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Bioaerosol emissions from a suburban yard waste composting facility
D Hryhorczuk1, L Curtis, P Scheff
1Environmental and Occupational Health Sciences, University of Illinois at Chicago, 2121 W. Taylor (M/C 922), Chicago, Illinois 60612, USA. dhryhorc@uic.edu
Annals of Agricultural and Environmental Medicine : AAEM
|December 26, 2001
Summary
Worker exposure to bioaerosols from a suburban yard waste composting facility is higher on-site than off-site. Higher concentrations of bacteria, fungi, and endotoxins were found during active composting, indicating potential health risks for workers.
Area of Science:
- Environmental Science
- Occupational Health
- Microbiology
Background:
- Yard waste composting facilities can emit bioaerosols, potentially impacting worker and community health.
- Assessing airborne microbial and particulate matter concentrations is crucial for understanding exposure risks.
Purpose of the Study:
- To evaluate worker and community exposure to bioaerosols from a suburban yard waste composting facility.
- To compare on-site and off-site bioaerosol concentrations and identify factors influencing exposure.
Main Methods:
- Conducted 288 on- and off-site Andersen samples over 10 days.
- Collected dust and spore samples.
- Analyzed concentrations of total spores, bacteria, endotoxin, and beta-1,3 glucans.
Main Results:
- On-site bioaerosol concentrations (spores, bacteria, endotoxin, beta-1,3 glucans) were significantly higher than off-site.
- Bioaerosol levels increased with site activity and decreased with distance from the compost pile.
- Highest exposures to particulates, endotoxin, and beta-1,3 glucans were recorded by workers' personal samplers.
Conclusions:
- Yard waste composting facilities significantly increase local bioaerosol concentrations.
- Worker exposure, particularly during active composting, poses health risks necessitating respiratory protection.
- Community exposure is also elevated, warranting further investigation into long-term impacts.