Bacterial aerosols in a municipal landfill environment

Marcin Cyprowski , Anna Ławniczek -Wałczyk , Małgorzata Gołofit-Szymczak , Krzysztof Frączek , Jacek Kozdrój , Rafał L. Górny

Abstract

Landfills collecting substantial amounts of municipal waste support multiplication of different bacteria mainly due to organic matter contained in the deposited materials. With time, they may become active emission sources of these microorganisms. Taking into account both occupational and public health and safety, there is an indisputable necessity to monitor the level of air contamination caused by both bacterial cells and their components (e.g., endotoxins). In this study, the concentrations of total viable bacteria (TVB), and Gram-negative bacteria (GNB), as well as their particle size distributions and concentrations of GNB endotoxins were assessed at various locations within the landfill area. The concentrations of TVB and GNB in the air samples changed depending on the season, location (i.e. active sector versus surroundings) and landfill activity level (i.e. exploitation or standstill periods). Higher abundances of endotoxins were found during the standstill period, and they were significantly correlated with organic dust concentrations. The microbial particle size distribution was associated with the landfill operational state, being predominated by fine below 4.7 μm and coarse fractions above 7.0 μm within the active sector during exploitation and standstill periods, respectively. These results supported by a spatial distribution of bacterial aerosol indicate a clear impact of operated landfill on microbiological air quality within the occupied location and nearby areas. Considering health and safety of landfill workers and neighboring residents, who can be exposed to airborne microbial pollutants, repeated bioaerosol monitoring need to be established. It should facilitate both a special planning within the landfill area and undertaking preventive actions in its near and distant surroundings.
Author Marcin Cyprowski
Marcin Cyprowski,,
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, Anna Ławniczek -Wałczyk
Anna Ławniczek -Wałczyk,,
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, Małgorzata Gołofit-Szymczak
Małgorzata Gołofit-Szymczak,,
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, Krzysztof Frączek (FoAE / DoM)
Krzysztof Frączek,,
- Department of Microbiology
, Jacek Kozdrój
Jacek Kozdrój,,
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, Rafał L. Górny
Rafał L. Górny,,
-
Journal seriesScience of the Total Environment, ISSN 0048-9697, e-ISSN 1879-1026, (N/A 200 pkt)
Issue year2019
Vol660
Pages288-296
Publication size in sheets0.5
Keywords in EnglishMunicipal landfill, Bacterial aerosols, Endotoxins, Size distribution, Spatial analysis
ASJC Classification2304 Environmental Chemistry; 2305 Environmental Engineering; 2310 Pollution; 2311 Waste Management and Disposal
DOIDOI:10.1016/j.scitotenv.2018.12.356
URL https://www.sciencedirect.com/science/article/pii/S0048969718352495?via%3Dihub
Internal identifierWRE/2019/6
Languageen angielski
Score (nominal)200
Score sourcejournalList
Publication indicators WoS Citations = 2; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.849; WoS Impact Factor: 2018 = 5.589 (2) - 2018=5.727 (5)
Citation count*
Additional fields
FinansowanieThis study was financially supported by the National Science Centre, Poland (Grant number N N304 308540).
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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