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5 sourced facts about swimming pools, each with the context behind the number. 4 more are in today's round and appear here after it closes.
Answerabout 660,000 gallons (2,500 m³)
World Aquatics sets the dimensions; at the 2-meter minimum depth that's 2.5 million liters.
Source: World Aquatics specifications, via Wikipedia en.wikipedia.org
Answer15.4% (almost 40 million)
CDC researchers found the gap was widest among Black adults, 36.8% of whom reported not knowing how to swim.
Source: CDC Vital Signs, Drowning Deaths Rise in the United States (2024) cdc.gov
Answer54.7%
More than half of American adults never had formal lessons, according to the CDC's 2024 report.
Source: CDC Vital Signs, Drowning Deaths Rise in the United States (2024) cdc.gov
Answermore than 7 days
It's so chlorine-tolerant that it caused 89% of illnesses with a known cause in U.S. outbreaks linked to pools and other treated recreational water from 2000 to 2014.
Source: CDC, Morbidity and Mortality Weekly Report (2018) cdc.gov
Answerabout 5,900 per year
The CPSC estimate covers hospital emergency department visits for pool and spa submersion injuries.
Source: U.S. Consumer Product Safety Commission cpsc.gov