The use of disinfection substances in the sanitation and disinfection processes of artificial water used for sports
amenities and swimming pools has recently raised some serious concerns. Recreational Water Illnesses (RWIs)
can put at serious risk the health of bathers and swimmers due to adverse effects caused by the use of disinfection
chemicals, such as chlorine, chloramine, ozone and UV radiation, as well as their by-products. Remarkable documented evidence is available on the impact of Disinfection By-Products (DBPs), such as chloroform and other trihalomethanes, haloacetic acids and chlorophenols, deriving from the oxidation of common organic pollutants
dissolved in raw, drinking, waste and artificial waters. Appropriate countermeasures, aimed at avoiding bathers'
exposures to these chemicals, have been developed and adopted in public and private structures, also through
important scientific contributions and technical provisions issued by the WHO and some national health authorities. On the other hand, it has been demonstrated that high reactive disinfection agents may transform other
undesirable chemicals released by bathers, namely pharmaceuticals, sunscreens and other Pharmaceuticals
and Personal Care Products (PPCPs) into chlorinated and oxidized compounds and nitrosamine precursors. The
first symptoms of potentially adverse health effects on human subjects of these largely unknown by-products
should be adequately taken into consideration and investigated.
The use of disinfection substances in the sanitation and disinfection processes of artificial water used for sportsamenities and swimming pools has recently raised some serious concerns. Recreational Water Illnesses (RWIs)can put at serious risk the health of bathers and swimmers due to adverse effects caused by the use of disinfectionchemicals, such as chlorine, chloramine, ozone and UV radiation, as well as their by-products. Remarkable documented evidence is available on the impact of Disinfection By-Products (DBPs), such as chloroform and other trihalomethanes, haloacetic acids and chlorophenols, deriving from the oxidation of common organic pollutantsdissolved in raw, drinking, waste and artificial waters. Appropriate countermeasures, aimed at avoiding bathers'exposures to these chemicals, have been developed and adopted in public and private structures, also throughimportant scientific contributions and technical provisions issued by the WHO and some national health authorities. On the other hand, it has been demonstrated that high reactive disinfection agents may transform otherundesirable chemicals released by bathers, namely pharmaceuticals, sunscreens and other Pharmaceuticalsand Personal Care Products (PPCPs) into chlorinated and oxidized compounds and nitrosamine precursors. Thefirst symptoms of potentially adverse health effects on human subjects of these largely unknown by-productsshould be adequately taken into consideration and investigated.
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