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PubMed2005

Estimation of diffuse and point source microbial pollution in the ribble catchment discharging to bathing waters in the north west of England.

Achieving compliance with the mandatory standards of the 1976 Bathing Water Directive (76/160/EEC) is required at all U.K. identified bathing waters. In recent years, the Fylde coast has been an area of significant investments in 'point source' control, which have not proven, in isolation, to satisfactorily achieve compliance with the mandatory, let alone the guide, levels of water quality in the Directive. The potential impact of riverine sources of pollution was first confirmed after a study in 1997. The completion of sewerage system enhancements offered the potential for the study of faecal indicator delivery from upstream sources comprising both point sources and diffuse agricultural sources. A research project to define these elements commenced in 2001. Initially, a desk study reported here, estimated the principal infrastructure contributions within the Ribble catchment. A second phase of this investigation has involved acquisition of empirical water quality and hydrological data from the catchment during the 2002 bathing season. These data have been used further to calibrate the 'budgets' and 'delivery' modelling and these data are still being analysed. This paper reports the initial desk study approach to faecal indicator budget estimation using available data from the sewerage infrastructure and catchment sources of faecal indicators.

Bathing Beaches↗
PubMed2005

The impact of bird populations on the microbiological quality of bathing waters.

To ensure optimum quality at Bathing Waters, the control of diffuse sources of bacterial contamination is receiving increasing attention. As part of an initiative to improve the quality of the EU designated bathing waters on the Fylde Coast (North West England), a project was undertaken to quantify the faecal indicator load from birds and assess the significance on water quality. High bird counts are encountered on the Fylde Coast with gulls, feral pigeons and starlings being prominent. The piers at Blackpool make an attractive roost for starlings with numbers peaking at over 30,000 in late summer. Systematic recording of bird numbers and locations was undertaken during 2001/2. Estimates were also made of the daily faecal organism production by the different species. The spatial distribution of faecal organisms from the bird population was statistically linked to synoptic water quality data. This allowed estimates to be made of the contribution from birds to the faecal pollution load at the bathing waters. The work confirmed a statistically significant link between bird populations and water quality with a marked seasonal bias.

Animals↗
PubMed2005

An assessment of the impact of the proposed EU bathing water directive on Irish coastal bathing area compliance.

An assessment of the impact of the new microbial water quality standards of the proposed EU Bathing Water Directive on the classification of designated Irish coastal bathing areas is presented. The new standards are applied retrospectively to the microbial water quality results for the bathing seasons of 1999, 2000 and 2001, and the outcome is compared with that recorded under the present Bathing Water Directive. A Microsoft EXCEL application was developed to generate the retrospective bathing area classifications according to the proposed Directive (Excellent, Good, Poor). It was found that the number of Irish coastal bathing areas not attaining 'Excellent' classification (as would be required at present for the Blue Flag award) was trebled; the number attaining 'Good' classification was increased by about 50%, and the number attracting 'Poor' classification (equivalent to 'Fail' under the present Directive) was increased nine-fold. Some of the shortcomings of the proposed Directive and suggestions for its revision are discussed.

Bathing Beaches↗
PubMed2005

Legal aspects of sea water quality: Turkish and EU directives.

This paper primarily addresses underlying laws and regulations related to protection of the coastal environment and examines their implementation. In this context, Directive 76/160/EEC which is the leading directive on the quality of bathing water and its revision, i.e. Commission Proposal COM (2000) 860 Final, is investigated particularly and criticized on technical and scientific manner; and similar and dissimilar issues between the Community Directives and Turkish Laws are evaluated. The conducted study reveals that although the Turkish legislation in the field of water quality is largely in line with the acquis, further efforts are also needed with respect to implementation in order to achieve full harmonization.

Bathing Beaches↗
PubMed2005

Update on recreational water illnesses.

Swimming is a popular exercise activity in the United States, but swimming pools and other recreational venues may serve as settings for infectious disease transmission. Adopting healthy swimming habits can protect you and your family and prevent disease transmission for everyone.

Bathing Beaches↗
PubMed2005

[Pathogenic properties of free-living amoebae isolated from natural and man-made bathing sites in the province of Western Pomerania].

INTRODUCTION: Pathogenic amoebae belonging to the genus of Acanthamoeba and Naegleria, as well as species such as Balamuthia mandrillaris and Sappinia diploidea cause harmful, life-threatening infections in humans and animals. These amoebae commonly occur in the natural environment. Free-living, pathogenic amoebae have hitherto been detected in water reservoirs near Poznań, Gdańsk, and Lublin. MATERIAL AND METHODS: The present work focused on the occurrence of thermophilic amoebae potentially pathogenic to humans. Natural and man-made bathing sites in the province of Western Pomerania were studied. A total of 299 water samples were collected between 2001 and 2003 from 86 sites (indoor swimming pools, seasonal pools, physiotherapy pool, fountains, lakes, ponds, rivers, lagoons, and coastal waters of the Baltic Sea). Amoebae were isolated at 37 degrees C from 223 samples, of which 34 (15.2%) demonstrated thermophilic properties. Tests using thermophilic isolates were carried out on mice through intranasal inoculation. Pathogenic properties and intensity of infection were determined on the basis of re-isolation of amoebae from agar substrates inoculated with fragments of internal organs. Organs of infected mice were examined histologically. RESULTS: Six isolates exhibited infective properties in mice. Five of them were obtained from two man-made water reservoirs belonging to the recreational complex of the city of Szczecin (AM 17, AM 148, AD 16, AD 148, AD 166). One isolate was from a natural reservoir (JG 172). Amoebae were isolated from the brain, lungs, liver, kidneys, spleen, and heart of the infected animals.

Amoeba↗
PubMed2004

Some biochemical properties of fungi from genera Rhodotorula and Trichosporon isolated from Sulejów Reservoir bath water.

The hydrolytic activity of Rhodotorula and Trichosporon strains isolated from Sulej6w Reservoir water and sediments were studied. Also tolerance of high concentrations of natrium chloride and biogenic compounds was evaluated. Fungi from genera Rhodotorula and Trichosporon showed the activity of 12 and 10 from 19 hydrolases of API Zym test, respectively. Tolerance tests showed high resistance of Rhodotorula glutinis to hypertonic saline solutions and very high resistance of both Rhodotorula and Trichosporon strains to nitrate, ammonium and phosphate compounds. These properties of fungi may influence the distribution and the quantity of fungi in aquatic reservoirs.

Bathing Beaches↗
PubMed2003

Prevalence of potentially pathogenic fungi in the bathing sites of the Sulejów Reservoir.

Progressive degradation of water ecosystems may contribute to the propagation of fungi pathogenic to humans and animals. The aim of this study was a quantitative evaluation and identification of species of potentially pathogenic fungi in the littoral zone of the Sulejów Reservoir used as recreation site. We studied samples of surface water and sediments collected from 6 sampling sites of the reservoir in the years 2000 and 2001. In 2000, fungi were isolated from 82.7% of samples, while in 2001 from as many as 95.4%. There were 28 species representing genera: Candida, Cryptococcus, Geotrichum, Kloeckera, Rhodotorula, Saccharomyces, and Trichosporon. The most common species were Rhodotorula glutinis and Candida guilliermondii. The density of the population of identified species depended on the season and sampling site and ranged from 80 to 328000 cells/dm3 (also uncountable growth). The waters of the Sulejów Reservoir may be a covenient place of anamorphic developmental forms, for the 15 cultured species which can also propagate in humans and other mammals.

Bathing Beaches↗
PubMed1991

[Comparative studies of fresh and seawater for the determination of total coliform and fecal coliform bacteria according to the European Economic Community guideline 76/160 (bathing water) by the use of the most-probable-number method with BRILA-MUG broth and differentiation according to the drinking water ordinance].

During the summer season of 1989 about 222 samples of bathing water (Northsea, Baltic Sea and inland waters) were investigated, i.e. 2 times 1998 dilution tubes (1501 positive) were tested. Results with BRILA-MUG and lactose-bouillon were compared and additional 97 samples were tested with one respectively three colonies by confirmative tests. -- The BRILA-MUG one-tube-test (gas, fluorescence and indol) has as expected larger numbers of total coliforms (GC) and faecal coliforms (FC) in comparison with corresponding numbers for E. coli and coliform bacteria according to German law for drinking water (TrinkwV). -- BRILA-MUG and lactose-bouillon with the same identification mode according to "TrinkwV" has corresponding results concerning E. coli and coliform bacteria. -- Following the identification mode according to "TrinkwV" the total coliforms (GC/gas in BRILA-MUG) depending on the origin proved 60-80% as coliform bacteria. Additional API-tests showed that the other bacteria are coliform bacteria too or bacteria which can be considered as indicators for water pollution. -- Faecal coliforms (FC/fluorescence and indol-positive) depending on the origin proved 70-90% as E. coli, if following the identification mode according to "TrinkwV". Using 3 instead of 1 colony per positive dilution tube for identification the positive results increased approximately by 9%. 15% of negative results with the identification mode according to "TrinkwV" proved as E. coli-positive with identification according to API-system, i.e. the corresponding rate of E. coli-positive tubes will therefore be higher than shown above. The BRILA-MUG one-tube-test in connection with the MPN-method can be used successfully to determine the number of total and faecal coliforms according to the EEC-directive for bathing waters. The test needs only a minimum of material and also a minimum of laboratory staff. Differences between this test and other more extensive tests with several biochemical identification steps are negligible. The work load for bathing water tests would not be justified in this case.

Bathing Beaches↗