What process is used to eliminate inorganic compounds that can irritate eyes in pool water?

The correct choice is oxidation, which is a vital process in pool water treatment for eliminating inorganic compounds that can cause irritation, particularly to the eyes. Oxidation involves chemical reactions that break down these irritants, such as chloramines, which form when chlorine reacts with organic matter like sweat and urine. By using oxidizing agents, these compounds can be effectively neutralized, resulting in clearer and safer pool water for swimmers.

Filtration, while crucial for removing particulate matter and debris from the pool, does not specifically target chemical impurities like chloramines or inorganic irritants. Chlorination serves to disinfect the water by killing bacteria and viruses, but it can also contribute to the formation of irritating compounds if not managed properly. Purification is a broad term that could refer to various methods of improving water quality, but it does not specifically address the elimination of inorganic irritants as effectively as oxidation does. Thus, oxidation is a key component in maintaining swimmer comfort and overall water quality.