Both calcium hypochlorite and sodium hypochlorite are not naturally formed in the environment. They are mainly used as bleaching agents or disinfectants. The disinfectants in the sewage purification system and swimming pool contain both components. Can be decomposed by sunlight and the common substances in the air. Severe bleeding and perforation of the mouth, throat, esophagus, and stomach. If inhaled, it may cause sore throats and cough. Exposure to skin may cause burning sensation and inflammation. IARC has determined that hypochlorite has not yet been classified as being carcinogenic to humans. It is not universally practical to detect specific assays for the presence of sodium, calcium, or chlorine in blood or urine. U.S.EPA limits the amount of food contained in each pound of food from exceeding 0.0082 or 0.0036 pounds, respectively.