关键词: 植物油, 植物油, 甲氨基阿维菌素苯甲酸盐, 上海青, 安全性

Abstract:

Heavy metal pollution in groundwater has become a worldwide problem. It may affect the water quality for daily use and thus the health of people. Based on the samples analysis of drinkable water from wells, which was the source of drinking water of the rural residents in Shenyang, health risks associated with heavy metal in rural drinking water in Shenyang were assessed using USEPA health risk assessment model. Results showed that, for the total collecting samples of the underground drinking water, the concentration of Hg, Pb in some samples exceeded the Chinese national standard for Drinking Water Quality (GB 5749-2006), so it should be taken into account seriously. For the total health risks caused by the way of drinking water, there were 6 sections of 17 investigated sample sections in this study where the health risks resulting from both non-carcinogens and carcinogens exceeded the maximum allowance levels recommended by ICRP (5.00×10-5 a-1). The health risks caused by the non-carcinogens were significantly lower than the standard value, illustrating that the health risks caused by the carcinogens was the main source in the study area. The greatest health risk to the individual through drinking water was Cr6+, followed by As and Cd. The carcinogens risk caused by Cr6+ ranged from 10-4 a-1 to 10-6 a-1, contributing to 52.64 to 100 percent of the total risks, Cr6+ was regarded as the main pollution that caused the health risks. Therefore, the pollution of Cr6+ in drinking groundwater should be firstly taken into account for prevention and treatment.