KaydedilenlerDerginizi ekleyin

Dergiler / Atmospheric Pollution Research / 2019 / Cilt: 10 - Sayı: 6

Emission level, particle size and exposure risks of airborne bacteria from the oxidation ditch for seven months observation

Kaixiong YANG
Lin Lİ
Yanjie WANG
Song XUE
Yunping HAN
Junxin LİU
Sayfa
1803–1811
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

The airborne microorganisms disseminatedby the RDAs should be reduced.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:The emission of airborne bacteria and their human exposure risks were studied in a wastewater treatment plant(WWTP).
📊
Temel Bulgular & Veri:The highest concentration was observed near the RDAs(835 ± 91 CFU/m3 to 8916 ± 155 CFU/m3) during each sampling process, with the concentration decreasingby 76.70% and 79.91% as sampling distance and height increased, respectively.
💡
Sonuç & Katkı:The airborne microorganisms disseminatedby the RDAs should be reduced.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Özet

The emission of airborne bacteria and their human exposure risks were studied in a wastewater treatment plant(WWTP). Air samples were collected by an Andersen Cascade Impactor at different distances from the rotor discaerators (RDAs) equipped in the oxidation ditch in seven months. Spatial and seasonal variations in the concentrationsof airborne bacteria emissions were detected. The highest concentration was observed near the RDAs(835 ± 91 CFU/m3 to 8916 ± 155 CFU/m3) during each sampling process, with the concentration decreasingby 76.70% and 79.91% as sampling distance and height increased, respectively. Most of the airborne bacteriawere coarse particles that exceeded 4.7 μm in size. The dominant bacteria were Bacillus sp., Lysinibacillus sp., andSphingomonas sp. The spatial distribution of airborne bacteria visualized by contour maps indicated potentialhealth impact of wastewater treatment processes on biological pollution within the WWTP and surroundingareas. The deposition fraction of airborne bacteria that could penetrate the lung through inhalation were used toassess the human exposure risks. Hazard quotients ranged from 1.66×10−2 to 1.06. There were cumulativerisks to on-site workers and nearby residents posed by chronic exposure. The airborne microorganisms disseminatedby the RDAs should be reduced.

🔖

Bu Makaleye Atıf Yap

YANG, K., Lİ, L., WANG, Y., XUE, S., HAN, Y., LİU, J. (2019). Emission level, particle size and exposure risks of airborne bacteria from the oxidation ditch for seven months observation. Atmospheric Pollution Research, Cilt: 10 - Sayı: 6, 1803–1811. https://ajindex.com/articles/351463

Kaynakça (10)

  1. Andersen, A.A., 1958. New sampler for the collection, sizing and enumeration of viable airborne particles. J. Bacteriol. 76, 471–484.
  2. Awad, A.H., El Gendy, S.A., 2014. Evaluation of airborne Actinomycetes at waste application facilities. Atmos. Pollut. Res. 5, 1–7. https://doi.org/10.5094/APR.2014.001.
  3. Braak, E., Albasi, C., Anne-Archard, D., Schetrite, S., Alliet, M., 2017. Impact of aeration on mixed liquor in submerged-membrane bioreactors for wastewater treatment. Chem. Eng. Technol. 40, 1453–1465. https://doi.org/10.1002/ceat.201600470.
  4. Breza-Boruta, B., 2016. The assessment of airborne bacterial and fungal contamination emitted by a municipal landfill site in Northern Poland. Atmos. Pollut. Res. 7, 1043–1052. https://doi.org/10.1016/j.apr.2016.06.011.
  5. Cyprowski, M., Ławniczek-Wałczyk, A., Gołofit-Szymczak, M., Frączek, K., Kozdrój, J., Górny, R.L., 2019. Bacterial aerosols in a municipal landfill environment. Sci. Total Environ. 660, 288–296. https://doi.org/10.1016/j.scitotenv.2018.12.356.
  6. Davin-Regli, A., Pages, J.M., 2015. Enterobacter aerogenes and Enterobacter cloacae; versatile bacterial pathogens confronting antibiotic treatment. Front. Microbiol. 6. https://doi.org/10.3389/fmicb.2015.00392.
  7. Demarta, A., Tonolla, M., Caminada, A., Beretta, M., Peduzzi, R., 2000. Epidemiological relationships between Aeromonas strains isolated from symptomatic children and household environments as determined by ribotyping. Eur. J. Epidemiol. 16, 447–453. https://doi.org/10.1023/A:1007675424848.
  8. Ding, W., Li, L., Han, Y., Liu, J., Liu, J., 2016. Site-related and seasonal variation of bioaerosol emission in an indoor wastewater treatment station: level, characteristics of particle size, and microbial structure. Aerobiologia 32, 211–224. https://doi.org/ 10.1007/s10453-015-9391-5.
  9. Fathi, S., Hajizadeh, Y., Nikaeen, M., Gorbani, M., 2017. Assessment of microbial aerosol emissions in an urban wastewater treatment plant operated with activated sludge process. Aerobiologia 33, 507–515. https://doi.org/10.1007/s10453-017-9486-2.
  10. Fröhlich-Nowoisky, J., Kampf, C.J., Weber, B., Huffman, J.A., Pöhlker, C., Andreae, M.O., Lang-Yona, N., Burrows, S.M., Gunthe, S.S., Elbert, W., Su, H., Hoor, P., Thines, E., Hoffmann, T., Després, V.R., Pöschl, U., 2016. Bioaerosols in the Earth system: climate, health, and ecosystem interactions. Atmos. Res. 182, 346–376. https://doi.org/ 10.1016/j.atmosres.2016.07.018. Gangamma, S., Patil, R.S., Mukherji, S., 2011. Characterization and pro