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Pseudomonas aeruginosa in Swimming Pool Water: Evidences and Perspectives for a New Control Strategy

View Article: PubMed Central - PubMed

ABSTRACT

Pseudomonas aeruginosa is frequently isolated in swimming pool settings. Nine recreational and rehabilitative swimming pools were monitored according to the local legislation. The presence of P. aeruginosa was correlated to chlorine concentration. The ability of the isolates to form a biofilm on plastic materials was also investigated. In 59.5% of the samples, microbial contamination exceeded the threshold values. P. aeruginosa was isolated in 50.8% of these samples. The presence of P. aeruginosa was not correlated with free or total chlorine amount (R2 < 0.1). All the isolates were moderate- to strong-forming biofilm (Optical Density O.D.570 range 0.7–1.2). To control biofilm formation and P. aeruginosa colonization, Quantum FreeBioEnergy© (QFBE, FreeBioEnergy, Brisighella, Italy), has been applied with encouraging preliminary results. It is a new, promising control strategy based on the change of an electromagnetic field which is responsible for the proliferation of some microorganisms involved in biofilm formation, such as P. aeruginosa.

No MeSH data available.


Trends of P. aeruginosa in pool water before and after QFBE installation (June 2014 marked with the black line).
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ijerph-13-00919-f008: Trends of P. aeruginosa in pool water before and after QFBE installation (June 2014 marked with the black line).

Mentions: Figure 5 and Figure 6 show the results of water monitoring in this facility before and after the installation of QFBE. In the first month after equipment installation, it was possible to observe an increase in P. aeruginosa concentration and other microbial parameters, probably due to the release of microorganisms from the detached biofilm. Later, the contamination values decreased progressively until reaching the recommended values. (Figure 7 and Figure 8).


Pseudomonas aeruginosa in Swimming Pool Water: Evidences and Perspectives for a New Control Strategy
Trends of P. aeruginosa in pool water before and after QFBE installation (June 2014 marked with the black line).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5036752&req=5

ijerph-13-00919-f008: Trends of P. aeruginosa in pool water before and after QFBE installation (June 2014 marked with the black line).
Mentions: Figure 5 and Figure 6 show the results of water monitoring in this facility before and after the installation of QFBE. In the first month after equipment installation, it was possible to observe an increase in P. aeruginosa concentration and other microbial parameters, probably due to the release of microorganisms from the detached biofilm. Later, the contamination values decreased progressively until reaching the recommended values. (Figure 7 and Figure 8).

View Article: PubMed Central - PubMed

ABSTRACT

Pseudomonas aeruginosa is frequently isolated in swimming pool settings. Nine recreational and rehabilitative swimming pools were monitored according to the local legislation. The presence of P. aeruginosa was correlated to chlorine concentration. The ability of the isolates to form a biofilm on plastic materials was also investigated. In 59.5% of the samples, microbial contamination exceeded the threshold values. P. aeruginosa was isolated in 50.8% of these samples. The presence of P. aeruginosa was not correlated with free or total chlorine amount (R2 < 0.1). All the isolates were moderate- to strong-forming biofilm (Optical Density O.D.570 range 0.7–1.2). To control biofilm formation and P. aeruginosa colonization, Quantum FreeBioEnergy© (QFBE, FreeBioEnergy, Brisighella, Italy), has been applied with encouraging preliminary results. It is a new, promising control strategy based on the change of an electromagnetic field which is responsible for the proliferation of some microorganisms involved in biofilm formation, such as P. aeruginosa.

No MeSH data available.