When do pool-chemical injuries most frequently occur?

Pool-chemical injuries most frequently occur when chemicals are mixed improperly. This is primarily due to the dangerous reactions that can occur when incompatible chemicals are combined. Mixing certain pool chemicals can result in the release of harmful gases, chemical burns, or even explosive reactions, which can pose significant risks to anyone nearby. Proper training on chemical handling emphasizes the importance of following safety protocols and guidelines, such as never mixing specific chemicals without understanding their reactions.

While other factors like water temperature or the use of personal protective equipment (PPE) can affect safety, they do not typically lead to the same frequency of injuries associated with improper chemical mixing. Low water temperatures and a neutral pH generally don't pose immediate hazards related to chemical interactions. PPE is meant to protect the individual handling the chemicals rather than causing injuries, so it is a safety measure, not a risk factor.