Escherichia coli in marine water: Comparison of methods for the assessment of recreational bathing water samples.
Mar Pollut Bull
; 113(1-2): 438-443, 2016 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-27771099
ABSTRACT
Bathing Water Directive (2006/7/EC) specifies two reference methods for Escherichia coli detection ISO 9308-1 and 9308-3. The revised ISO 9308-1 is recommended only for waters with a low bacterial background flora. Considering the extended time needed for analysis and, generally, the lack of experience in using ISO 9308-3 in the Mediterranean, the suitability of ISO 9308-1 for the examination of E. coli in bathing water was evaluated. The present study was aimed at a comparison of data obtained by the reference method in seawater samples (110 beaches, N=477) with data received from six alternative methods. Results show that recently used TSA/TBA method may overestimate E. coli numbers in marine waters. The temperature modified ISO 9308-1 (44°C) did not significantly alter the results, but outperformed the antibiotic supplemented agar at reducing non-E. coli bacteria on the plates, allowing the use of the respective method for monitoring coastal water.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Recreação
/
Água do Mar
/
Praias
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Microbiologia da Água
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Monitoramento Ambiental
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Escherichia coli
País/Região como assunto:
Europa
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article