1,4-Dichlorobenzene in Florida Water

Unhealthy Levels of 1,4-Dichlorobenzene in the Water Supply of Florida Homes

1,4-Dichlorobenzene is a man-made chemical that can show up in drinking water and become a concern when levels are elevated. It is also known as p-Dichlorobenzene, and some homeowners recognize it by a sharp, mothball-like odor rather than the name. Because it can affect water’s smell and overall quality, many families prefer to address it at the point where water enters the home. A whole-house approach helps limit exposure during everyday uses like bathing, laundry, and dishwashing.

This compound has been used in products such as deodorants and moth repellents, and it can reach water through industrial handling, disposal practices, or contaminated runoff and groundwater. Once present, it may persist because it does not break down quickly under typical conditions. Even when water looks clear, an unwanted odor can still be noticeable in hot showers or when running multiple taps. If you suspect this issue, testing can confirm whether 1,4-Dichlorobenzene is present and help guide the right treatment.