Abstract
A modified Gaussian atmospheric dispersion model, Industrial Source Complex (ISCST3), is used to estimate toxic equivalent ground level concentrations (GLC) of dioxins emitted from the Avonmouth municipal waste incinerator (MWI) in Bristol, UK. The sensitivity of the predicted GLC to various vapour and particle partitioning scenarios is reported. Predictions incorporating local terrain and actual emission data are used to estimate the mean incremental intake of dioxin due to MWI operation for local residents, through an existing multi-pathway human exposure model. Results are compared with predictions of incremental intake for a generalised MWI. The mean incremental dioxin intake for a hypothetical maximum exposed individual (HMEI) is shown to be up to 46.5% of the background intake compared to only 1.14% for the generalised MWI scenario. This indicates that the use of local terrain and emission data in MWI dispersion modelling is crucial for health risk assessments associated with human dioxin intake, especially in view of the current debate over the tolerable daily intake for dioxins.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
