Sensitivity of predicted bioaerosol exposure from open windrow composting facilities to ADMS dispersion model parameters

TitleSensitivity of predicted bioaerosol exposure from open windrow composting facilities to ADMS dispersion model parameters
Publication TypeJournal Article
Year of Publication2016
AuthorsDouglas P., Tyrrel S.F, Kinnersley R.P, Whelan M., Longhurst P.J, Walsh K., Pollard S.JT, Drew G.H
JournalJ Environ ManageJournal of Environmental ManagementJournal of Environmental Management
Volume184
Pagination448-455
Date PublishedDec 15
ISBN Number0301-4797
Accession Number27743831
Keywords*Adms, *Bioaerosol, *Compost, *Dispersion modelling, *Models, Theoretical, *Sensitivity analysis, *Soil, Aerosols, Air Pollutants/*analysis, Humans, Waste Management/*methods
Abstract

Bioaerosols are released in elevated quantities from composting facilities and are associated with negative health effects, although dose-response relationships are not well understood, and require improved exposure classification. Dispersion modelling has great potential to improve exposure classification, but has not yet been extensively used or validated in this context. We present a sensitivity analysis of the ADMS dispersion model specific to input parameter ranges relevant to bioaerosol emissions from open windrow composting. This analysis provides an aid for model calibration by prioritising parameter adjustment and targeting independent parameter estimation. Results showed that predicted exposure was most sensitive to the wet and dry deposition modules and the majority of parameters relating to emission source characteristics, including pollutant emission velocity, source geometry and source height. This research improves understanding of the accuracy of model input data required to provide more reliable exposure predictions.

Short TitleJ Environ ManageJ. Environ. Manage.
Alternate JournalJournal of environmental management