Bioaerosol emissions arising during application of municipal solid-waste compost |
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Authors: | Mahnaz Nikaeen Maryam Hatamzadeh Akbar Hasanzadeh Ebrahim Sahami Iraj Joodan |
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Institution: | (1) Department of Environmental Health Engineering, Faculty of Health, Isfahan University of Medical Sciences, Isfahan, Iran |
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Abstract: | Although application of composted municipal waste has its benefits, there are also concerns about a range of adverse effects.
Bioaerosol emissions are one cause of concern because of related health problems. To assess the concentration of bioaerosols
emitted during application of compost, fungi and bacteria were collected using an Andersen biosampler. Temperature and relative
humidity were also recorded at each location. Total bacterial concentrations averaged 2,887 cfu/m3 for background samples and 6,727 cfu/m3 for compost-application samples, which constitutes a significant difference. The mean concentration of fungi during application
of compost was three times greater than the background, but the difference was not significant. Concentrations of total bacteria
in compost-application samples decreased significantly with increasing humidity. These results indicated that bioaerosol emissions
as a result of application of compost could increase levels of exposure to bacteria and pose a potential health risk for exposed
individuals. |
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Keywords: | Compost Municipal solid waste Bioaerosol Fungi Bacteria |
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