male ,Risk perception ,Food Safety ,Culture ,Toxicology ,Hydrocarbons, Aromatic ,Risk communication ,Surveys and Questionnaires ,Risk appraisal ,media_common ,0303 health sciences ,Principal Component Analysis ,Food Packaging ,Uncertainty ,04 agricultural and veterinary sciences ,General Medicine ,Middle Aged ,Silicon Dioxide ,040401 food science ,Hazard ,Female ,Adult ,Chemical substances in food ,food.ingredient ,Adolescent ,Food hazard ,media_common.quotation_subject ,Food Contamination ,Risk Assessment ,03 medical and health sciences ,Young Adult ,0404 agricultural biotechnology ,food ,Phenols ,Environmental health ,Humans ,Health risk ,Benzhydryl Compounds ,030304 developmental biology ,Aged ,Health risk assessment ,business.industry ,Food additive ,Food safety ,Attitude ,Scientific uncertainty ,Public Opinion ,Food Additives ,Business ,Food Science - Abstract
In toxicological health risk assessment, epistemic uncertainties (e.g. about a chemical's intrinsic properties or toxicity) often remain, preventing definitive statements about whether a chemical constitues a risk. In this study, we analyzed public appraisals of uncertain risks of food additives and contaminants. We identified three major characteristics of public appraisal. First, hazard appraisals differed consistently from risk appraisals: respondents were less disturbed by a possible health risk than by the mere presence of the chemical substance in food. Second, while a majority understood that exposure determines whether a chemical constitutes a risk, many respondents thought that all chemicals are equally harmful. This suggests a mismatch between beliefs about exposure and beliefs about toxicity. Finally, the higher people valued certainty about food safety and the less they considered uncertainty about a risk acceptable, the more severe they appraised the presence of the chemical substance in food. This suggests that a mismatch between the level of uncertainty that people expect about food safety and the actual level of scientific uncertainty, affects how people evaluate the presence of chemical substances in food. Following the findings, implications for risk communication are discussed.
- Published
- 2019