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Freeman [soylentnews.org] writes:

https://arstechnica.com/health/2024/12/from-diapers-to-mouths-of-babes-how-splash-pads-sickened-over-10k/ [arstechnica.com]

There's nothing quite like a deep dive into the shallow, vomitous puddles of children's splash pads.
[...]
But the brave souls at the Centers for Disease Control and Prevention have done it, wading into 25 years' worth of records on gastrointestinal outbreaks linked to the wellsprings of fecal pathogens. And they unsurprisingly found enough retch-inducing results to make any modern-day John Snows [britannica.com] want to start removing some water handles.
[...]
In all, the outbreaks led to at least 10,611 illnesses, 152 hospitalizations, and 99 emergency department visits. People, mostly children, were sickened with pathogens including Cryptosporidium [arstechnica.com], Camplyobacter jejuni, Giardia duodenalis, Salmonella, Shigella, and norovirus, according to the analysis, published Tuesday in the CDC's Morbidity and Mortality Weekly Report [cdc.gov]. The tallies of outbreaks and illnesses are likely undercounts, given reporting delays and missed connections.

Though previous outbreak-based studies have provided bursts of data, the new analysis is the first to provide a comprehensive catalog of all the documented outbreaks since splash pads erupted in the 1990s.
[...]
Once infectious material gets into the water, disinfection systems that aren't working properly or are inadequate can allow pathogens to gush from every nozzle. Splash pads aren't unique in having to handle sick children in poopy swim diapers—but they are unique in how they are regulated. That is, in some places, they're not regulated at all.
[...]
The primary method for keeping recreational water free of infectious viruses and bacteria is chlorinating it. However, maintaining germ-killing chlorine concentration is especially difficult for splash pads because the jets and sprays aerosolize chlorine, lowering the concentration.

Still, in most splash-pad linked outbreaks, standard chlorine concentrations aren't enough anyway.
[...]
In 2023, the CDC recommended new health codes that call for "secondary disinfection" methods to keep Crypto at bay, including disinfection systems using ozone or ultraviolet light. Another possible solution is to have "single-pass" splash pads that don't recirculate water.

In all, to keep splash pads from being geysers of gastrointestinal parasites and pathogens, various changes have to happen, the CDC experts say.

Original Submission