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Microbiological and hydrogeological assessment of groundwater in southern Italy

This study represents the first investigation of microbiological groundwater pollution as a function of aquifer type and season for the Apulia region of southern Italy. Two hundred and seven wells were randomly selected from those monitored by the Regional Agency for Environmental Protection for eme...

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Autores principales: De Giglio, Osvalda, Barbuti, Giovanna, Trerotoli, Paolo, Brigida, Silvia, Calabrese, Angelantonio, Di Vittorio, Giuseppe, Lovero, Grazia, Caggiano, Giuseppina, Uricchio, Vito Felice, Montagna, Maria Teresa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5080310/
https://www.ncbi.nlm.nih.gov/pubmed/27783346
http://dx.doi.org/10.1007/s10661-016-5655-y
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author De Giglio, Osvalda
Barbuti, Giovanna
Trerotoli, Paolo
Brigida, Silvia
Calabrese, Angelantonio
Di Vittorio, Giuseppe
Lovero, Grazia
Caggiano, Giuseppina
Uricchio, Vito Felice
Montagna, Maria Teresa
author_facet De Giglio, Osvalda
Barbuti, Giovanna
Trerotoli, Paolo
Brigida, Silvia
Calabrese, Angelantonio
Di Vittorio, Giuseppe
Lovero, Grazia
Caggiano, Giuseppina
Uricchio, Vito Felice
Montagna, Maria Teresa
author_sort De Giglio, Osvalda
collection PubMed
description This study represents the first investigation of microbiological groundwater pollution as a function of aquifer type and season for the Apulia region of southern Italy. Two hundred and seven wells were randomly selected from those monitored by the Regional Agency for Environmental Protection for emergency use. Both compulsory (Escherichia coli, Total Coliform, and Enterococci) and optional (Pseudomonas aeruginosa, Salmonella spp., Heterotrophic Plate Count at 37 and 22 °C) microbiological parameters were assessed regularly at these wells. Groundwater from only 18 of the 207 (8.7 %) wells was potable; these all draw from karst-fissured aquifers. The remaining 189 wells draw from karst-fissured (66.1 %) or porous (33.9 %) aquifers. Of these, 82 (43.4 %) tested negative for Salmonella spp. and P. aeruginosa, while 107 (56.6 %) tested positive for P. aeruginosa (75.7 %), Salmonella spp. (10.3 %), or for both Salmonella spp. and P. aeruginosa (14 %). A logistic regression model shows that the probability of potable groundwater depends on both season and aquifer type. Typically, water samples were more likely to be potable in autumn-winter than in spring-summer periods (odds ratio, OR = 2.1; 95 % confidence interval, 95 % CI = 1.6–2.7) and from karst-fissured rather than porous aquifers (OR = 5.8; 95 % CI = 4.4–7.8). Optional parameters only showed a seasonal pattern (OR = 2.6; 95 % CI = 1.7–3.9). Clearly, further investigation of groundwater microbiological aspects should be carried out to identify the risks of fecal contamination and to establish appropriate protection methods, which take into account the hydrogeological and climatic characteristics of this region.
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spelling pubmed-50803102016-11-07 Microbiological and hydrogeological assessment of groundwater in southern Italy De Giglio, Osvalda Barbuti, Giovanna Trerotoli, Paolo Brigida, Silvia Calabrese, Angelantonio Di Vittorio, Giuseppe Lovero, Grazia Caggiano, Giuseppina Uricchio, Vito Felice Montagna, Maria Teresa Environ Monit Assess Article This study represents the first investigation of microbiological groundwater pollution as a function of aquifer type and season for the Apulia region of southern Italy. Two hundred and seven wells were randomly selected from those monitored by the Regional Agency for Environmental Protection for emergency use. Both compulsory (Escherichia coli, Total Coliform, and Enterococci) and optional (Pseudomonas aeruginosa, Salmonella spp., Heterotrophic Plate Count at 37 and 22 °C) microbiological parameters were assessed regularly at these wells. Groundwater from only 18 of the 207 (8.7 %) wells was potable; these all draw from karst-fissured aquifers. The remaining 189 wells draw from karst-fissured (66.1 %) or porous (33.9 %) aquifers. Of these, 82 (43.4 %) tested negative for Salmonella spp. and P. aeruginosa, while 107 (56.6 %) tested positive for P. aeruginosa (75.7 %), Salmonella spp. (10.3 %), or for both Salmonella spp. and P. aeruginosa (14 %). A logistic regression model shows that the probability of potable groundwater depends on both season and aquifer type. Typically, water samples were more likely to be potable in autumn-winter than in spring-summer periods (odds ratio, OR = 2.1; 95 % confidence interval, 95 % CI = 1.6–2.7) and from karst-fissured rather than porous aquifers (OR = 5.8; 95 % CI = 4.4–7.8). Optional parameters only showed a seasonal pattern (OR = 2.6; 95 % CI = 1.7–3.9). Clearly, further investigation of groundwater microbiological aspects should be carried out to identify the risks of fecal contamination and to establish appropriate protection methods, which take into account the hydrogeological and climatic characteristics of this region. Springer International Publishing 2016-10-25 2016 /pmc/articles/PMC5080310/ /pubmed/27783346 http://dx.doi.org/10.1007/s10661-016-5655-y Text en © The Author(s) 2016 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
De Giglio, Osvalda
Barbuti, Giovanna
Trerotoli, Paolo
Brigida, Silvia
Calabrese, Angelantonio
Di Vittorio, Giuseppe
Lovero, Grazia
Caggiano, Giuseppina
Uricchio, Vito Felice
Montagna, Maria Teresa
Microbiological and hydrogeological assessment of groundwater in southern Italy
title Microbiological and hydrogeological assessment of groundwater in southern Italy
title_full Microbiological and hydrogeological assessment of groundwater in southern Italy
title_fullStr Microbiological and hydrogeological assessment of groundwater in southern Italy
title_full_unstemmed Microbiological and hydrogeological assessment of groundwater in southern Italy
title_short Microbiological and hydrogeological assessment of groundwater in southern Italy
title_sort microbiological and hydrogeological assessment of groundwater in southern italy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5080310/
https://www.ncbi.nlm.nih.gov/pubmed/27783346
http://dx.doi.org/10.1007/s10661-016-5655-y
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