Cargando…
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...
Autores principales: | , , , , , , , , , |
---|---|
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 |
_version_ | 1782462683614806016 |
---|---|
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. |
format | Online Article Text |
id | pubmed-5080310 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT degiglioosvalda microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT barbutigiovanna microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT trerotolipaolo microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT brigidasilvia microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT calabreseangelantonio microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT divittoriogiuseppe microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT loverograzia microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT caggianogiuseppina microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT uricchiovitofelice microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly AT montagnamariateresa microbiologicalandhydrogeologicalassessmentofgroundwaterinsouthernitaly |