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| Characteristics of antibiotic-resistant bioaerosols during composting |
| Received:January 04, 2019 |
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| KeyWord:composting;bioaerosol;tetracycline-resistant bacteria;erythromycin-resistant bacteria;size distribution |
| Author Name | Affiliation | E-mail | | CHEN Mo | College of Biological Sciences, China Agricultural University, Beijing 100193, China
Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | GAO Min | Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | gm_baafs@126.com | | SONG Yuan | College of Biological Sciences, China Agricultural University, Beijing 100193, China | | | CHENG Shou-tao | Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | GAO Hao-ze | Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | WANG Xu-ming | Beijing Agro-Biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | |
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| Abstract: |
| In this study, an FA-I impact sampler was used to collect bioaerosols emitted from composting facilities and the surrounding environment. We detected the concentration and size distribution of antibiotic-resistant bioaerosols, and analyzed their variation with transmission distance. The results indicated that the concentration of bioaerosols in the composting area reached 2.65×104 CFU·m-3. The concentrations of tetracycline-resistant and erythromycin-resistant bioaerosols were 9.54×103 CFU·m-3 and 7.39×103 CFU·m-3, respectively. The corresponding ratio of the two antibiotic-resistant bioaerosols accounted for 36.44% and 40.20% of the total bioaerosols, respectively. This ratio decreased with the emitting distance. Based on the results of aerodynamic size, the two antibiotic-resistant bioaerosols would be deposited in the anterior nasal region in the human body. The results of this study provide reference data for evaluating the health risks and environmental pollution of bioaerosols during composting. |
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