Raquel Bertoldo

Laure Malleret

Exposure of young children to settled dust an analysis of parental knowledge and risk perception 1

Context and goals

Ingestion

• How do parents of young children think about dust?

-How they understand settled dust? -How do they perceive risks related to settled dust? -What are the variables explaining cleaning behaviours?

Method

• 1 pre-study (50 parents)

• Study 1 (212 parents)

• Variables -'risk perception' of settled dust -Family dynamics contextual factors largely shape behaviours with potential impacts on young children health

•

  « All types of particles in deposited form, whatever their origin and nature» (German Engineering Association, used by ANSES, 2019) Child: Floor games, hand/mouth object contact, hygiene Chemical analysis of settled dust in schools -playgrounds -Classroom • Genotoxic analysis of the settled dust -Mutagenic potential → by 'ingestion' and 'skin contact' • Exposure to settled dust in the household -Analysis of cleaning behaviour in the household -Risk perception • Preliminary analysis show the presence of PAH in settled dust in schools -both in urban and rural areas -Polycyclic Aromatic Hydrocarbon • Literature shows that -Exterior environment is regarded as 'dirtier' than interior environment -Microorganisms present in dust raise more concerns than other chemical particles [Mackendrick, N. (2014); Crighton et al. (2013)]

•-

  home, exterior, at school • Own kid, other kids -Knowledge about settled dust -Preventive behaviour → cleaning! -Parenting style -Trust in institutions Qualitative pre-study to better target the "types" of householf chores and those that are relevant for this study VARIABLES Aix-Marseille Region What are the first ideas that come to mind when you think about 'settled dust' (fine particles) Fine particles are seen as more dangerous outside the household -in contradiction with toxicological analysis -Impacts are regarded as relatively more important on other peoples' kids• Weight of contextual over cognitive variables in explaining household practices (e.g.Aune, 2007; Bertoldo et al., 2015)