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De invloed van verontreinigingen in de omgevingslucht op de binnenluchtkwaliteit... deel 1: blootstelling van kinderen
Boek - Rapport
Ondertitel:Verslag van werkpakket 3: interpretatie en beleidsaanbevelingen
This report is the third and final part of the study “The Influence of Contaminants in Ambient Air on the Indoor Air Quality, part 1: Exposure of Children”.
In this report, data of the measuring campaign (workpackage 2) in 50 dwellings is used to develop an exposure assessment of children. In this work package, a stepwise approach was used to convert air concentrations of gases and particulate matter (measured in WP 2) in different micro-environments in which typically Flemish children spend their time into children’s exposure to air pollutants.
Firstly, indoor and outdoor concentrations are evaluated relative to the type of microenvironment type (1.1.1 and 1.1.2). Concentrations in dwellings, schools and other microenvironments are summarized. Differences between micro-environments in dwellings (bedroom versus living room) and differences between front door and backdoor concentrations are assessed. It is also tested whether traffic density near dwellings affects indoor and outdoor concentrations (1.1.3). Finally, correlations between indoor occupant activities or product use indoors and these indoor concentrations are calculated (1.1.4).
To evaluate the contribution of indoor and outdoor sources of air pollution separately, the measured indoor concentrations are broken down into a fraction that is related to outdoor air pollution that has infiltrated indoors, and a fraction that is related to indoor sources (1.1.5). The latter indoor concentrations were then again analysed for relationships with indoor activities, product use, building materials, …(1.1.6)
In a second part (1.2), children’s exposure to air pollutants is determined for different age categories and for different locations, with traffic density as the important indicator for location specific differences in air pollution. Typical exposure scenarios were set up using the median concentrations in different micro-environments and typical time activity patterns. The children’s exposure to air pollutants was allocated to either the outdoor sources and the indoor sources.
Finally, in addition to the typical (median) exposure, the distribution of exposure was also assessed using the range of concentrations across the examined micro-environments. Such distributions are in particular useful to estimate the exposure of high exposed children.
Exposure data were also converted into pollutant doses to children.
In this report, data of the measuring campaign (workpackage 2) in 50 dwellings is used to develop an exposure assessment of children. In this work package, a stepwise approach was used to convert air concentrations of gases and particulate matter (measured in WP 2) in different micro-environments in which typically Flemish children spend their time into children’s exposure to air pollutants.
Firstly, indoor and outdoor concentrations are evaluated relative to the type of microenvironment type (1.1.1 and 1.1.2). Concentrations in dwellings, schools and other microenvironments are summarized. Differences between micro-environments in dwellings (bedroom versus living room) and differences between front door and backdoor concentrations are assessed. It is also tested whether traffic density near dwellings affects indoor and outdoor concentrations (1.1.3). Finally, correlations between indoor occupant activities or product use indoors and these indoor concentrations are calculated (1.1.4).
To evaluate the contribution of indoor and outdoor sources of air pollution separately, the measured indoor concentrations are broken down into a fraction that is related to outdoor air pollution that has infiltrated indoors, and a fraction that is related to indoor sources (1.1.5). The latter indoor concentrations were then again analysed for relationships with indoor activities, product use, building materials, …(1.1.6)
In a second part (1.2), children’s exposure to air pollutants is determined for different age categories and for different locations, with traffic density as the important indicator for location specific differences in air pollution. Typical exposure scenarios were set up using the median concentrations in different micro-environments and typical time activity patterns. The children’s exposure to air pollutants was allocated to either the outdoor sources and the indoor sources.
Finally, in addition to the typical (median) exposure, the distribution of exposure was also assessed using the range of concentrations across the examined micro-environments. Such distributions are in particular useful to estimate the exposure of high exposed children.
Exposure data were also converted into pollutant doses to children.
Aantal pagina's: 69
Jaar van publicatie:2019
Toegankelijkheid:Open