Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.

The paper discusses the analysis of the effect of using sewage sludge for fertilization on the level of soil and groundwater contamination with drug-resistant bacteria. Other sanitary contaminants in these environments were also analysed. Composted sewage sludge was introduced into the sandy soil ov...

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Main Authors: Ewa Stańczyk-Mazanek, Longina Stępniak
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0256936
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author Ewa Stańczyk-Mazanek
Longina Stępniak
author_facet Ewa Stańczyk-Mazanek
Longina Stępniak
author_sort Ewa Stańczyk-Mazanek
collection DOAJ
description The paper discusses the analysis of the effect of using sewage sludge for fertilization on the level of soil and groundwater contamination with drug-resistant bacteria. Other sanitary contaminants in these environments were also analysed. Composted sewage sludge was introduced into the sandy soil over a period of 6 months. The examinations were conducted under conditions of a lysimetric experiment with the possibility of collecting soil leachates (in natural conditions). The following doses of sewage sludge were used: 0, 10, 20, 30 and 40 t/ha calculated per experimental object containing 10 kg of sandy soil. The research were carried out within the time frame of one year. Dactylis glomerata grass was grown on the fertilized soils. In soils and leachates from soils (which may have polluted groundwater) collected from fertilized experimental objects, the sanitary condition and quantity of drug-resistant bacteria (mainly from the families Enterobacteriaceae and Enterococcus) were analysed one year after fertilization. Their drug resistance to selected antibiotics was also analysed based on current recommendations. The study showed that fertilization with sewage sludge (even after stabilization and hygienization) results in contamination of soil and infiltrating waters with many species of drug-resistant pathogenic bacteria. The lowest level of contamination of soil and water environment was found after the application of sewage sludge at a dose of 10 t/ha. The isolated drug-resistant strains of intestinal bacteria were less sensitive to older generations of antibiotics including cefazolin, ampicillin, and co-amoxiclav.
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spelling doaj.art-83fe0c32f65f46a2be78758e4137649f2022-12-21T19:48:33ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-011612e025693610.1371/journal.pone.0256936Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.Ewa Stańczyk-MazanekLongina StępniakThe paper discusses the analysis of the effect of using sewage sludge for fertilization on the level of soil and groundwater contamination with drug-resistant bacteria. Other sanitary contaminants in these environments were also analysed. Composted sewage sludge was introduced into the sandy soil over a period of 6 months. The examinations were conducted under conditions of a lysimetric experiment with the possibility of collecting soil leachates (in natural conditions). The following doses of sewage sludge were used: 0, 10, 20, 30 and 40 t/ha calculated per experimental object containing 10 kg of sandy soil. The research were carried out within the time frame of one year. Dactylis glomerata grass was grown on the fertilized soils. In soils and leachates from soils (which may have polluted groundwater) collected from fertilized experimental objects, the sanitary condition and quantity of drug-resistant bacteria (mainly from the families Enterobacteriaceae and Enterococcus) were analysed one year after fertilization. Their drug resistance to selected antibiotics was also analysed based on current recommendations. The study showed that fertilization with sewage sludge (even after stabilization and hygienization) results in contamination of soil and infiltrating waters with many species of drug-resistant pathogenic bacteria. The lowest level of contamination of soil and water environment was found after the application of sewage sludge at a dose of 10 t/ha. The isolated drug-resistant strains of intestinal bacteria were less sensitive to older generations of antibiotics including cefazolin, ampicillin, and co-amoxiclav.https://doi.org/10.1371/journal.pone.0256936
spellingShingle Ewa Stańczyk-Mazanek
Longina Stępniak
Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.
PLoS ONE
title Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.
title_full Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.
title_fullStr Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.
title_full_unstemmed Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.
title_short Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge.
title_sort analysis of migration of pathogenic drug resistant bacteria to soils and groundwater after fertilization with sewage sludge
url https://doi.org/10.1371/journal.pone.0256936
work_keys_str_mv AT ewastanczykmazanek analysisofmigrationofpathogenicdrugresistantbacteriatosoilsandgroundwaterafterfertilizationwithsewagesludge
AT longinastepniak analysisofmigrationofpathogenicdrugresistantbacteriatosoilsandgroundwaterafterfertilizationwithsewagesludge