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A Controlled Study on the Characterisation of Bioaerosols Emissions from Compost

Nasir, Zaheer Ahmad; Rolph, Catherine; Collins, Samuel; Stevenson, David; Gladding, Toni L.; Hayes, Enda; Williams, Ben; Khera, Shagun; Jackson, Simon; Bennett, Allan; Parks, Simon; Kinnersley, Robert P.; Walsh, Kerry; Pollard, Simon J.T.; Drew, Gillian; Alcega, Sonia Garcia; Coulon, Frederic and Tyrrel, Sean (2018). A Controlled Study on the Characterisation of Bioaerosols Emissions from Compost. Atmosphere, 9(10), article no. 379.

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Bioaerosol emissions arising from biowaste treatment are an issue of public concern. To better characterise the bioaerosols, and to assess a range of measurement methods, we aerosolised green waste compost under controlled conditions. Viable and non-viable Andersen samplers, cyclone samplers and a real time bioaerosol detection system (Spectral Intensity Bioaerosol Sensor (SIBS)) were deployed simultaneously. The number-weighted fraction of fluorescent particles was in the range 22–26% of all particles for low and high emission scenarios. Overall fluorescence spectral profiles seen by the SIBS exhibited several peaks across the 16 wavelength bands from 298 to 735 nm. The size-fractionated endotoxin profile showed most endotoxin resided in the 2.1–9 μm aerodynamic diameter fraction, though up to 27% was found in a finer size fraction. A range of microorganisms were detected through culture, Matrix Assisted Laser Desorption and Ionisation Time of Flight Mass Spectrometry (MALDI-TOF) and quantitative polymerase chain reaction (qPCR), including Legionella pneumophila serogroup 1. These findings contribute to our knowledge of the physico-chemical and biological characteristics of bioaerosols from composting sites, as well as informing future monitoring approaches and data interpretation for bioaerosol measurement.

Item Type: Journal Item
Copyright Holders: 2018 The Authors
ISSN: 2073-4433
Project Funding Details:
Funded Project NameProject IDFunding Body
Detection and Characterisation of Inflammatory Agents Associated with Bioaerosol Emitted from Biowaste and Intensive AgricultureNE/M011763/1NERC (Natural Environment Research Council)
Keywords: bioaerosols; sampling methods; compost; characterisation
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 57379
Depositing User: Toni Gladding
Date Deposited: 30 Oct 2018 14:35
Last Modified: 02 May 2019 09:52
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