天津地区人群对多环芳烃的暴露  

Population exposure to PAHs in Tianjin area

作　　者：李新荣[1] 李本纲[1] 陶澍[1] 郭淼[1] 曹军[1] 王学军[1] 刘文新[1] 徐福留[1] 吴永宁[2] 

机构地区：[1]北京大学环境学院地表过程分析与模拟教育部重点实验室,北京100871 [2]中国疾病预防控制中心营养与食品安全研究所,北京100050

出　　处：《环境科学学报》2005年第7期989-993,共5页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金(40332015;40024101);国家重点基础研究计划(2003CB415004)资助;地表过程分析与模拟实验室开放合作项目~~

摘　　要：以天津地区PAHs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-多途径暴露模型,估算了天津市人群对环境中16种PAHs的暴露水平.计算结果说明,天津地区居民终生日均暴露量为3.3μg·kg-1·d-1,其中儿童、青少年和成人亚群的暴露水平分别是4.3、3.8和3.1μg·kg-1·d-1.膳食摄入约占总暴露量的75%,呼吸贡献为20%,皮肤接触约占5%.8种致癌PAHs的终生日均暴露量为0.38μg·kg-1·d-1,其中3个亚群的暴露水平分别为0.48、0.45和0.36μg·kg-1·d-1.The population exposure to PAHs in Tianjin area was estimated based on field test data and other data from the literature. A multimedia/multi-pathway human exposure model was employed to calculate the populations' Chronic Daily Intake (CDI) of PAHs. The population's lifelong CDI was 3.3?μg·kg^(-1)·d^(-1) in this area. And the daily exposures of child, youth and adult were 4.3, 3.8, and 3.1?μg·kg^(-1)·d^(-1), respectively. Diet exposure was the most important route, accounting for around 75% of total dose. Respiration ranked second, and contributed 20% of the total dose. Lifelong CDI of eight carcinogenic PAHs was 0.38?μg·kg^(-1)·d^(-1), and it were 0.48, 0.45 and 0.36?μg·kg^(-1)·d^(-1)respectively in the three sub-populations.

关 键 词：天津地区 多环芳烃 人群 PAHS 暴露水平 暴露量 基础资料 实测数据 介质浓度 计算结果 多介质 天津市 青少年 生日 亚群 环境 

分 类 号：X132[环境科学与工程—环境科学] S652[农业科学—果树学]