Most of the victims were teens and kids, said Ventura County Fire officials.
Source: 19 Hurt — 12 Transported To Hospital — After Pool Fumes Overcome Swimmers
Chlorine gas likely. In 10 years when some of them become breast cancer, prostate cancer, colon cancer, or gallbladder cancer statistics no one will ever be able to trace it back. And I really don’t understand people chlorinating their swimming pools.