Improving bioaerosol exposure assessments 1 - comparative modelling of 2 emissions from different compost ages and activities.

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dc.contributor.author Taha, M. P. M. -
dc.contributor.author Drew, Gillian H. -
dc.contributor.author Tamer Vestlund, Asli -
dc.contributor.author Hewings, G. -
dc.contributor.author Jordinson, G. M. -
dc.contributor.author Longhurst, Philip J. -
dc.contributor.author Pollard, Simon J. T. -
dc.date.accessioned 2012-01-23T23:05:00Z
dc.date.available 2012-01-23T23:05:00Z
dc.date.issued 2007-07-01T00:00:00Z -
dc.identifier.citation M.P.M. Taha, G.H. Drew, A. Tamer, G. Hewings, G.M. Jordinson, P.J. Longhurst and S.J.T Pollard, Improving bioaerosol exposure assessments of composting facilities - Comparative modelling of emissions from different compost ages and processing activities, Atmospheric Environment, Volume 41, Issue 21, July 2007, Pages 4504-4519. -
dc.identifier.issn 0004-6981 -
dc.identifier.uri http://dx.doi.org/10.1016/j.atmosenv.2006.12.056 -
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/1819
dc.description.abstract We present bioaerosol source term concentrations from passive and active composting sources and compare emissions from green waste compost aged 1, 2, 4, 6, 8, 12 and 16 weeks. Results reveal that the age of compost has little effect on the bioaerosol concentrations emitted for passive windrow sources. However emissions from turning compost during the early stages may be higher than during the later stages of the composting process. The bioaerosol emissions from passive sources were in the range of 103–104 cfu m−3, with releases from active sources typically 1-log higher. We propose improvements to current risk assessment methodologies by examining emission rates and the differences between two air dispersion models for the prediction of downwind bioaerosol concentrations at off-site points of exposure. The SCREEN3 model provides a more precautionary estimate of the source depletion curves of bioaerosol emissions in comparison to ADMS 3.3. The results from both models predict that bioaerosol concentrations decrease to below typical background concentrations before 250 m, the distance at which the regulator in England and Wales may require a risk assessment to be comple en_UK
dc.language.iso en_UK -
dc.subject Bioaerosols en_UK
dc.subject Compost en_UK
dc.subject Dispersion modelling en_UK
dc.subject Emission rate en_UK
dc.subject Exposure en_UK
dc.title Improving bioaerosol exposure assessments 1 - comparative modelling of 2 emissions from different compost ages and activities. en_UK
dc.type Article -


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