Preliminary Characterisation and Proposal of Microbiological Quality Standard of Sand Beaches

1993 ◽  
Vol 27 (3-4) ◽  
pp. 453-456 ◽  
Author(s):  
B. Mendes ◽  
M. J. Nascimento ◽  
J. S. Oliveira
Keyword(s):  
Environmental Quality ◽  
Microbiological Quality ◽  
Quality Standard ◽  
Coastal Areas ◽  
Indirect Contact ◽  
Quality Of Water ◽  
Microbiological Control ◽  
Contact Data ◽  
Epidemiological Information

The control of environmental quality of literal areas in EEC is mainly concerned with the microbiological quality of water (direct and indirect contact). Data concerning the microbiological quality of sand in different beaches of Portugal (three main coastal areas) are presented. Based on those results, data available In the literature and epidemiological information, a preliminary guideline criterion for the microbiological control of sand is proposed, to complete criteria used in “Blue Flag” distinction, accorded to high environmental quality beaches.

scholarly journals Are the defined substrate-based methods adequate to determine the microbiological quality of natural recreational waters?

2009 ◽  
Vol 8 (1) ◽  
pp. 11-19 ◽  
Author(s):  
Marta Sofia Valente ◽  
Paulo Pedro ◽  
M. Carmen Alonso ◽  
Juan J. Borrego ◽  
Lídia Dionísio
Keyword(s):  
Standard Method ◽  
Membrane Filtration ◽  
Microbiological Quality ◽  
Recreational Waters ◽  
Total Coliforms ◽  
E Coli ◽  
Quality Of Water ◽  
Routine Monitoring ◽  
Rapid Tests

Monitoring the microbiological quality of water used for recreational activities is very important to human public health. Although the sanitary quality of recreational marine waters could be evaluated by standard methods, they are time-consuming and need confirmation. For these reasons, faster and more sensitive methods, such as the defined substrate-based technology, have been developed. In the present work, we have compared the standard method of membrane filtration using Tergitol-TTC agar for total coliforms and Escherichia coli, and Slanetz and Bartley agar for enterococci, and the IDEXX defined substrate technology for these faecal pollution indicators to determine the microbiological quality of natural recreational waters. ISO 17994:2004 standard was used to compare these methods. The IDEXX for total coliforms and E. coli, Colilert®, showed higher values than those obtained by the standard method. Enterolert® test, for the enumeration of enterococci, showed lower values when compared with the standard method. It may be concluded that more studies to evaluate the precision and accuracy of the rapid tests are required in order to apply them for routine monitoring of marine and freshwater recreational bathing areas. The main advantages of these methods are that they are more specific, feasible and simpler than the standard methodology.

scholarly journals The pursuit of good microbiological conditions in domestic softeners: a new improvement

2020 ◽  
Vol 18 (2) ◽  
pp. 200-206
Author(s):  
L. Bolelli ◽  
Elida Nora Ferri ◽  
Stefano Sangiorgi ◽  
Giuseppe Novelli ◽  
Stefano Girotti
Keyword(s):  
Pathogenic Bacteria ◽  
Microbiological Quality ◽  
Global Network ◽  
Plate Count ◽  
Bacteria Growth ◽  
Warm Environment ◽  
Quality Of Water ◽  
Softened Water ◽  
Generous Support

Abstract Effective resin disinfection is mandatory to ensure the microbiological quality of water treated by domestic softeners. The wet and sometimes warm environment inside the softener is ideal for bacteria growth. Our research was focused on the evaluation of the microbial quality of water from softeners sanitized by chlorine solutions or by electrolytic systems. We employed the heterotrophic plate count and specific tests to monitor the presence of opportunistic and pathogenic bacteria (Pseudomonas aeruginosa, Escherichia coli, enterococci, and coliforms). Completely new devices were equipped with a commercially available electrolytic system or with a newly patented one or sanitized by automatic or manual addition of chlorine solutions. In all cases, the contamination was reduced, not completely avoided. In particular, the patented electrolytic system significantly reduced bacterial proliferation in strongly contaminated devices. Our data confirm the difficulties encountered to solve the problem of microbiological quality of softened water and offer encouraging information on new possible solutions. This article has been made Open Access thanks to the generous support of a global network of libraries as part of the Knowledge Unlatched Select initiative.

scholarly journals Physicochemical and microbiological quality of water from a pilot domestic rainwater harvesting facility in Ireland

2010 ◽  
Vol 25 (4) ◽  
pp. 489-494 ◽  
Author(s):  
S. O'Hogain ◽  
L. McCarton ◽  
N. McIntyre ◽  
J. Pender ◽  
A. Reid
Keyword(s):  
Rainwater Harvesting ◽  
Microbiological Quality ◽  
Quality Of Water

scholarly journals The Quality of Water of the Downstream of the Siak River, Riau Province, Based on Tidal Condition

Omni-Akuatika ◽  
2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Yuliati Yuliati ◽  
Etty Riani ◽  
Bambang Pramudya N. Pramudya N. ◽  
Achmad Fahrudin
Keyword(s):  
Government Regulation ◽  
High Tide ◽  
Quality Standard ◽  
Total Coliform ◽  
Water Effect ◽  
Black Water ◽  
Quality Of Water ◽  
Tidal Condition ◽  
The Government

The quality of water in a river is affected by its natural condition and pollutant input originated from activities conducted around the river. In the Siak river, however, the black water effect influences thedistribution of the pollutant in general. To understand the quality of water in the black water affected by an area, a study was conducted from December 2015 to July 2016. The water was sampled during lowand high tides, in 8 sampling sites that were distributed along the river, from the mouth of the river in Siak Sri Indrapura Regency to upstream in Palas Village, Kampar Regency (around 180 km from the mouth ofthe river). The results showed that in the downstream of the Siak river, the quality of water during the low and high tides was worse than the 3rd Class Water Quality Standard issued by the Government Regulation (GR No. 82 / 2001) except for the concentration of nitrate, total coliform, Hg, oil and fat. The BOD was 14-39.2 mg/L (the high tide) and 17-45.6 mg/L (the low tide), COD was 51.76-80.62 mg/L (thehigh tide) and 51.76-69.12 mg/L (the low tide), NH3-N was 0.03-1.09 mg/L (the high tide) and 0.03-0.92 mg/L (the low tide), while the NO2-N was 0.13-0.17 mg/L (the high tide) and 0.13-0.22 mg/L (the low tide). Based on the Storet Index, the water of the downstream in the Siak river during the low and the high tide can be categorized as heavily polluted (score -52 to -70), and it tends to decline during the high tide.

Sign in / Sign up

Export Citation Format

Share Document