a chemical used to control moths, molds and mildew, and also to deodorize restrooms and waste containers. At room temperature it is a colorless solid with a strong, pungent odor, usually associated with mothballs. Very high exposures can cause dizziness, headaches and liver problems. Exposure occurs via contaminated fish consumption, breathing air around mothballs or wherever p-DCB is used or manufactured. Infants can be exposed by drinking breast milk from mothers exposed to p-DCB.