Microbiological risk assessment of Agios Georgios source supplies in Northwestern Greece based on faecal coliforms determination and sanitary inspection survey
Φόρτωση...
Ημερομηνία
Συγγραφείς
Giannoulis, N.
Maipa, V.
Konstantinou, I.
Albanis, T.
Dimoliatis, I.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Chemosphere
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
The assessment of potential risks from microbiological contamination of drinking water supplies is of greatest concern to human health. The study involves the examination of water samples from Agios Georgios source that supplies the capitals, the major towns and several villages of Arta, Preveza and Lefkada prefectures, in Northwestern Greece. The study includes the sanitary inspection survey of the source and the microbiological examination of water samples on a monthly basis during the period February 1996-June 1999 except of Augusts (n = 38). The microbiological risk assessment (MRA) approach of World Health Organisation (WHO) guidelines was applied to enhance the source protection. The faecal contamination of the source water was quantified using faecal coliforms (FC) as indicator bacteria. Microbiological analyses indicate that of the 38 samples analyzed the FC failure rate (positive samples) was 63.2% according to the limit set by the 98/83 directive of the European Union. The 36.8% of the source water samples was found in conformity with WHO guidelines, 42.1% of low risk, 21.1% of intermediate risk while there was not found samples of high or very high risk. Failure rates displayed a seasonal trend being greater during the winter, decreased during spring and autumn and lower during summer. This observation was explained partially by a significant positive relationship with the rainfall amount (r(Spearman). = 0.890, P = 0.001). The sanitary inspection score was found 5110 during the whole survey period that corresponds to an intermediate risk of source contamination. The color-code classification for FC contamination was found 36.8% A (blue, no risk), 42.1% B (green, low risk) and 21.1% C (yellow, intermediate risk). The previous risks were combined for the assessment of waterborne risk, which was determined as intermediate to high; therefore there is a need for high action priority. The potential remedial actions were also suggested in order to improve the source protection of such supplies. (C) 2004 Elsevier Ltd. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
source, sanitary inspection, risk assessment, faecal coliforms, drinking water, greece, drinking-water, quality, karst, cryptosporidium, contamination, groundwater
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000227375500012
http://ac.els-cdn.com/S0045653504008756/1-s2.0-S0045653504008756-main.pdf?_tid=b9ae88cc185161f48df29bfb8ce3396b&acdnat=1333022840_fd8a2f8bdcf5ad0a7658c5cd14b06bda
http://ac.els-cdn.com/S0045653504008756/1-s2.0-S0045653504008756-main.pdf?_tid=b9ae88cc185161f48df29bfb8ce3396b&acdnat=1333022840_fd8a2f8bdcf5ad0a7658c5cd14b06bda
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας