| 天津地区人群对六六六的暴露分析 |
| 摘要点击 3322 全文点击 2677 投稿时间：2004-02-02 修订日期：2004-06-01 |
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| 中文关键词 人群暴露 六六六 暴露模型 慢性日均暴露量 |
| 英文关键词 population exposure HCH exposure model chronic daily intake |
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| 中文摘要 |
| 以天津地区六六六(HCH)各介质浓度的实测数据和文献中相关参数为基础资料 ,采用多介质暴露模型,估算了天津地区人群对环境中HCH的暴露水平 .计算结果说明 ,该地区人群的终身日均暴露量为0.05μg·(kg·d)-1,儿童、青少年和成人亚群的暴露水平分别为 0.10、0.06和0.04 μg·(kg·d)-1.膳食摄入占总暴露量的 87%以上 ,是最主要的途径 ;其次是呼吸暴露 ,对总暴露的贡献达5%～10%.各项参数中,膳食结构和食品、气相HCH残留水平是影响暴露的重要因素 . |
| 英文摘要 |
| The population exposure to HCH in Tianjin area is estimated based on field data on media concentration and other data from the literature. A multimedia /multipathway human exposure model is employed to calculate the population's Chronic Daily Intake (CDI) of HCH. The population's lifetime CDI was 0.05μg·(kg·d)-1, and the daily exposures of child, youth and adult were 0.10, 0.06, and 0.04μg·(kg·d)-1, respectively. The result indicates that diet exposure was the most important route, accounting for 87% of total dose. Respiration ranked second and contributed 5%～10% of the total dose. |
