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Biocontained Carcass Composting for Control of Infectious Disease Outbreak in Livestock

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Published on: May 6, 2010

Microbiological consequences of indoor composting.

A Naegele¹, G Reboux^1,2, M Vacheyrou¹

¹UMR/CNRS 6249 Chrono-Environnement, University of Bourgogne - Franche-Comté, Besançon, France.

|August 25, 2015

Summary

Household composting increases microorganisms like Acarus siro near bins over time. However, composting does not significantly impact bioaerosol levels or surface microbes beyond 0.5 meters.

Keywords:

Composting Electrostatic dust collector Indoor air Mites Molds Waste bin

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Area of Science:

Environmental microbiology
Household waste management

Background:

Organic waste recycling is gaining popularity.
Understanding microbial contamination around home composting systems is crucial for public health and environmental safety.

Purpose of the Study:

To assess microbiological contamination in the vicinity of household organic waste bins over a 12-month period.
To investigate the impact of home composting on bioaerosols and settled dust.

Main Methods:

Air, particle, and dust samples collected from 38 composting households and 10 control households over 12 months.
Microbiological analysis using culture and real-time quantitative PCR (qPCR).
Standardized questionnaires gathered data on dwelling characteristics and inhabitant practices.

Main Results:

Genera Penicillium, Aspergillus, Cladosporium, and Streptomyces were frequently isolated.
Significant increase in Acarus siro detected in bioaerosol samples near organic waste bins (P=0.001).
Sedimented dust showed increased concentrations of A. siro, Wallemia sebi, Aspergillus versicolor, and Cladosporium sphaerospermum after 12 months.

Conclusions:

Home composting promotes microorganism development around waste bins over time.
Microbial levels beyond 0.5 meters from the organic waste bin were not significantly affected by composting.