Analyze the health risk assessment of chlorinated organic pollutants in the water source for food processing in Nanning

Abstract

6 kinds of chlorinated organic pollutants, such as chlorobenzene, 1, 2-dichlorobenzene, 1, 4 -dichlorobenzene, 1,2,4-trichlorobenzene, 2, 4 -dichlorophenol and pentachlorophenol, were analyzed in 5 main water source for 50 food processing companies in Nanning. The health risk assessment of the chlorinated organic pollutants were also studied by the drinking water assessment method of United States Environmental Protection Agency (USEPA). The results showed that all the chlorinated organic pollutants were not detected in the water example, as the concentrations are lower than the detection limit of the instruments. The instrumental detection limit were used as the concentrations of the pollutants to value the health risk assessment, and the results showed that the hazard index (HI) of total non-carcinogenic risks of the pollutants were below 1.0, suggesting that the water posed negligible health risk on local residents.